S-8241 Series S-8241 Series series lithium ion/lithium polymer re
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BATTERY PROTECTION 1-CELL PACK
S-8241 Series
S-8241 Series series lithium ion/lithium polymer rechargeable battery protection incorporating high-accuracy voltage detection circuits delay circuits. These suitable protection 1-cell lithium ion/lithium polymer battery packs from overcharge, overdischarge overcurrent.
Features
Internal high-accuracy voltage detection circuit Overcharge detection voltage: mV-step) Accuracy mV(+25 mV(-5 Overcharge release voltage: Accuracy Overdischarge detection voltage: (100 mV-step) Accuracy Accuracy ±100 Overdischarge release voltage: Overcurrent detection voltage: 0.05 mV-step) Accuracy Overcurrent detection voltage: (fixed) Accuracy ±100 high voltage withstand device used charger connection pins pins: Absolute maximum rating Delay times (overcharge: tCU; overdischarge: tDL; overcurrent tlOV1; overcurrent tlOV2) generated internal circuit. (External capacitors unnecessary.) Accuracy ±30% Internal three-step overcurrent detection circuit (overcurrent overcurrent load short-circuiting) Either battery charging function battery charge inhibiting function selected. Products with without power-down function selected. Charger detection function abnormal charge current detection function overdischarge hysterisis released detecting negative voltage (typ. -1.3 (Charger detection function). output voltage high voltage becomes equal lower than charger detection voltage (typ. -1.3 output voltage goes (Abnormal charge current detection function). current consumption Operation: typ. max. Power-down mode: max. Wide operating temperature range: (10) Small package SOT-23-5, SNT-6A (11) Lead-free products Overcharge release voltage Overcharge detection voltage Overcharge hysteresis overcharge hysteresis selected range 0.0, steps. (However, selection "Overcharge release voltage<3.8 enabled.) Overdischarge release voltage Overdischarge detection voltage Overdischarge hysteresis overdischarge hysteresis selected range steps. (However, selection "Overdischarge release voltage>3.4 enabled.)
Applications
Lithium-ion rechargeable battery packs Lithium- polymer rechargeable battery packs
Packages
Package name SOT-23-5 SNT-6A Drawing code Package MP005-A PG006-A Tape MP005-A PG006-A Reel MP005-A PG006-A Land PG006-A
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8241 Series Block Diagram
Delay circuit
Clock generation circuit
Load short-circuiting detection circuit
Counter circuit
Overcharge detection comparator
Level conversion circuit battery charging circuit battery charge inhibition circuit
RCOL
Overdischarge detection comparator
overdischarge hysterisis released when charger detected. Charger detection circuit
RVMD Overcurrent detection comparator RVMS
Overcurrent detection comparator
Remark diodes parasitic diodes. Figure
Seiko Instruments Inc.
Rev.7.6_00 Product Name Structure
Product Name
S-8241A
BATTERY PROTECTION 1-CELL PACK S-8241 Series
direction tape specifications SOT-23-5 SNT-6A Product code*2 Package code SOT-23-5 SNT-6A Serial code Sequentially from
Refer taping specifications. Refer Product Name List".
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8241 Series
Product Name List
SOT-23-5 Table (1/2) Overcharge detection voltage 4.275 4.280 4.350 4.275 4.295 4.325 4.200 4.325 4.280 4.325 4.320 4.350 4.350 4.280 4.325 4.300 4.200 4.295 4.280 4.350 4.220 4.280 4.300 4.275 4.295 4.295 4.295 4.280 4.350 4.350 4.200 4.350 4.100 4.325 4.275 4.350 4.180 Overcharge release voltage 4.075 3.980 4.100 4.175 4.095 4.075 4.100 4.125 4.080 4.075 4.070 4.150 4.150 4.080 4.075 4.100 4.100 4.095 4.080 4.000 4.220 4.080 4.100 4.075 4.095 4.095 4.095 4.080 4.150 4.150 4.200 4.150 3.850 4.075 4.175 4.150 3.930 Overdischarge detection voltage 2.30 2.30 2.30 2.30 2.30 2.50 2.30 2.30 2.30 2.50 2.50 2.30 2.30 2.30 2.50 2.30 2.30 2.30 2.30 2.60 2.30 2.30 2.30 2.30 2.30 2.30 2.30 2.60 2.05 2.00 2.50 2.10 2.50 2.50 2.30 2.30 2.50 Overdischarge release voltage 2.90 2.40 2.80 2.40 3.00 2.90 3.00 2.30 2.30 2.90 2.90 3.00 3.00 2.30 2.90 2.30 2.30 2.30 2.30 3.30 2.30 2.30 2.30 2.30 2.30 2.30 2.30 2.60 2.75 2.00 3.00 2.20 2.90 2.90 2.40 3.00 2.90 Overcurrent detection voltage VIOV1 0.100 0.125 0.075 0.100 0.200 0.100 0.100 0.100 0.160 0.150 0.100 0.150 0.200 0.130 0.100 0.100 0.150 0.130 0.130 0.200 0.200 0.200 0.150 0.100 0.080 0.090 0.060 0.200 0.200 0.200 0.100 0.200 0.150 0.150 0.100 0.100 0.150 Delay time combination*1
Product Name Item
battery charging function Unavailable Available Unavailable Available Unavailable Unavailable Unavailable Available Unavailable Unavailable Unavailable Available Available Unavailable Unavailable Available Unavailable Available Unavailable Unavailable Available Available Available Unavailable Available Available Available Available Available Available Available Available Unavailable Unavailable Available Available Unavailable
Power down function
S-8241ABAMC-GBAT2G S-8241ABBMC-GBBT2G S-8241ABCMC-GBCT2G S-8241ABDMC-GBDT2G S-8241ABEMC-GBET2G S-8241ABFMC-GBFT2G S-8241ABGMC-GBGT2G S-8241ABHMC-GBHT2G S-8241ABIMC-GBIT2G S-8241ABKMC-GBKT2G S-8241ABLMC-GBLT2G S-8241ABOMC-GBOT2G S-8241ABPMC-GBPT2G S-8241ABQMC-GBQT2G S-8241ABRMC-GBRT2G S-8241ABTMC-GBTT2G S-8241ABUMC-GBUT2G S-8241ABVMC-GBVT2G S-8241ABWMC-GBWT2G S-8241ABXMC-GBXT2G S-8241ABYMC-GBYT2G S-8241ACAMC-GCAT2G S-8241ACBMC-GCBT2G S-8241ACDMC-GCDT2G S-8241ACEMC-GCET2G S-8241ACFMC-GCFT2G S-8241ACGMC-GCGT2G S-8241ACHMC-GCHT2G S-8241ACIMC-GCIT2G S-8241ACKMC-GCKT2G S-8241ACLMC-GCLT2G S-8241ACNMC-GCNT2G S-8241ACOMC-GCOT2G S-8241ACPMC-GCPT2G S-8241ACQMC-GCQT2G S-8241ACRMC-GCRT2G S-8241ACSMC-GCST2G
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8241 Series
Table (2/2) Overcharge detection voltage 4.100 4.180 4.275 4.275 4.350 4.185 4.350 4.350 4.275 4.220 4.230 4.250 4.275 4.250 4.180 Overcharge release voltage 4.000 4.080 4.075 4.075 4.150 4.085 4.150 4.150 4.075 4.070 4.080 4.100 4.175 4.100 4.180 Overdischarge detection voltage 2.50 2.50 2.50 2.60 2.30 2.80 2.10 2.10 2.10 2.70 2.70 2.70 2.30 2.00 2.50 Overdischarge release voltage 2.90 2.90 2.90 2.90 3.00 2.90 2.20 2.10 2.10 3.00 3.00 3.00 2.40 2.70 3.00 Overcurrent detection voltage VIOV1 0.150 0.150 0.150 0.100 0.100 0.150 0.150 0.150 0.150 0.300 0.300 0.300 0.100 0.150 0.100 Delay time combination*1
Product Name Item
battery charging function Unavailable Unavailable Unavailable Unavailable Available Unavailable Available Unavailable Unavailable Available Available Available Unavailable Available Available
Power down function
S-8241ACTMC-GCTT2G S-8241ACUMC-GCUT2G S-8241ACXMC-GCXT2G S-8241ACYMC-GCYT2G S-8241ADAMC-GDAT2G S-8241ADDMC-GDDT2G S-8241ADEMC-GDET2G S-8241ADFMC-GDFT2G S-8241ADGMC-GDGT2G S-8241ADLMC-GDLT2G S-8241ADMMC-GDMT2G S-8241ADNMC-GDNT2G S-8241ADOMC-GDOT2G S-8241ADQMC-GDQT2G S-8241ADTMC-GDTT2G
S-8241ADVMC-GDVT2G 3.900 3.900 2.00 2.30 0.150 Available Refer Table about details delay time combinations (5). Remark Please contact sales office products with detection voltage value other than those specified above.
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8241 Series
SNT-6A Table Overcharge detection voltage 4.275 4.350 4.275 4.350 4.350 Overcharge release voltage 4.175 4.150 4.075 4.150 4.150 Overdischarge detection voltage 2.30 2.35 2.30 2.70 2.10 Overdischarge release voltage 2.40 2.65 2.40 2.70 2.10 Overcurrent detection voltage VIOV1 0.100 0.200 0.140 0.200 0.150 Delay time combination*1
Product Name Item
battery charging function Available Available Available Unavailable Unavailable
Power down function
S-8241ABDPG-KBDTFG S-8241ABSPG-KBSTFG S-8241ABZPG-KBZTFG S-8241ACZPG-KCZTFG S-8241ADFPG-KDFTFG
S-8241ADHPG-KDHTFG 4.250 4.050 2.40 2.90 0.100 Available Refer Table about details delay time combinations (5). Remark Please contact sales office products with detection voltage value other than those specified above.
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8241 Series
Table Delay time combination Overcharge detection delay time 0.125 0.25 0.25 Overdischarge detection delay time Overcurrent detection delay time tlOV1
Remark delay times changed within range listed Table details, please contact sales office.
Table Delay time Symbol Selection range Remarks Select value from left. Select value from left. Select value from left.
Overcharge detection delay time 0.25 Overdischarge detection delay time 62.5 Overcurrent detection delay time tlOV1 Remark value surrounded bold lines delay time standard products.
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8241 Series Configurations
SOT-23-5 view
Table
Symbol
Description Voltage detection between (Overcurrent detection pin) Positive power input Negative power input gate connection discharge control (CMOS output) gate connection charge control (CMOS output)
Figure
SNT-6A view
Table Symbol NC*1 Description
Figure
connection gate connection charge control (CMOS output) gate connection discharge control (CMOS output) Negative power input Positive power input Voltage detection between (Overcurrent detection pin) electrically open. connected VSS.
Seiko Instruments Inc.
Rev.7.6_00 Absolute Maximum Ratings
BATTERY PROTECTION 1-CELL PACK S-8241 Series
Table Item Input voltage between input voltage output voltage output voltage Power dissipation SOT-23-5 Symbol Topr Applicable unless otherwise specified) Rating Unit -0.3 +0.3 -0.3 +0.3 -0.3 +0.3 (When mounted board) +125
SNT-6A Operation ambient temperature
Storage temperature Tstg When mounted board [Mounted board] Board size: 114.3 76.2 t1.6 Board name: JEDEC STANDARD51-7 Caution
absolute maximum ratings rated values exceeding which product could suffer physical damage. These values must therefore exceeded under conditions.
Power Disspation [mW] Ambient Temperature (Ta) [°C] SOT-23-5 SNT-6A
Figure Power Dissipation Package (When Mounted Board)
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8241 Series Electrical Characteristics
Other than detection delay time
Table Item DETECTION VOLTAGE Overcharge detection voltage Step Symbol Condition °C*1 When When Min. VCU-0.025 VCU-0.030 VCL-0.050 VCL-0.025 Typ.
unless otherwise specified) Test Test Max. Unit Condition Circuit VCU+0.025 VCU+0.030 VCL+0.050 VCL+0.025
Overcharge release voltage VCU-VCL Step Overdischarge detection voltage VDL-0.080 VDL+0.080 Step Overdischarge release voltage VDU-0.100 VDU+0.100 When VDU-VDL Step When VDU-0.080 VDU+0.080 Overcurrent detection voltage VIOV1 VIOV1-0.020 VIOV1 VIOV1+0.020 VIOV1 0.05 0.3V, Step Overcurrent detection voltage VIOV2 Load short-circuiting detection VSHORT voltage based -1.7 -1.3 -0.9 voltage Charger detection voltage VCHA -2.0 -1.3 -0.6 Overcharge detection voltage TCOE1 -0.5 mV/°C temperature factor Overcurrent detection voltage TCOE2 -0.1 mV/°C temperature factor INPUT VOLTAGE, OPERATING VOLTAGE Input voltage between VDS1 absolute maximum rating -0.3 Input voltage between VDS2 absolute maximum rating -0.3 Operating voltage between VDSOP1 Internal circuit operating voltage Operating voltage between VDSOP2 Internal circuit operating voltage CURRENT CONSUMPTION Power-down function available Current consumption during IOPE normal operation Current consumption power IPDN down CURRENT CONSUMPTION Power-down function unavailable Current consumption during IOPE normal operation Overdischarge current IOPED consumption OUTPUT RESISTANCE resistance RCOH resistance RCOL 2400 resistance RDOH resistance RDOL INTERNAL RESISTANCE Internal resistance between RVMD Internal resistance between RVMS BATTERY CHARGING FUNCTION battery function either battery charging function" battery charge inhibiting function" depending upon product type. battery charge starting charger V0CHA battery charging Available voltage battery charge inhibiting V0INH battery charging Unavailable battery voltage Since products screened high temperatures, specification this temperature range guaranteed design, tested production.
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8241 Series
Other than detection delay time (-40 °C*1)
Table Item Symbol Condition Min. °C*1 unless otherwise specified) Test Test Typ. Max. Unit Condition Circuit
DETECTION VOLTAGE Overcharge detection voltage VCU-0.055 VCU+0.040 Step Overcharge release voltage VCL-0.095 VCL+0.060 When -VCL Step When VCL-0.055 VCL+0.040 Overdischarge detection voltage VDL-0.120 VDL+0.120 Step Overdischarge release voltage VDU-0.140 VDU+0.140 When VDU-VDL Step When VDU-0.120 VDU+0.120 Overcurrent detection voltage VIOV1 VIOV1-0.026 VIOV1 VIOV1+0.026 VIOV1 0.05 0.3V, Step Overcurrent detection voltage VIOV2 0.37 0.63 Load short-circuiting detection VSHORT voltage based -1.9 -1.3 -0.7 voltage Charger detection voltage VCHA -2.2 -1.3 -0.4 Overcharge detection voltage TCOE1 -0.7 mV/°C temperature factor Overcurrent detection voltage TCOE2 -0.2 mV/°C temperature factor INPUT VOLTAGE, OPERATING VOLTAGE Input voltage between VDS1 absolute maximum rating -0.3 Input voltage between VDS2 absolute maximum rating -0.3 Operating voltage between VDSOP1 Internal circuit operating voltage Operating voltage between VDSOP2 Internal circuit operating voltage CURRENT CONSUMPTION Power-down function available Current consumption during IOPE normal operation Current consumption power IPDN down CURRENT CONSUMPTION Power-down function unavailable Current consumption during IOPE normal operation Overdischarge current IOPED consumption OUTPUT RESISTANCE resistance RCOH 0.07 resistance RCOL 3500 resistance RDOH 0.07 resistance RDOL 0.07 INTERNAL RESISTANCE Internal resistance between RVMD 1310 Internal resistance between RVMS BATTERY CHARGING FUNCTION battery function either battery charging function" battery charge inhibiting function" depending upon product type. battery charge starting charger V0CHA battery charging Available voltage battery charge inhibiting V0INH battery charging Unavailable battery voltage Since products screened high temperatures, specification this temperature range guaranteed design, tested production.
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8241 Series
Detection delay time
S-8241ABA, S-8241ABC, S-8241ABD, S-8241ABE, S-8241ABF, S-8241ABG, S-8241ABH, S-8241ABI, S-8241ABK, S-8241ABL, S-8241ABQ, S-8241ABT, S-8241ABU, S-8241ABV, S-8241ABX, S-8241ABZ, S-8241ACA, S-8241ACB, S-8241ACE, S-8241ACF, S-8241ACG, S-8241ACH, S-8241ACL, S-8241ACO, S-8241ACP, S-8241ACQ, S-8241ACR, S-8241ACS, S-8241ACT, S-8241ACU, S-8241ACX, S-8241ACY, S-8241ADA, S-8241ADD, S-8241ADH, S-8241ADL, S-8241ADM, S-8241ADN, S-8241ADO, S-8241ADQ, S-8241ADT, S-8241ADV Table Item DELAY TIME Overcharge detection delay time Overdischarge detection delay time Overcurrent detection delay time Overcurrent detection delay time Load short-circuiting detection delay time DELAY TIME Overcharge detection delay time Overdischarge detection delay time Overcurrent detection delay time Overcurrent detection delay time Load short-circuiting detection delay time tIOV1 tIOV2 tSHORT 0.55 Symbol Condition Min. Typ. Max. Unit Test Test Condition Circuit
tlOV1 tlOV2 tSHORT
87.5
162.5 10.4
Since products screened high temperature, specification this temperature range guaranteed design, tested production.
S-8241ABB, S-8241ABO, S-8241ABP, S-8241ABS, S-8241ACI, S-8241ACK, S-8241ACN, S-8241ACZ, S-8241ADE Table Item DELAY TIME Overcharge detection delay time Overdischarge detection delay time Overcurrent detection delay time Overcurrent detection delay time Load short-circuiting detection delay time DELAY TIME Overcharge detection delay time Overdischarge detection delay time Overcurrent detection delay time Overcurrent detection delay time Load short-circuiting detection delay time
Symbol
Condition
Min.
Typ.
Max.
Unit
Test Test Condition Circuit
tlOV1 tlOV2 tSHORT tIOV1 tIOV2 tSHORT
87.5
162.5
Since products screened high temperature, specification this temperature range guaranteed design, tested production.
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8241 Series
S-8241ABW, S-8241ABY Table Item DELAY TIME Overcharge detection delay time Overdischarge detection delay time Overcurrent detection delay time Overcurrent detection delay time Load short-circuiting detection delay time DELAY TIME Overcharge detection delay time Overdischarge detection delay time Overcurrent detection delay time Overcurrent detection delay time Load short-circuiting detection delay time tIOV1 tIOV2 tSHORT 0.138 0.25 0.425 Symbol Condition Min. Typ. Max. Unit Test Test Condition Circuit
tlOV1 tlOV2 tSHORT
0.175 87.5
0.25
0.325 162.5 10.4
Since products screened high temperature, specification this temperature range guaranteed design, tested production.
S-8241ABR, S-8241ACD Table Item DELAY TIME Overcharge detection delay time Overdischarge detection delay time Overcurrent detection delay time Overcurrent detection delay time Load short-circuiting detection delay time DELAY TIME Overcharge detection delay time Overdischarge detection delay time Overcurrent detection delay time Overcurrent detection delay time Load short-circuiting detection delay time tIOV1 tIOV2 tSHORT Symbol Condition Min. Typ. Max. Unit Test Test Condition Circuit
tlOV1 tlOV2 tSHORT
87.5
162.5 10.4
Since products screened high temperature, specification this temperature range guaranteed design, tested production.
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8241 Series
S-8241ADF, S-8241ADG Table Item Symbol Condition Min. Typ. Max. Unit Test Test Condition Circuit
DELAY TIME Overcharge detection delay time 0.175 0.25 0.325 Overdischarge detection delay time Overcurrent detection delay time tlOV1 Overcurrent detection delay time tlOV2 Load short-circuiting detection delay time tSHORT DELAY TIME Overcharge detection delay time 0.138 0.25 0.425 Overdischarge detection delay time Overcurrent detection delay time tIOV1 Overcurrent detection delay time tIOV2 Load short-circuiting detection delay time tSHORT Since products screened high temperature, specification this temperature range guaranteed design, tested production.
Seiko Instruments Inc.
Rev.7.6_00 Test Circuits
Caution
BATTERY PROTECTION 1-CELL PACK S-8241 Series
Unless otherwise specified, output voltage levels (VCO) (VDO) judged threshold voltage (1.0 N-channel FET. Judge level with respect level with respect VSS.
Test Condition Test Circuit (Overcharge detection voltage, Overcharge release voltage, Overdischarge detection voltage, Overdischarge release voltage) overcharge detection voltage (VCU) defined voltage between which goes from when voltage gradually increased from normal condition overcharge release voltage (VCL) defined voltage between which goes from when voltage then gradually decreased. Gradually decreasing voltage overdischarge detection voltage (VDL) defined voltage between which goes from "H". overdischarge release voltage (VDU) defined voltage between which goes from when voltage then gradually increased. Test Condition Test Circuit (Overcurrent detection voltage, Overcurrent detection voltage, Load short-circuiting detection voltage) overcurrent detection voltage (VIOV1) defined voltage between which goes from when voltage gradually increased from normal condition overcurrent detection voltage (VIOV2) defined voltage between which goes from when voltage increased speed between from normal condition load short-circuiting detection voltage (VSHORT) defined voltage between which goes from when voltage increased speed between from normal condition Test Condition Test Circuit (Charger detection voltage, abnormal charge current detection voltage) Applied only products with overdischarge hysteresis under overdischarge condition. Increase gradually, (VDU+VDL) (within overdischarge hysteresis, overdischarge condition), then decrease from gradually. voltage between which goes from charger detection voltage (VCHA). Applied only products without overdischarge hysteresis under normal condition. Decrease from gradually. voltage between which goes from abnormal charge current detection voltage. abnormal charge current detection voltage same value charger detection voltage (VCHA). Test Condition Test Circuit (Normal operation current consumption, Power-down current consumption, Overdischarge current consumption) under normal condition. current flowing through normal operation consumption current (IOPE). products with power-down function under overdischarge condition. current flowing through power-down current consumption (IPDN). products without power-down function under overdischarge condition. current flowing through overdischarge current consumption (IOPED).
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8241 Series
Test Condition Test Circuit (Internal resistance between VDD, Internal resistance between VSS) under overdischarge condition. Measure current flowing through pin. 1.8V |IVM| gives internal resistance (RVMD) between VDD. under overcurrent condition. Measure current flowing through pin. |IVM| gives internal resistance (RVMS) between VSS. Test Condition Test Circuit resistance, resistance) under normal condition. Measure current flowing through pin. |ICO| resistance (RCOH). under overcharge condition. Measure current flowing through pin. |ICO| resistance (RCOL). Test Condition Test Circuit resistance, resistance) under normal condition. Measure current flowing through pin. |IDO| gives resistance (RDOH). under overdischarge condition. Measure current flowing through pin. |IDO| gives resistance (RDOL). Test Condition Test Circuit (Overcharge detection delay time, Overdischarge detection delay time) under normal condition. Increase gradually overcharge detection voltage increase overcharge detection voltage momentarily (within time after becomes overcharge detection voltage until goes overcharge detection delay time (tCU). under normal condition. Decrease gradually overdischarge detection voltage decrease overdischarge detection voltage momentarily (within time after becomes overdischarge detection voltage until goes overdischarge detection delay time (tDL). Test Condition Test Circuit (Overcurrent detection delay time, Overcurrent detection delay time, Load short-circuiting detection delay time, Abnormal charge current detection delay time) under normal condition. Increase from 0.35 momentarily (within time after becomes overcurrent detection voltage (VIOV1) until goes overcurrent detection delay time (tIOV1). under normal condition. Increase from momentarily (within time after becomes overcurrent detection voltage (VIOV1) until goes overcurrent detection delay time (tIOV2). Caution overcurrent detection delay time starts when overcurrent detected, since delay circuit common.
under normal condition. Increase from momentarily (within time after becomes load short-circuiting detection voltage (VSHORT) until goes load short-circuiting detection delay time (tSHORT). under normal condition. Decrease from -2.5 momentarily (within time after becomes charger detection voltage (VCHA) until goes abnormal charge current detection delay time. abnormal charge current detection delay time same value overcharge detection delay time.
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8241 Series
(10) Test Condition Test Circuit (Product with battery charging function) battery charge start charger voltage) decrease gradually. voltage between which goes (VVM higher) battery charge start charger voltage (V0CHA). (11) Test Condition Test Circuit (Product with battery charge inhibiting function) battery charge inhibiting battery voltage) Increase gradually. voltage between which goes (VVM higher) battery charge inhibiting battery voltage (V0INH).
S-8241 Series
Test circuit
Figure
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8241 Series Operation
Remark Refer Battery Protection Connection Example".
Normal Condition
S-8241 monitors voltage battery connected pins voltage difference between pins control charging discharging. When battery voltage range from overdischarge detection voltage (VDL) overcharge detection voltage (VCU), voltage range from charger detection voltage (VCHA) overcurrent detection voltage (VIOV1) (the current flowing through battery equal lower than specified value), turns both charging discharging control FETs This condition called normal condition this condition charging discharging carried freely.
Overcurrent Condition
When discharging current becomes equal higher than specified value (the voltage equal higher than overcurrent detection voltage) during discharging under normal condition state continues overcurrent detection delay time longer, S-8241 turns discharging control stop discharging. This condition called overcurrent condition. (The overcurrent includes overcurrent overcurrent load short-circuiting.) pins shorted internally RVMS resistor under overcurrent condition. When load connected, voltage equals voltage load. overcurrent condition returns normal condition when load released impedance between pins (see Figure connection example) becomes higher than automatic recoverable impedance (see equation below). When load removed, goes back potential since shorted with RVMS resistor. Detecting that potential lower than overcurrent detection voltage (VIOV1), returns normal condition. Automatic recoverable impedance {Battery voltage (Minimum value overcurrent detection voltage) (RVMS maximum value) Example: Battery voltage overcurrent detection voltage (VIOV1) Automatic recoverable impedance (3.5 0.07 Remark automatic recoverable impedance varies with battery voltage overcurrent detection voltage settings. Determine minimum value open load using above equation have automatic recovery from overcurrent condition work after checking overcurrent detection voltage setting
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8241 Series
Overcharge Condition
When battery voltage becomes higher than overcharge detection voltage (VCU) during charging under normal condition state continues overcharge detection delay time (tCU) longer, S-8241 turns charging control stop charging. This condition called overcharge condition. overcharge condition released following cases ((1) (2)) depending products with without overcharge hysteresis: Products with overcharge hysteresis (overcharge detection voltage (VCU) overcharge release voltage (VCL)) When battery voltage drops below overcharge release voltage (VCL), S-8241 turns charging control returns normal condition. When load connected discharging starts, S-8241 turns charging control returns normal condition. release mechanism follows: discharging current flows through internal parasitic diode charging immediately after load connected discharging starts, voltage increases about voltage diode) from voltage momentarily. detects this voltage (being higher than overcurrent detection voltage) releases overcharge condition. Consequently, case that battery voltage equal lower than overcharge detection voltage (VCU), returns normal condition immediately, case battery voltage higher than overcharge detection voltage (VCU), does return normal condition until battery voltage drops below overcharge detection voltage (VCU) even load connected. addition voltage equal lower than overcurrent detection voltage when load connected discharging starts, does return normal condition. Remark battery charged voltage higher than overcharge detection voltage (VCU) battery voltage does drop below overcharge detection voltage (VCU) even when heavy load, which causes overcurrent, connected, overcurrent overcurrent work until battery voltage drops below overcharge detection voltage (VCU). Since actual battery has, however, internal impedance several dozens battery voltage drops immediately after heavy load which causes overcurrent connected, overcurrent overcurrent work. Detection load short-circuiting works regardless battery voltage. Products without overcharge hysteresis (Overcharge detection voltage (VCU) Overcharge release voltage (VCL)) When battery voltage drops below overcharge release voltage (VCL), S-8241 turn charging control returns normal condition. When load connected discharging starts, S-8241 turns charging control returns normal condition. release mechanism explained follows discharging current flows through internal parasitic diode charging immediately after load connected discharging starts, voltage increases about voltage diode) from voltage momentarily. Detecting this voltage (being higher than overcurrent detection voltage), increases overcharge detection voltage about releases overcharge condition. Consequently, when battery voltage equal lower than overcharge detection voltage (VCU) S-8241 immediately returns normal condition. battery voltage higher than overcharge detection voltage (VCU) S-8241 does return normal condition until battery voltage drops below overcharge detection voltage (VCU) even load connected. voltage equal lower than overcurrent detection voltage when load connected discharging starts, S-8241 does return normal condition. Remark battery charged voltage higher than overcharge detection voltage (VCU) battery voltage does drop below overcharge detection voltage (VCU) even when heavy load, which causes overcurrent, connected, overcurrent overcurrent work until battery voltage drops bellow overcharge detection voltage (VCU) Since actual battery has, however, internal impedance several dozens battery voltage drops immediately after heavy load which causes overcurrent connected, overcurrent overcurrent work. Detection load short-circuiting works regardless battery voltage.
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8241 Series
Overdischarge Condition
With power-down function When battery voltage drops below overdischarge detection voltage (VDL) during discharging under normal condition continues overdischarge detection delay time (tDL) longer, S-8241 turns discharging control stops discharging. This condition called overdischarge condition. After discharging control turned off, pulled RVMD resistor between Meanwhile potential difference between drops below (typ.) (the load short-circuiting detection voltage), current consumption reduced power-down current consumption (IPDN). This condition called power-down condition. pins shorted RVMD resistor under overdischarge power-down conditions. power-down condition released when charger connected potential difference between becomes (typ.) higher (load short-circuiting detection voltage). this time, still off. When battery voltage becomes overdischarge detection voltage (VDL) higher*1, S-8241 turns changes normal condition from overdischarge condition. voltage less than charger detection voltage (VCHA), when battery under overdischarge condition connected charger, overdischarge condition released (the discharging control turned usual, provided that battery voltage reaches overdischarge release voltage (VDU) higher. Without power-down function When battery voltage drops below overdischarge detection voltage (VDL) during discharging under normal condition continues overdischarge detection delay time (tDL) longer, S-8241 turns discharging control stops discharging. When discharging control turned off, pulled RVMD resistor between Meanwhile potential difference between drops below (typ.) (the load short-circuiting detection voltage), current consumption reduced overdischarge current consumption (IOPED). This condition called overdischarge condition. pins shorted RVMD resistor under overdischarge condition. When charger connected, overdischarge condition released same explained above respect products having power-down function. products without power-down function, addition, even charger connected, S-8241 turns discharging control changes normal condition from overdischarge condition provided that load disconnected that potential difference between drops below overcurrent detection voltage (VIOV1), since pulled down RVMS resistor between when battery voltage reaches overdischarge release voltage (VDU) higher.
Charger Detection
voltage lower than charger detection voltage (VCHA) when battery overdischarge condition connected charger, overdischarge hysteresis released, when battery voltage becomes equal higher than overdischarge detection voltage (VDL), overdischarge condition released (the discharging control turned on). This action called charger detection. (The charger detection reduces time charging which charging current flows through internal parasitic diode discharging control FET) voltage lower than charger detection voltage (VCHA) when battery overdischarge condition connected charger, overdischarge condition released (the discharging control turned usual, when battery voltage reaches overdischarge release voltage (VDU) higher.
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8241 Series
Abnormal Charge Current Detection
voltage drops below charger detection voltage (VCHA) during charging under normal condition continues overcharge detection delay time (tCU) longer, S-8241 turns charging control stops charging. This action called abnormal charge current detection. Abnormal charge current detection works when discharging control voltage "H") voltage drops below charger detection voltage (VCHA). When abnormal charge current flows into battery overdischarge condition, S-8241 consequently turns charging control stops charging after battery voltage becomes overdischarge detection voltage higher voltage becomes "H") overcharge detection delay time (tCU) elapses. Abnormal charge current detection released when voltage difference between becomes lower than charger detection voltage (VCHA) separating charger. Since battery charging function higher priority than abnormal charge current detection function, abnormal charge current detected product with battery charging function while battery voltage low.
Delay Circuits
detection delay times determined dividing clock approximately counter. [Example] Overcharge detection delay time abnormal charge current detection delay time): Overdischarge detection delay time: Overcurrent detection delay time: Overcurrent detection delay time: Caution Counting overcurrent detection delay time starts when overcurrent detected. Having detected overcurrent overcurrent detected after overcurrent detection delay time, S-8241 turns discharging control shown Figure this case, overcurrent detection delay time seem longer overcurrent detection delay time seem shorter than expected.
Time Overcurrent detection delay time (tIOV2) VIOV2 VIOV1 Time
Figure
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8241 Series
<For products with power-down function> After having detected overcurrent (overcurrent overcurrent short-circuiting), state held overdischarge detection delay time longer without releasing load, condition changes power-down condition when battery voltage drops below overdischarge detection voltage. battery voltage drops below overdischarge detection voltage overcurrent, discharging control turned when overcurrent detected. battery voltage recovers slowly battery voltage after overdischarge detection delay time equal lower than overdischarge detection voltage, S-8241 changes power-down condition. <For products without power-down function> After having detected overcurrent (overcurrent overcurrent short-circuiting), state held overdischarge detection delay time longer without releasing load, condition changes overdischarge condition when battery voltage drops below overdischarge detection voltage. battery voltage drops below overdischarge detection voltage overcurrent, discharging control turned when overcurrent detected. battery voltage recovers slowly battery voltage after overdischarge detection delay time equal lower than overdischarge detection voltage, S-8241 changes overdischarge condition.
Battery Charging Function
This function enables charging connected battery whose voltage self-discharge. When charger having battery start charging charger voltage (V0CHA) higher connected between pins, charging control gate fixed potential. When voltage between gate source charging control becomes equal higher than turn-on voltage charger voltage, charging control turned start charging. this time, discharging control charging current flows through internal parasitic diode discharging control FET. battery voltage becomes equal higher than overdischarge release voltage (VDU), normal condition returns. Caution Some battery providers recommend charging completely discharged batteries. Please refer battery providers before selection battery charging function. battery charging function higher priority than abnormal charge current detection function. Consequently, product with battery charging function charges battery abnormal charge current cannot detected during battery voltage most lower). When battery connected first time, enter normal condition which discharging possible. this case, voltage equal voltage (short pins connect charger) enter normal condition.
Battery Charge Inhibiting Function
This function forbids charging connected battery which short-circuited internally battery). When battery voltage becomes (typ.) lower, charging control gate fixed potential forbid charging. Charging performed, when battery voltage battery charge inhibiting voltage (V0INH) higher. Caution Some battery providers recommend charging completely discharged batteries. Please refer battery providers before selection battery charging function. When battery connected first time, enter normal condition which discharging possible. this case, voltage equal voltage (short pins connect charger) enter normal condition.
Seiko Instruments Inc.
Rev.7.6_00 Timing Chart
BATTERY PROTECTION 1-CELL PACK S-8241 Series
Overcharge overdischarge detection (for products with power-down function)
oltag
Char conn ected conn ected rchar ctio time rdisch arge etection elay
ote: Norm ode, harge ode, erdisc harge mode, Overcurrent charger sumed harge with onstant urrent.
Figure Overcharge overdischarge detection (for products without power-down function)
atte
erdi harg dela
Figure
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8241 Series
Overcurrent detection
Battery voltage
VSHORT VIOV2 VIOV1
Charger connection Load connection
Overcurrent detection delay time (tIOV1) Overcurrent detection delay time (tIOV2) Load short-circuiting detection delay time SHORT) Mode
Note: Normal mode, Overcharge mode, Overdischarge mode, Overcurrent mode charger assumed charge with constant current.
Figure Charger detection
Battery voltage
VCHA
Charger connection Load connection
Overdischarge detection delay time (tDL) voltage VCHA Overdischarge released overdischarge detection voltage (VDL)
Mode
Note: Normal mode, Overcharge mode, Overdischarge mode, Overcurrent mode charger assumed charge with constant current.
Figure
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8241 Series
Abnormal charge current detection
Battery voltage
VCHA
Charger connection Load connection
Abnormal charging current detection delay time Overdischarge detection delay time (tDL) Overcharge detection delay time (tCU))
Mode
Note: Normal mode, Overcharge mode, Overdischarge mode, Overcurrent mode charger assumed charge with constant current.
Figure
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8241 Series Battery Protection Connection Example
Battery
S-8241 Series
FET1 FET2
Figure Table Constants External Components Remarks Threshold voltage overdischarge detection voltage. FET1 Discharge control MOS_FET Withstand voltage between gate source Charger voltage Threshold voltage overdischarge detection voltage. FET2 Charge control MOS_FET Withstand voltage between gate source Charger voltage Protection Relation should Resistor value power fluctuation maintained.*3 Protection power Install capacitor 0.01 Capacitor 0.01 fluctuation higher between VSS. suppress current flow caused reverse connection charger, Protection charger Resistor reverse connection resistance within range from with threshold voltage lower used, fail charging current. with threshold voltage equal higher than overdischarge detection voltage used, discharging stop before overdischarge detected. withstand voltage between gate source lower than charger voltage, break. higher resistance than charger connected reversely, current flows from charger voltage between exceed absolute maximum rating. Install resistor higher protection. high resistance, overcharge detection voltage increases current consumption. capacitor less than 0.01 oscillate when load short-circuiting detected, charger connected reversely, overcurrent detected. capacitor 0.01 higher should installed. some types batteries oscillation stop unless capacity increased. capacity evaluating actual application. less than current which bigger than power dissipation flows through break when charger connected reversely. resistor bigger than installed charging current when high-voltage charger connected. Caution above constants changed without notice. been confirmed whether operation normal circuits other than above example connection. addition, example connection shown above constant guarantee proper operation. Perform thorough evaluation using actual application constant. Symbol Parts Purpose Typ. min. max.
Seiko Instruments Inc.
Rev.7.6_00 Precautions
BATTERY PROTECTION 1-CELL PACK S-8241 Series
attention operating conditions input/output voltage load current that power loss does exceed power dissipation package. apply electrostatic discharge this that exceeds performance ratings built-in electrostatic protection circuit. claims responsibility disputes arising connection with infringement products including this patents owned third party.
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8241 Series
Characteristics (Typical Data)
Detection/release voltage temperature characteristics
Overcharge detection voltage temperature
Overcharge release voltage temperature
4.33 4.31
4.23 4.21
4.27 4.25 4.23
4.29
4.19 4.17 4.15 4.13
Ta(°C)
Overdischarge detection voltage temperature
Ta(°C)
Overdischarge release voltage temperature
2.40 2.36
2.50 2.46
2.28 2.24 2.20
2.32
2.42 2.38 2.34 2.30
Ta(°C)
Overcurrent detection voltage temperature
Ta(°C)
Overcurrent detection voltage temperature
0.110 0.105
0.60 0.55
VIOV1
0.100 0.095 0.090
VIOV2
0.50 0.45 0.40
Ta(°C)
Ta(°C)
Current consumption temperature characteristics
Current consumption Temperature normal mode Current consumption Temperature power-down mode
0.10 0.08
IOPE
IPDN
Ta(°C)
0.06 0.04 0.02 0.00
Ta(°C)
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8241 Series
Current consumption Power voltage characteristics
Current consumption power supply volatge dependency
IOPE
VDD(V)
Detection/release delay time temperature characteristics
Overcharge detection delay time temperature
Overcharge release delay time temperature
(ms)
Ta(°C)
Overdischarge detection delay time temperature
Ta(°C)
Overdischarge release delay time temperature
(ms)
Ta(°C)
Overcurrent detection delay time temperature
Ta(°C)
Overcurrent release delay time temperature
tIOV1 Release
tIOV1 (ms)
Ta(°C)
Ta(°C)
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8241 Series
Overcurrent detection delay time temperature
Load short-circuiting delay time temperature
tSHORT
tIOV2 (ms)
Ta(°C)
Ta(°C)
Overcurrent detection delay time power supply voltage dependency
Delay time power-voltage characteristics
Overcurrent detection delay time power supply voltage dependency
tIOV1 (ms)
tIOV2 (ms)
VDD(V)
pin/DO output current characteristics
source current characteristics
VDD(V)
-1.4 -1.2 -1.0 -0.8 -0.6 -0.4 -0.2
sink current characteristics
(mA)
VCO(V)
source current characteristics
VCO(V)
sink current characteristics
-1.8 -1.6 -1.4 -1.2 -1.0 -0.8 -0.6 -0.4 -0.2
(mA)
(mA)
VDO(V)
VDO(V)
Seiko Instruments Inc.
2.9±0.2 1.9±0.2
0.16 -0.06
+0.1
0.95±0.1 0.4±0.1
MP005-A-P-SD-1.2
TITLE SCALE UNIT
SOT235-A-PKG Dimensions MP005-A-P-SD-1.2
Seiko Instruments Inc.
4.0±0.1(10 pitches:40.0±0.2)
+0.1
2.0±0.05
0.25±0.1
+0.2
4.0±0.1 1.4±0.2
3.2±0.2
Feed direction
MP005-A-C-SD-2.1
TITLE SCALE UNIT
SOT235-A-Carrier Tape MP005-A-C-SD-2.1
Seiko Instruments Inc.
12.5max.
Enlarged drawing central part
9.0±0.3
(60°)
(60°)
MP005-A-R-SD-1.1
TITLE SCALE UNIT
SOT235-A-Reel MP005-A-R-SD-1.1
QTY. 3,000
Seiko Instruments Inc.
1.57±0.03
+0.05 0.08 -0.02 0.48±0.02
0.2±0.05
PG006-A-P-SD-2.0
TITLE SCALE UNIT
SNT-6A-A-PKG Dimensions PG006-A-P-SD-2.0
Seiko Instruments Inc.
+0.1
2.0±0.05
4.0±0.1
0.25±0.05
1.85±0.05
+0.1
4.0±0.1
0.65±0.05
Feed direction
PG006-A-C-SD-1.0
TITLE SCALE UNIT
SNT-6A-A-Carrier Tape PG006-A-C-SD-1.0
Seiko Instruments Inc.
12.5max.
Enlarged drawing central part
9.0±0.3
(60°)
(60°)
PG006-A-R-SD-1.0
TITLE SCALE UNIT
SNT-6A-A-Reel PG006-A-R-SD-1.0
QTY. 5,000
Seiko Instruments Inc.
0.52
1.36
0.52
Caution Making wire pattern under package possible. However, note that package upraised thickness made silk screen printing solder resist pattern because this package does have standoff.
PG006-A-L-SD-3.0
TITLE SCALE UNIT
SNT-6A-A-Land Recommendation
PG006-A-L-SD-3.0
Seiko Instruments Inc.
information described herein subject change without notice. Seiko Instruments Inc. responsible problems caused circuits diagrams described herein whose related industrial properties, patents, other rights belong third parties. application circuit examples explain typical applications products, guarantee success specific mass-production design. When products described herein regulated products subject Wassenaar Arrangement other agreements, they exported without authorization from appropriate governmental authority. information described herein other purposes and/or reproduction copying without express permission Seiko Instruments Inc. strictly prohibited. products described herein cannot used part device equipment affecting human body, such exercise equipment, medical equipment, security systems, equipment, apparatus installed airplanes other vehicles, without prior written permission Seiko Instruments Inc. Although Seiko Instruments Inc. exerts greatest possible effort ensure high quality reliability, failure malfunction semiconductor products occur. user these products should therefore give thorough consideration safety design, including redundancy, fire-prevention measures, malfunction prevention, prevent accidents, fires, community damage that ensue.
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