S-8261 Series S-8261 series lithium-ion lithium polymer rechargea
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BATTERY PROTECTION SINGLE-CELL PACK
S-8261 Series
S-8261 series lithium-ion lithium polymer rechargeable battery protection incorporating high-accuracy voltage detection circuit delay circuit. S-8261 series suitable protection single-cell lithium ion/lithium polymer battery packs from overcharge, overdischarge overcurrent.
Features
Accuracy: (+25 Overcharge hysteresis voltage Accuracy: overcharge hysteresis voltage selected from range step. Overdischarge detection voltage (applicable step) Accuracy: Overdischarge hysteresis voltage Accuracy: overdischarge hysteresis voltage selected from range step. Overcurrent detection voltage 0.05 (applicable step) Accuracy: Overcurrent detection voltage (fixed) Accuracy: ±100 High voltage device used charger connection pins pins: absolute maximum rating Delay times (overcharge: tCU, overdischarge: tDL, overcurrent tlOV1, overcurrent tlOV2) generated internal circuit. external capacitor necessary. Accuracy: ±20% Three-step overcurrent detection circuit included (overcurrent overcurrent load short-circuiting). battery charge function "Available" "Unavailable" selectable. Power-down function "Yes" "No" selectable. Charger detection function abnormal charge current detection function overdischarge hysteresis released detecting negative voltage (-0.7 typ.) (Charger detection function). When output voltage high voltage equal lower than charger detection voltage (-0.7 typ.), output voltage goes (Abnormal charge current detection function). current consumption Operation mode typ., max. Power-down mode max. Wide operating temperature range (10) Small package SOT-23-6, 6-Pin SNB(B) (11) Lead-free products Overcharge release voltage Overcharge detection voltage Overcharge hysteresis voltage (where overcharge release voltage prohibited.) Overdischarge release voltage Overdischarge detection voltage Overdischarge hysteresis voltage (where overdischarge release voltage prohibited.) Internal high accuracy voltage detection circuit Overcharge detection voltage (applicable step)
Applications
Lithium-ion rechargeable battery packs Lithium polymer rechargeable battery packs
Packages
Package name SOT-23-6 6-Pin SNB(B) Package MP006-A BD006-A Drawing code Tape MP006-A BD006-A Reel MP006-A BD006-A
Seiko Instruments Inc.
BATTERY PROTECTION SINGLE-CELL PACK S-8261 Series Block Diagram
Output control circuit battery charge circuit battery charge inhibition circuit Oscillator control circuit
Divider control circuit
Charger detection circuit RVMD
Overcurrent detection comparator
Overcharge detection comparator
RVMS
Overcurrent detection comparator
Overdischarge detection comparator
Load short-circuiting detection comparator
Remark diodes shown figure parasitic diodes. Figure
Seiko Instruments Inc.
Rev.4.2_00 Product Name Structure
Product Name
SOT-23-6 Package S-8261A
BATTERY PROTECTION SINGLE-CELL PACK S-8261 Series
direction tape specifications*1 SOT-23-6 Product name (abbreviation)*2 Package name (abbreviation) SOT-23-6 Serial code Assigned from alphabetical order
Refer taping specifications. Refer Product Name List. 6-Pin SNB(B) Package S-8261A direction tape specifications*1 6-Pin SNB(B) Product name (abbreviation)*2 Package name (abbreviation) 6-Pin SNB(B) Serial code Assigned from alphabetical order Refer taping specifications. Refer Product Name List.
Seiko Instruments Inc.
BATTERY PROTECTION SINGLE-CELL PACK S-8261 Series
Product Name List
SOT-23-6 Table Overcharge Overcharge Overdischarge Overdischarge Overcurrent detection hysteresis detection hysteresis detection voltage voltage voltage voltage voltage VIOV1 4.280 4.280 4.325 4.300 4.300 4.275 4.280 4.325 4.280 4.280 4.300 4.275 4.350 4.280 4.350 4.275 4.300 4.275 4.280 4.100 4.275 4.280 4.300 4.200 4.275 4.280 4.280 4.275 4.325 4.280 4.250 4.350 3.900 4.280 4.465 4.250 4.325 0.20 0.20 0.25 0.10 0.10 0.10 0.20 0.25 0.20 0.20 0.10 0.10 0.10 0.25 0.20 0.20 0.20 0.20 0.20 0.25 0.20 0.20 0.20 0.10 0.20 0.10 0.20 0.10 0.25 0.20 0.20 0.25 0.10 0.20 0.30 0.20 0.20 2.30 2.30 2.50 2.30 2.30 2.30 2.30 2.50 2.30 2.30 2.30 2.30 2.30 2.50 2.50 2.30 2.30 2.30 3.00 2.50 2.30 2.80 2.30 2.80 2.50 2.50 3.00 2.30 2.50 2.30 2.60 2.30 2.00 2.30 2.10 2.40 3.00 0.16 0.08 0.15 0.08 0.20 0.10 0.13 0.10 0.10 0.15 0.08 0.10 0.10 0.10 0.20 0.13 0.13 0.20 0.08 0.15 0.05 0.10 0.06 0.15 0.15 0.18 0.08 0.10 0.15 0.13 0.12 0.25 0.10 0.10 0.15 0.10 0.06 battery charge function Available Available Unavailable Unavailable Unavailable Available Unavailable Unavailable Available Unavailable Available Available Available Unavailable Available Available Available Unavailable Available Unavailable Unavailable Available Available Unavailable Unavailable Unavailable Available Available Unavailable Unavailable Unavailable Available Available Available Available Available Unavailable
Model S-8261AAGMD-G2GT2G S-8261AAHMD-G2HT2G S-8261AAJMD-G2JT2G S-8261AALMD-G2LT2G S-8261AAMMD-G2MT2G S-8261AANMD-G2NT2G S-8261AAOMD-G2OT2G S-8261AAPMD-G2PT2G S-8261AARMD-G2RT2G S-8261AASMD-G2ST2G S-8261AATMD-G2TT2G S-8261AAUMD-G2UT2G S-8261AAXMD-G2XT2G S-8261AAZMD-G2ZT2G S-8261ABAMD-G3AT2G S-8261ABBMD-G3BT2G S-8261ABCMD-G3CT2G S-8261ABIMD-G3IT2G S-8261ABJMD-G3JT2G S-8261ABKMD-G3KT2G S-8261ABLMD-G3LT2G S-8261ABMMD-G3MT2G S-8261ABNMD-G3NT2G S-8261ABPMD-G3PT2G S-8261ABRMD-G3RT2G S-8261ABSMD-G3ST2G S-8261ABTMD-G3TT2G S-8261ABYMD-G3YT2G S-8261ABZMD-G3ZT2G S-8261ACAMD-G4AT2G S-8261ACBMD-G4BT2G S-8261ACDMD-G4DT2G S-8261ACEMD-G4ET2G S-8261ACFMD-G4FT2G S-8261ACHMD-G4HT2G S-8261ACIMD-G4IT2G S-8261ACMMD-G4MT2G
Delay time combi*1 nation (10) (11)
Power down function
Refer Table about details delay time combinations (11). Remark Please contact sales office products with detection voltage value other than those specified above.
Seiko Instruments Inc.
BATTERY PROTECTION SINGLE-CELL PACK S-8261 Series
6-Pin SNB(B) Table Overcharge Overcharge Overdischarge Overdischarge Overcurrent detection hysteresis detection hysteresis detection voltage voltage voltage voltage voltage VIOV1 4.280 4.280 4.325 4.280 4.280 4.300 4.305 4.300 4.280 4.275 4.275 4.275 4.280 4.275 4.280 4.280 0.20 0.20 0.25 0.20 0.20 0.20 0.30 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20 2.30 2.30 2.50 2.30 2.30 2.30 2.30 2.30 2.30 2.30 2.30 2.30 3.00 2.30 2.30 2.80 0.16 0.08 0.15 0.10 0.15 0.13 0.10 0.13 0.13 0.10 0.10 0.20 0.08 0.05 0.04 0.10 battery charge function Available Available Unavailable Available Unavailable Available Available Available Available Available Unavailable Unavailable Available Unavailable Available Available Delay time combi*1 nation Power down function
Model S-8261AAGBD-G2G-TF S-8261AAHBD-G2H-TF S-8261AAJBD-G2J-TF S-8261AARBD-G2R-TF S-8261AASBD-G2S-TF S-8261AAVBD-G2V-TF S-8261AAYBD-G2Y-TF S-8261ABCBD-G3C-TF S-8261ABDBD-G3D-TF S-8261ABEBD-G3E-TF S-8261ABGBD-G3G-TF S-8261ABIBD-G3I-TF S-8261ABJBD-G3J-TF S-8261ABLBD-G3L-TF S-8261ABOBD-G3O-TF S-8261ACCBD-G4C-TF
Refer Table about details delay time combinations (11). Remark Please contact sales office products with detection voltage value other than those specified above.
Seiko Instruments Inc.
BATTERY PROTECTION SINGLE-CELL PACK S-8261 Series
Table Delay time combination (10) (11) Overcharge detection delay time 1.84 Overdischarge detection delay time Overcurrent detection delay time tlOV1 Overcurrent detection delay time tlOV2 2.24 2.24 2.24 2.24 1.12 2.24 2.24 1.12 Load short-circuiting detection delay time tSHORT
Remark delay times changed within range listed Table details, please contact sales office. Table Delay time Symbol Selection range Overcharge detection delay time 0.15 Overdischarge detection delay time Overcurrent detection delay time tlOV1 Overcurrent detection delay time tlOV1 1.12 2.24 Load short-circuiting detection delay time tSHORT Remark value surrounded bold lines delay time standard products. Remarks Choose from left. Choose from left. Choose from left. Choose from left. Choose from left.
Seiko Instruments Inc.
Rev.4.2_00 Configurations
SOT-23-6 view
BATTERY PROTECTION SINGLE-CELL PACK S-8261 Series
Table Symbol Description gate control discharge (CMOS output) Voltage detection between (Overcurrent detection pin) gate control charge (CMOS output) Test delay time measurement Positive power input Negative power input
Figure
6-Pin SNB(B) view
Table Symbol Description gate control charge (CMOS output) Voltage detection between (Overcurrent detection pin) gate control discharge (CMOS output) Negative power input Test delay time measurement Positive power input
Bottom view
Connect heatsink back side shadowed area board, electric potential open VDD. However, function electrode.
Figure
Seiko Instruments Inc.
BATTERY PROTECTION SINGLE-CELL PACK S-8261 Series Absolute Maximum Ratings
Table Item Symbol Applied
unless otherwise specified) Absolute Maximum Ratings Unit physical
Input voltage between -0.3 Input voltage +0.3 Output voltage -0.3 VDD+0.3 Output voltage -0.3 +0.3 Power dissipation SOT-23-6 6-pin SNB(B) Operating temperature range Topr Storage temperature range Tstg +125 Caution absolute maximum ratings rated values exceeding which product could suffer damage. These values must therefore exceeded under conditions.
Power dissipation (PD) [mW]
SOT-23-6
6-Pin SNB(B)
Ambient temperature (Ta) [°C]
Figure
Power Dissipation Packages (When Mounted Printed Circuit Board)
Seiko Instruments Inc.
Rev.4.2_00 Electrical Characteristics
BATTERY PROTECTION SINGLE-CELL PACK S-8261 Series
Except Detection Delay Time
Table Item DETECTION VOLTAGE Overcharge detection voltage Step °C*1 -0.025 -0.030 -0.025 -0.050 -0.050 VIOV1 -0.015 -1.0 +0.025 +0.030 +0.025 +0.050 +0.050 VIOV1 +0.015 -0.4 Symbol Condition Min. unless otherwise specified) Test Test Typ. Max. Unit Condition Circuit
Overcharge hysteresis voltage Step Overdischarge detection voltage Step Overdischarge hysteresis voltage Step Overcurrent detection voltage VIOV1 VIOV1 VIOV1 0.05 Step Overcurrent detection voltage VIOV2 Load short-circuiting detection voltage VSHORT Charger detection voltage VCHA -0.7 INPUT VOLTAGE, OPERATION VOLTAGE Operation voltage between VDSOP1 Internal circuit operating voltage Operation voltage between VDSOP2 Internal circuit operating voltage CURRENT CONSUMPTION (with power-down function) Current consumption normal operation IOPE Current consumption power down IPDN CURRENT CONSUMPTION (without power-down function) Current consumption normal operation IOPE Overdischarge current consumption IOPED OUTPUT RESISTANCE resistance RCOH resistance RCOL resistance RDOH resistance RDOL INTERNAL RESISTANCE Internal resistance between RVMD Internal resistance between RVMS BATTERY CHARGING FUNCTION battery charge starting charger voltage V0CHA battery charging available battery charge inhibition battery voltage V0INH battery charging unavailable Since products screened high temperatures, specification this temperature range design, tested production.
guaranteed
Seiko Instruments Inc.
BATTERY PROTECTION SINGLE-CELL PACK S-8261 Series
Except Detection Delay Time (-40 °C*1)
Table
°C*1 unless otherwise specified) Item Symbol Condition Min. -0.055 -0.025 -0.080 -0.050 VIOV1 -0.021 0.37 -1.2 Typ. Max. +0.040 +0.025 +0.080 +0.050 VIOV1 +0.021 0.63 -0.2 1310 Unit Test Test Condition Circuit
DETECTION VOLTAGE Overcharge detection voltage Step Overcharge hysteresis voltage Step Overdischarge detection voltage Step Overdischarge hysteresis voltage Step Overcurrent detection voltage VIOV1 VIOV1 0.05 Step Overcurrent detection voltage VIOV2 Load short-circuiting detection voltage VSHORT Charger detection voltage VCHA INPUT VOLTAGE, OPERATION VOLTAGE Operation voltage between VDSOP1 Internal circuit operating voltage Operation voltage between VDSOP2 Internal circuit operating voltage [CURRENT CONSUMPTION] with power-down function Current consumption normal operation IOPE Current consumption power down IPDN [CURRENT CONSUMPTION] without power-down function Current consumption normal operation IOPE Overdischarge current consumption IOPED OUTPUT RESISTANCE resistance RCOH resistance RCOL resistance RDOH resistance RDOL INTERNAL RESISTANCE Internal resistance between RVMD Internal resistance between RVMS BATTERY CHARGING FUNCTION battery charge starting charger voltage V0CHA battery charge inhibition battery voltage V0INH Since products screened high design, tested production.
VIOV1 -0.7
battery charging available battery charging unavailable temperatures, specification this temperature range guaranteed
Seiko Instruments Inc.
Detection Delay Time
BATTERY PROTECTION SINGLE-CELL PACK S-8261 Series
S-8261AAG, S-8261AAH, S-8261AAJ, S-8261AAL, S-8261AAM, S-8261AAN, S-8261AAO, S-8261AAP, S-8261AAR, S-8261AAZ, S-8261ABB, S-8261ABC, S-8261ABE, S-8261ABJ, S-8261ABK, S-8261ABM, S-8261ABN, S-8261ABO, S-8261ABP, S-8261ABR, S-8261ABS, S-8261ACB, S-8261ACC, S-8261ACE, S-8261ACI, S-8261ACM Table Item Symbol Condition Min. Typ. Max. Unit Test Test Condition Circuit
DELAY TIME 25°C) Overcharge detection delay time 0.96 Overdischarge detection delay time Overcurrent detection delay time tlOV1 Overcurrent detection delay time tlOV2 2.24 Load short-circuiting detection delay time tSHORT DELAY TIME +85°C) Overcharge detection delay time Overdischarge detection delay time Overcurrent detection delay time tlOV1 Overcurrent detection delay time tlOV2 2.24 Load short-circuiting detection delay time tSHORT Since products screened high temperatures, specification this temperature range guaranteed design, tested production. S-8261AAS Table Item Symbol Condition Min. Typ. Max. Unit Test Test Condition Circuit
DELAY TIME 25°C) Overcharge detection delay time 0.96 Overdischarge detection delay time Overcurrent detection delay time tlOV1 Overcurrent detection delay time tlOV2 2.24 Load short-circuiting detection delay time tSHORT DELAY TIME +85°C) Overcharge detection delay time Overdischarge detection delay time Overcurrent detection delay time tlOV1 Overcurrent detection delay time tlOV2 2.24 Load short-circuiting detection delay time tSHORT Since products screened high temperatures, specification this temperature range guaranteed design, tested production.
Seiko Instruments Inc.
BATTERY PROTECTION SINGLE-CELL PACK S-8261 Series
S-8261AAT Table Item Symbol Condition Min. Typ. Max. Unit Test Test Condition Circuit
DELAY TIME 25°C) Overcharge detection delay time Overdischarge detection delay time Overcurrent detection delay time tlOV1 Overcurrent detection delay time tlOV2 Load short-circuiting detection delay time tSHORT DELAY TIME +85°C) Overcharge detection delay time Overdischarge detection delay time Overcurrent detection delay time tlOV1 Overcurrent detection delay time tlOV2 Load short-circuiting detection delay time tSHORT Since products screened high temperatures, specification this temperature range guaranteed design, tested production. S-8261AAU, S-8261AAX, S-8261ABA Table Item Symbol Condition Min. Typ. Max. Unit Test Test Condition Circuit
DELAY TIME 25°C) Overcharge detection delay time Overdischarge detection delay time Overcurrent detection delay time tlOV1 Overcurrent detection delay time tlOV2 2.24 Load short-circuiting detection delay time tSHORT DELAY TIME +85°C) Overcharge detection delay time Overdischarge detection delay time Overcurrent detection delay time tlOV1 Overcurrent detection delay time tlOV2 2.24 Load short-circuiting detection delay time tSHORT Since products screened high temperatures, specification this temperature range guaranteed design, tested production.
Seiko Instruments Inc.
BATTERY PROTECTION SINGLE-CELL PACK S-8261 Series
S-8261AAV, S-8261AAY Table Item Symbol Condition Min. Typ. Max. Unit Test Test Condition Circuit
DELAY TIME 25°C) Overcharge detection delay time Overdischarge detection delay time Overcurrent detection delay time tlOV1 Overcurrent detection delay time tlOV2 Load short-circuiting detection delay time tSHORT DELAY TIME +85°C) Overcharge detection delay time Overdischarge detection delay time Overcurrent detection delay time tlOV1 Overcurrent detection delay time tlOV2 Load short-circuiting detection delay time tSHORT 1020 Since products screened high temperatures, specification this temperature range guaranteed design, tested production. S-8261ABD Table Item Symbol Condition Min. Typ. Max. Unit Test Test Condition Circuit
DELAY TIME 25°C) Overcharge detection delay time 1.48 1.84 Overdischarge detection delay time Overcurrent detection delay time tlOV1 5.76 Overcurrent detection delay time tlOV2 2.88 4.32 Load short-circuiting detection delay time tSHORT DELAY TIME +85°C) Overcharge detection delay time 1.11 1.84 2.89 Overdischarge detection delay time 68.9 182.3 Overcurrent detection delay time tlOV1 4.31 11.59 Overcurrent detection delay time tlOV2 2.16 5.68 Load short-circuiting detection delay time tSHORT Since products screened high temperatures, specification this temperature range guaranteed design, tested production.
Seiko Instruments Inc.
BATTERY PROTECTION SINGLE-CELL PACK S-8261 Series
S-8261ABG, S-8261ABI, S-8261ABL, S-8261ABT Table Item Symbol Condition Min. Typ. Max. Unit Test condition Test circuit
DELAY TIME 25°C) Overcharge detection delay time 0.96 Overdischarge detection delay time Overcurrent detection delay time tlOV1 Overcurrent detection delay time tlOV2 2.24 Load short-circuiting detection delay time tSHORT DELAY TIME +85°C) Overcharge detection delay time Overdischarge detection delay time Overcurrent detection delay time tlOV1 Overcurrent detection delay time tlOV2 2.24 Load short-circuiting detection delay time tSHORT Since products screened high temperatures, specification this temperature range guaranteed design, tested production. S-8261ABY, S-8261ABZ, S-8261ACA Table Item Symbol Condition Min. Typ. Max. Unit Test Test Condition Circuit
DELAY TIME 25°C) Overcharge detection delay time 0.96 Overdischarge detection delay time Overcurrent detection delay time tlOV1 Overcurrent detection delay time tlOV2 0.89 1.12 1.35 Load short-circuiting detection delay time tSHORT DELAY TIME +85°C) Overcharge detection delay time Overdischarge detection delay time Overcurrent detection delay time tlOV1 Overcurrent detection delay time tlOV2 0.61 1.12 1.91 Load short-circuiting detection delay time tSHORT Since products screened high temperatures, specification this temperature range guaranteed design, tested production.
Seiko Instruments Inc.
BATTERY PROTECTION SINGLE-CELL PACK S-8261 Series
S-8261ACD Table Item Symbol Condition Min. Typ. Max. Unit Test Test Condition Circuit
DELAY TIME 25°C) Overcharge detection delay time 0.96 Overdischarge detection delay time Overcurrent detection delay time tlOV1 Overcurrent detection delay time tlOV2 2.24 Load short-circuiting detection delay time tSHORT DELAY TIME +85°C) Overcharge detection delay time Overdischarge detection delay time Overcurrent detection delay time tlOV1 Overcurrent detection delay time tlOV2 2.24 Load short-circuiting detection delay time tSHORT Since products screened high temperatures, specification this temperature range guaranteed design, tested production. (10) S-8261ACF Table Item Symbol Condition Min. Typ. Max. Unit Test Test Condition Circuit
DELAY TIME 25°C) Overcharge detection delay time 0.96 Overdischarge detection delay time Overcurrent detection delay time tlOV1 Overcurrent detection delay time tlOV2 2.24 Load short-circuiting detection delay time tSHORT DELAY TIME +85°C) Overcharge detection delay time Overdischarge detection delay time Overcurrent detection delay time tlOV1 Overcurrent detection delay time tlOV2 2.24 Load short-circuiting detection delay time tSHORT Since products screened high temperatures, specification this temperature range guaranteed design, tested production.
Seiko Instruments Inc.
BATTERY PROTECTION SINGLE-CELL PACK S-8261 Series
(11) S-8261ACH Table Item Symbol Condition Min. Typ. Max. Unit Test Test Condition Circuit
DELAY TIME 25°C) Overcharge detection delay time 0.24 0.36 Overdischarge detection delay time Overcurrent detection delay time tlOV1 Overcurrent detection delay time tlOV2 0.89 1.12 1.35 Load short-circuiting detection delay time tSHORT DELAY TIME +85°C) Overcharge detection delay time 0.17 0.51 Overdischarge detection delay time Overcurrent detection delay time tlOV1 Overcurrent detection delay time tlOV2 0.61 1.12 1.91 Load short-circuiting detection delay time tSHORT Since products screened high temperatures, specification this temperature range guaranteed design, tested production.
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Rev.4.2_00 Test Circuits
Caution
BATTERY PROTECTION SINGLE-CELL PACK S-8261 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 Hysteresis Voltage) overcharge detection voltage (VCU) defined voltage between which goes from when voltage gradually increased from starting condition overcharge hysteresis voltage (VHC) then defined difference between overcharge detection voltage (VCU) voltage between which goes from when voltage gradually decreased. Test Condition Test Circuit (Overdischarge Detection Voltage, Overdischarge Hysteresis Voltage) overdischarge detection voltage (VDL) defined voltage between which goes from when voltage gradually decreased from starting condition overdischarge hysteresis voltage (VHD) then defined difference between overdischarge detection voltage (VDL) voltage between which goes from when voltage gradually increased. Test Condition Test Circuit (Overcurrent Detection Voltage, Overcurrent Detection Voltage, Load Short-Circuiting Detection Voltage) overcurrent detection voltage (VIOV1) defined voltage between whose delay time changing from lies between minimum maximum value overcurrent detection delay time when voltage increased rapidly (within from starting condition overcurrent detection voltage (VIOV2) defined voltage between whose delay time changing from lies between minimum maximum value overcurrent detection delay time when voltage increased rapidly (within from starting condition load short-circuiting detection voltage (VSHORT) defined voltage between whose delay time changing from lies between minimum maximum value load short-circuiting detection delay time when voltage increased rapidly (within from starting condition Test Condition Test Circuit (Charger Detection Voltage, Abnormal Charge Current Detection Voltage) charger detection voltage (VCHA) defined voltage between which goes from when voltage gradually decreased from after voltage gradually increased from starting condition until voltage becomes (VHD charger detection voltage measured only product whose overdischarge hysteresis Decrease from gradually. voltage between when 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) products with power-down function operating current consumption (IOPE) current that flows through (IDD) under conditions (Normal condition). power-down current consumption (IPDN) current that flows through (IDD) under conditions (Overdischarge condition). products without power-down function operating current consumption (IOPE) current that flows through (IDD) under conditions (Normal condition). Overdischarge current consumption (IOPED) current that flows through (IDD) under conditions (Overdischarge condition).
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BATTERY PROTECTION SINGLE-CELL PACK S-8261 Series
Test Condition Test Circuit (Internal Resistance between VDD, Internal Resistance between VSS) resistance between (RVMD) internal resistance between under conditions resistance between (RVMS) internal resistance between under conditions Test Condition Test Circuit Resistance "H", Resistance "L") resistance (RCOH) resistance under condition resistance (RCOL) resistance under condition Test Condition Test Circuit Resistance "H", Resistance "L") resistance (RDOH) resistance under condition resistance (RDOL) resistance under condition Test Condition Test Circuit (Overcharge Detection Delay Time, Overdischarge Detection Delay Time) overcharge detection delay time (tCU) time needed change from just after voltage momentarily increases (within from overcharge detection voltage (VCU) overcharge detection voltage (VCU) under condition overdischarge detection delay time (tDL) time needed change from just after voltage momentarily decreases (within from overdischarge detection voltage (VDL) +0.2 overdischarge detection voltage (VDL) under condition (10) Test Condition Test Circuit (Overcurrent Detection Delay Time, Overcurrent Detection Delay Time, Load Short-circuiting Detection Delay Time, Abnormal Charge Current Detection Delay Time) overcurrent detection delay time (tIOV1) time needed after voltage momentarily increases (within from 0.35 under condition V2=0 overcurrent detection delay time (tIOV2) time needed after voltage momentarily increases (within from under condition load short-circuiting detection delay time (tSHORT) time needed after voltage momentarily increases (within from under condition abnormal charge current detection delay time time needed from after voltage momentarily decreases (within from -1.1 under condition abnormal charge current detection delay time same value overcharge detection delay time. (11) Test Condition Test Circuit (Product with battery charge function) Battery Charge Starting Charger Voltage) battery charge starting charger voltage (V0CHA) defined voltage between which goes (VVM higher) when voltage gradually decreased from starting condition (12) Test Condition Test Circuit (Product with battery charge inhibition function) Battery Charge Inhibition Battery Voltage) battery charge inhibition battery voltage (V0INH) defined voltage between which goes (VVM higher) when voltage gradually increased from starting condition
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BATTERY PROTECTION SINGLE-CELL PACK S-8261 Series
S-8261 Series
S-8261 Series
Test Circuit
Test Circuit
S-8261 Series
S-8261 Series
Test Circuit
Test Circuit
S-8261 Series
Oscilloscope
Oscilloscope
Test Circuit Figure
Seiko Instruments Inc.
BATTERY PROTECTION SINGLE-CELL PACK S-8261 Series Operation
Remark Refer Battery Protection Connection Example".
Normal Condition
S-8261 Series monitors voltage battery connected between voltage difference between 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), turns both charging discharging control FETs This condition called normal condition, this condition charging discharging carried freely. Caution When battery connected first time, discharging enabled. case, short connect charger restore normal condition. this
Overcurrent Condition (Detection Overcurrent Overcurrent Load Short-circuiting)
When battery normal status status where voltage equal higher than overcurrent detection voltage because discharge current higher than specified value status lasts overcurrent detection delay time, discharge control turned discharging stopped. This status called overcurrent status. overcurrent status, pins shorted resistor between (RVMS) However, voltage potential load long load connected. When load disconnected, returns potential. This detects status when impedance between (Refer Figure increases equal impedance that enables automatic restoration voltage returns overcurrent detection voltage (VIOV1) lower overcurrent status restored normal status. Caution impedance that enables automatic restoration varies depending battery voltage value overcurrent detection voltage.
Overcharge Condition When battery voltage becomes higher than overcharge detection voltage (VCU) during charging under normal condition detection continues overcharge detection delay time (tCU) longer, S-8261 Series turns charging control stop charging. This condition called overcharge condition.
overcharge condition released following cases ((1) (2)): When battery voltage falls below overcharge release voltage (VCU) overcharge detection hysteresis voltage (VHC), S-8261 Series turns charging control turns normal condition. When load connected discharging starts, S-8261 Series turns charging control returns normal condition. Just after load connected discharging starts, discharging current flows through parasitic diode charging control FET. this moment potential becomes voltage parasitic diode, higher than level. When battery voltage goes under overcharge detection voltage (VCU) provided that voltage higher than overcurrent detection voltage, S-8261 Series releases overcharge condition. Caution battery charged voltage higher than overcharge detection voltage (VCU) battery voltage does fall below overcharge detection voltage (VCU) even when heavy load connected, detection overcurrent overcurrent load short-circuiting function until battery voltage falls below overcharge detection voltage (VCU). Since actual battery internal impedance several dozens battery voltage drops immediately after heavy load that causes overcurrent connected, detection overcurrent overcurrent load short-circuiting function. When charger connected after overcharge detection, overcharge condition released even battery voltage below overcharge release voltage (VCL). overcharge condition released when voltage goes over charger detection voltage (VCHA) removing charger.
Seiko Instruments Inc.
Overdischarge Condition
BATTERY PROTECTION SINGLE-CELL PACK S-8261 Series
products with power-down function When battery voltage falls below overdischarge detection voltage (VDL) during discharging under normal condition detection continues overdischarge detection delay time (tDL) longer, S-8261 Series turns discharging control stop discharging. This condition called overdischarge condition. When discharging control turned off, voltage pulled resistor between (RVMD). When voltage difference between then (typ.) lower, current consumption reduced power-down current consumption (IPDN). This condition called power-down condition. power-down condition released when charger connected voltage difference between becomes (typ.) higher. Moreover when battery voltage becomes overdischarge detection voltage (VDL) higher, S-8261 Series turns discharging returns normal condition. products without power-down function When battery voltage falls below overdischarge detection voltage (VDL) during discharging under normal condition detection continues overdischarge detection delay time (tDL) longer, S-8261 Series turns discharging control stop discharging. This condition called overdischarge condition. When discharging control turned off, voltage pulled resistor between (RVMD). When battery voltage becomes overdischarge detection voltage (VDL) higher, S-8261 Series turns discharging returns normal condition.
Charger Detection
When battery overdischarge condition connected charger provided that voltage lower than charger detection voltage (VCHA), S-8261 Series releases overdischarge condition turns discharging control when battery voltage becomes equal higher than overdischarge detection voltage (VDL) since charger detection function works. This action called charger detection. When battery overdischarge condition connected charger provided that voltage lower than charger detection voltage (VCHA), S-8261 Series releases overdischarge condition when battery voltage reaches overdischarge detection voltage (VDL) overdischarge hysteresis (VHD) higher.
Abnormal Charge Current Detection
voltage falls below charger detection voltage (VCHA) during charging under normal condition continues overcharge detection delay time (tCU) longer, charging control turns charging stops. This action called abnormal charge current detection. Abnormal charge current detection works when voltage voltage falls below charger detection voltage (VCHA). Consequently, abnormal charge current flows over-discharged battery, S-8261 Series turns charging control stops charging after battery voltage becomes higher than overdischarge detection voltage which make voltage "H", still after overcharge detection delay time (tCU) elapses. Abnormal charge current detection released when voltage difference between becomes less than charger detection voltage (VCHA).
Seiko Instruments Inc.
BATTERY PROTECTION SINGLE-CELL PACK S-8261 Series
Delay Circuits
detection delay times determined dividing clock approximately with counter. Remark detection delay time overcurrent (tIOV2) load short-circuiting (tSHORT) start when overcurrent (VIOV1) detected. When overcurrent (VIOV2) load short-circuiting (VSHORT) detected over detection delay time each them tIOV2 tSHORT) after detection overcurrent (VIOV1), S-8261 Series turns within tIOV2 tSHORT each detection.
Overcurrent detection delay time (tIOV2) VIOV2 VIOV1 Time tIOV2 Time
Figure products with power-down function When overcurrent detected continues longer than overdischarge detection delay time (tDL) without releasing load, condition changes power-down condition when battery voltage falls below overdischarge detection voltage (VDL). When battery voltage falls below overdischarge detection voltage (VDL) overcurrent, S-8261 Series turns discharging control overcurrent detection. this case recovery battery voltage slow that battery voltage after overdischarge detection delay time (tDL) still lower than overdischarge detection voltage (VDL), S-8261 Series shifts power-down condition. products without power-down function When overcurrent detected continues longer than overdischarge detection delay time (tDL) without released load, condition changes overdischarge condition when battery voltage falls below overdischarge detection voltage (VDL).When battery voltage falls below overdischarge detection voltage (VDL) overcurrent, S-8261 Series turns discharging control overcurrent detection. this case, recovery battery voltage slow that battery voltage after overdischarge detection delay time (tDL) still lower than overdischarge detection voltage (VDL), S-8261 Series shifts overdischarge condition.
Seiko Instruments Inc.
BATTERY PROTECTION SINGLE-CELL PACK S-8261 Series
test delay time measurement should open actual application. capacitor whose capacitance larger than 1000 resistor whose resistance less than connected this pin, error occur delay times detection voltages.
Battery Charging Function "Available"
This function used recharge connected battery whose voltage self-discharge. When battery charge starting charger voltage (V0CHA) higher applied between connecting charger, charging control gate fixed voltage. 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. When battery voltage becomes equal higher than overdischarge detection voltage (VDL) overdischarge hysteresis voltage (VHD), S-8261 Series enters normal condition. Caution Some battery providers recommend charging completely self-discharged battery. Please battery providers before determine whether enable inhibit battery charging function. battery charge function higher priority than abnormal charge current detection function. Consequently, product with battery charging function enabled charges battery forcibly abnormal charge current cannot detected when battery voltage low.
Remark
Battery Charging Function "Unavailable"
This function inhibits recharging when battery that short-circuited battery) internally connected. When battery voltage battery charge inhibition battery voltage (V0INH) lower, charging control gate fixed voltage inhibit charging. When battery voltage battery charge inhibition battery voltage (V0INH) higher, charging performed. Caution Some battery providers recommend charging completely self-discharged battery. battery providers before determining battery charging function. Please
Seiko Instruments Inc.
BATTERY PROTECTION SINGLE-CELL PACK S-8261 Series Timing Chart
Overcharge Overdischarge Detection
VCU-VHC VDL+VHD
Battery voltage
VIOV1 VCHA Charger connection Load connection Overcharge detection delay time (tCU) Mode Overdischarge detection delay time (tDL)
Remark Normal condition, Overcharge condition, Overdischarge condition, Overcurrent condition charger supposed charge with constant current.
Figure Overcurrent Detection
Battery voltage VCU-VHC VDL+VHD
VSHORT VIOV2 VIOV1 Charger connection Load connection Overcurrent detection delay time (tIOV1) Mode Overcurrent detection delay time (tIOV2) Load short-circuiting detection delay time (tSHORT)
Remark Normal condition, Overcharge condition, Overdischarge condition, Overcurrent condition charger supposed charge with constant current.
Figure
Seiko Instruments Inc.
BATTERY PROTECTION SINGLE-CELL PACK S-8261 Series
Charger Detection
VCU-VHC VDL+VHD
Battery voltage
VCHA
Charger connection Load connection Overdischarge detection delay time (tDL) Mode case voltage VCHA Overdischarge released overdischarge detection voltage (VDL)
Remark Normal condition, Overcharge condition, Overdischarge condition, Overcurrent condition charger supposed charge with constant current.
Figure Abnormal Charge Current Detection
VCU-VHC VDL+VHD
Battery voltage
VCHA Charger connection Load connection Abnormal charging current detection delay time Overdischarge detection delay time (tDL) Mode Overcharge detection delay time (tCU))
Remark Normal condition, Overcharge condition, Overdischarge condition, Overcurrent condition charger supposed charge with constant current.
Figure
Seiko Instruments Inc.
BATTERY PROTECTION SINGLE-CELL PACK S-8261 Series Battery Protection Connection Example
Battery
S-8261 Series
FET1
FET2
Figure Table
Symbol FET1 FET2 Part N-channel N-channel Resistor Purpose Discharge control Charge control Typ.
Constant External Components
Min. Max. Remarks Threshold voltage Overdischarge detection voltage Gate source withstanding voltage Charger voltage Threshold voltage Overdischarge detection voltage Gate source withstanding voltage Charger voltage Resistance should small possible avoid lowering overcharge detection accuracy caused current. Install capacitor 0.022 higher between VSS. Select resistance large possible prevent large current when charger connected reverse.
**2.
protection, power fluctuation Capacitor power fluctuation 0.022 Protection reverse Resistor connection charger threshold voltage low, charging current. with threshold voltage equal higher than overdischarge detection voltage used, discharging stopped before overdischarge detected. withstanding voltage between gate source lower than charger voltage, destroyed. high resistance, voltage between exceed absolute maximum rating when charger connected reverse since current flows from charger Insert resistor higher protection. capacitor less than 0.022 connected oscillate when load short-circuiting detected. sure connect capacitor 0.022 higher resistance higher than charging current when high-voltage charger connected.
Caution above constants changed without notice. should open. been confirmed whether operation normal circuits other than above example connection. addition, example connection shown above constant guarantee proper operation. Perform through evaluation using actual application constant.
Seiko Instruments Inc.
Rev.4.2_00 Precautions
BATTERY PROTECTION SINGLE-CELL PACK S-8261 Series
application conditions input voltage, output voltage, load current should exceed package power dissipation. 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 SINGLE-CELL PACK S-8261 Series Characteristics (Typical Data)
Detection Release Voltage Temperature Characteristics
Overcharge detection voltage temperature
4.44 4.42
Overcharge release voltage temperature
4.02 4.00
4.38 4.36 4.34 [°C]
4.40
3.98 3.96 3.94 3.92 [°C]
Overdischarge detection voltage temperature
3.04 3.02
Overdischarge release voltage temperature
3.44 3.42
[°C]
3.00 2.98 2.96 2.94
3.40 3.38 3.36 3.34 [°C]
Overcurrent detection voltage temperature
0.45 0.40 0.35 0.30 0.25 0.20
Overcurrent detection voltage temperature
0.65 0.60
VIOV1
VIOV2
0.55 0.50 0.45
0.15
[°C]
0.40
[°C]
Load short-circuiting detection voltage vs.temperature
VSHORT
[°C]
Seiko Instruments Inc.
BATTERY PROTECTION SINGLE-CELL PACK S-8261 Series
Current Consumption Temperature Characteristics
Current consumption temperature normal mode
Current consumption temperature power-down mode
0.10 0.08
IOPE [µA]
[°C]
IPDN [µA]
0.06 0.04 0.02 [°C]
Current Consumption Power Voltage Characteristics 25°C)
Current consumption power supply voltage dependency
IOPE [µA]
Detection Release Delay Time Temperature Characteristics
Overcharge detection delay time temperature
1.50 1.25 1.00 0.75
Overcharge release delay time temperature
[ms]
0.50
[°C]
[°C]
Overdischarge detection delay time temperature
[ms]
[°C]
Seiko Instruments Inc.
BATTERY PROTECTION SINGLE-CELL PACK S-8261 Series
Overcurrent detection delay time temperature
Overcurrent detection delay time temperature
tIOV1 [ms]
tIOV2 [ms] [°C]
[°C]
Load short-circuiting delay time temperature
0.40 0.36 0.32 0.28 0.24 0.20
tSHORT [ms]
0.16
[°C]
Delay Time Power-Voltage Characteristics 25°C)
Overcurrent detection delay time power supply voltage dependency
Overcurrent detection delay time power supply voltage dependency
tIOV1
tIOV2 [ms]
Load short-circuiting delay time power supply voltage dependency
0.32 0.28 0.24
tSHORT [ms]
0.16
Seiko Instruments Inc.
BATTERY PROTECTION SINGLE-CELL PACK S-8261 Series
Output Current Characteristics 25°C)
source current characteristics
-0.5 -0.4
sink current characteristics
[mA]
-0.3 -0.2 -0.1
[mA]
source current characteristics
-0.5 -0.4
sink current characteristics
[mA]
-0.3 -0.2 -0.1
[mA]
Seiko Instruments Inc.
2.9±0.2 1.9±0.2
0.95
0.95
0.15 -0.05
+0.1
0.35±0.15
MP006-A-P-SD-1.1
TITLE SCALE UNIT
SOT236-A-PKG Dimensions MP006-A-P-SD-1.1
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
MP006-A-C-SD-3.1
TITLE SCALE UNIT
SOT236-A-Carrier Tape MP006-A-C-SD-3.1
Seiko Instruments Inc.
12.5max.
Enlarged drawing central part
9.0±0.3
(60°)
(60°)
MP006-A-R-SD-2.1
TITLE SCALE UNIT
SOT236-A-Reel MP006-A-R-SD-2.1
3,000
Seiko Instruments Inc.
R(0.075)
(0.125) 0.8±0.05
0.14±0.05
0.2±0.08 0.5±0.1
0.2±0.08 0.5±0.1
1.8±0.15
heatsink back side different electric potential depending product. Confirm specifications each product. function electrode.
BD006-A-P-SD-3.0
TITLE SCALE UNIT
SNB6B-A-PKG Dimensions BD006-A-P-SD-3.0
Seiko Instruments Inc.
2.0±0.05
4.0±0.1
4.0±0.1
0.25±0.05 1.1±0.1
2.2±0.1
Feed direction
BD006-A-C-SD-2.1
TITLE SCALE UNIT
SNB6B-A-Carrier Tape BD006-A-C-SD-2.1
Seiko Instruments Inc.
12.5max.
9.0±0.3 Enlarged drawing central part
BD006-A-R-SD-1.1
TITLE SCALE UNIT
SNB6B-A-Reel BD006-A-R-SD-1.1
QTY. 3,000
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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