S-8253A/B Series S-8253A/B Series protection 2-serial 3-serial ce
|
|
|
Top Searches for this datasheet
BATTERY PROTECTION 2-SERIAL 3-SERIAL-CELL PACK
S-8253A/B Series
S-8253A/B Series protection 2-serial 3-serial cell lithium-ion rechargeable batteries include high-accuracy voltage detectors delay circuits. These suitable protecting lithium-ion battery packs from overcharge, overdischarge overcurrent.
Features
High-accuracy voltage detection each cell Overcharge detection voltage steps) Overcharge release voltage Overdischarge detection voltage (100 steps) Overdischarge release voltage Three-level overcurrent detection (Including load short circuiting detection) Overcurrent detection voltage 0.05 0.30 steps) Accuracy Overcurrent detection voltage (Fixed) Overcurrent detection voltage (Fixed) Delay times (Overcharge, Overdischarge, Overcurrent) generated internal circuit. unnecessary). Charge discharge operation inhibited control pin. battery charge function available unavailable selectable. High-voltage withstand devices Absolute maximum rating Wide operating voltage range Wide operating temperature range current consumption Operation mode max. (+25 Power-down mode max. (+25 (10) Lead-free products Accuracy Accuracy Accuracy Accuracy ±100
(External capacitors
Overcharge release voltage Overcharge detection voltage Overcharge hysteresis voltage (Overcharge hysteresis voltage selected from range steps.) Overdischarge release voltage Overdischarge detection voltage Overdischarge hysteresis voltage (Overdischarge hysteresis voltage selected from range steps.)
Applications
Lithium-ion rechargeable battery packs Lithium polymer rechargeable battery packs
Package
Package Name 8-Pin TSSOP Package FT008-A Drawing Code Tape FT008-E Reel FT008-E
Seiko Instruments Inc.
BATTERY PROTECTION 2-SERIAL 3-SERIAL-CELL PACK S-8253A/B Series Block Diagrams
S-8253A Series
Oscillator, counter, controller
CTLH CTLM
Remark diodes shown figure parasitic diodes. Figure
Seiko Instruments Inc.
BATTERY PROTECTION 2-SERIAL 3-SERIAL-CELL PACK S-8253A/B Series
S-8253B Series
Oscillator, counter, controller
CTLH CTLM
Remark diodes shown figure parasitic diodes. Figure
Seiko Instruments Inc.
BATTERY PROTECTION 2-SERIAL 3-SERIAL-CELL PACK S-8253A/B Series Product Name Structure
Product Name
S-8253 T8T1
Indicates package type packing specification T8T1 8-Pin TSSOP, Tape Serial code Sequentially from Product series name 2-cell 3-cell Refer taping specifications this book. Refer Product Name List".
Product Name List
Table S-8253A Series (For 2-Serial Cell) Model S-8253AAA-T8T1GZ S-8253AAB-T8T1GZ S-8253AAC-T8T1GZ S-8253AAD-T8T1GZ S-8253AAE-T8T1GZ S-8253AAF-T8T1GZ S-8253AAG-T8T1GZ S-8253AAH-T8T1GZ Overcharge detection voltage 4.350 ±0.025 4.350 ±0.025 4.350 ±0.025 4.250 ±0.025 4.350 ±0.025 4.350 ±0.025 4.280 ±0.025 4.350 ±0.025 Overcharge release voltage 4.050 ±0.050 4.050 ±0.050 4.050 ±0.050 4.050 ±0.050 4.050 ±0.050 4.050 ±0.050 4.080 ±0.050 4.150 ±0.050 Overdischarge detection voltage 2.40 ±0.080 2.70 ±0.080 2.40 ±0.080 2.40 ±0.080 2.80 ±0.080 2.40 ±0.080 2.40 ±0.080 2.30 ±0.080 Overdischarge release voltage 2.70 ±0.100 2.70 ±0.080 2.70 ±0.100 2.70 ±0.100 3.00 ±0.100 2.60 ±0.100 2.70 ±0.100 2.30 ±0.080 Overcurrent detection voltage VIOV1 0.300 ±0.025 0.300 ±0.025 0.080 ±0.025 0.120 ±0.025 0.300 ±0.025 0.300 ±0.025 0.150 ±0.025 0.090 ±0.025 battery charge function Available Available Available Available Available Unavailable Unavailable Available
Remark Please contact marketing department products with detection voltage value other than those specified above. Table S-8253B Series (For 3-Serial Cell) Model S-8253BAA-T8T1GZ S-8253BAB-T8T1GZ S-8253BAC-T8T1GZ S-8253BAD-T8T1GZ S-8253BAE-T8T1GZ S-8253BAF-T8T1GZ S-8253BAG-T8T1GZ S-8253BAH-T8T1GZ S-8253BAI-T8T1GZ Overcharge detection voltage 4.350 ±0.025 4.325 ±0.025 4.350 ±0.025 4.250 ±0.025 4.350 ±0.025 4.280 ±0.025 4.280 ±0.025 4.350 ±0.025 4.350 ±0.025 Overcharge release voltage 4.050 ±0.050 4.075 ±0.050 4.050 ±0.050 4.050 ±0.050 4.150 ±0.050 4.180 ±0.050 4.180 ±0.050 4.150 ±0.050 4.150 ±0.050 Overdischarge detection voltage 2.40 ±0.080 2.20 ±0.080 2.40 ±0.080 2.40 ±0.080 2.20 ±0.080 2.20 ±0.080 2.20 ±0.080 2.20 ±0.080 2.20 ±0.080 Overdischarge release voltage 2.70 ±0.100 2.90 ±0.100 2.70 ±0.100 2.70 ±0.100 2.40 ±0.100 2.50 ±0.100 2.50 ±0.100 2.40 ±0.100 2.40 ±0.100 Overcurrent detection voltage VIOV1 0.300 ±0.025 0.200 ±0.025 0.080 ±0.025 0.120 ±0.025 0.100 ±0.025 0.190 ±0.025 0.125 ±0.025 0.250 ±0.025 0.160 ±0.025 battery charge function Available Unavailable Available Available Available Unavailable Unavailable Available Available
Remark Please contact marketing department products with detection voltage value other than those specified above.
Seiko Instruments Inc.
BATTERY PROTECTION 2-SERIAL 3-SERIAL-CELL PACK S-8253A/B Series
Configuration
8-Pin TSSOP view
Figure Table S-8253A Series
Symbol
Description
Connection discharge control gate (CMOS output) Connection charge control gate (Nch open-drain output) voltage detection between (Detection overcurrent) Input charge discharge control signal, shortening test time Normal operation, inhibit charge discharge (VDD shorten test time) Input negative power supply, Connection negative voltage battery connection Connection negative voltage battery positive voltage battery Input positive power supply, Connection positive voltage battery connection electrically open. This connected VSS. Remark Refer package drawings external views. Table S-8253B Series Symbol Description
Connection discharge control gate (CMOS output) Connection charge control gate (Nch open-drain output) voltage detection between (Detection overcurrent) Input charge discharge control signal, shortening test time Normal operation, inhibit charge discharge, (VDD shorten test time) Input negative power supply, Connection negative voltage battery Connection negative voltage battery positive voltage battery Connection negative voltage battery positive voltage battery Input positive power supply, Connection positive voltage battery Remark Refer package drawings external views.
Seiko Instruments Inc.
BATTERY PROTECTION 2-SERIAL 3-SERIAL-CELL PACK S-8253A/B Series Absolute Maximum Ratings
Table
unless otherwise specified) Item Input voltage between Input voltage input voltage output voltage output voltage input voltage Power dissipation Operating ambient temperature Storage temperature Symbol VVMP VDOP VCOP VIN_CTL Topr Tstg Applicable Pins VC1, Absolute Maximum Ratings VVMP (When mounted board) 700*1 Unit
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 Dissipation (PD) [mW]
Ambient Temperature (Ta) [°C]
Figure Power Dissipation Package (When Mounted Board)
Seiko Instruments Inc.
BATTERY PROTECTION 2-SERIAL 3-SERIAL-CELL PACK S-8253A/B Series
Electrical Characteristics
Except Detection Delay Time
Table (1/2) unless otherwise specified) Item DETECTION VOLTAGE Overcharge detection voltage VCUn 3.90 4.40 Adjustable Overcharge release voltage VCLn 3.80 4.40 Adjustable Overdischarge detection voltage VDLn Adjustable Overdischarge release voltage VDUn 3.40 Adjustable Overcurrent detection voltage Overcurrent detection voltage Overcurrent detection voltage Temperature coefficient Temperature coefficient BATTERY CHARGE FUNCTION battery charge starting charger voltage battery charge inhibition battery voltage INTERNAL RESISTANCE Resistance between Resistance between VIOV1 VIOV2 VIOV3 TCOE1 TCOE2 V0CHA V0INH RVMD RVMS battery charging available battery charging unavailable VVMP VVMP
Symbol
Conditions
Min.
Typ.
Max.
Unit
Test condition
Test circuit
0.05 0.30 Adjustable
VCUn -0.025 VCLn -0.05 VCLn -0.025 VDLn -0.080 VDun -0.10 VDun -0.08 -VIOV1 -0.025 -0.60 -1.5 -1.0 -0.5
VCUn VCLn VCLn VDLn VDun VDun -VIOV1 -0.50 -1.2
VCUn +0.025 VCLn +0.05 VCLn +0.025 VDLn +0.080 VDun +0.10 VDun +0.08 -VIOV1 +0.025 -0.40 -0.9 1800
Seiko Instruments Inc.
BATTERY PROTECTION 2-SERIAL 3-SERIAL-CELL PACK S-8253A/B Series
Table (2/2) unless otherwise specified) Test Test Typ. Max. Unit condicircuit tion +0.5
Item INPUT VOLTAGE Operating voltage between input voltage input voltage
Symbol
Conditions
Min.
VDSOP VCTLH VCTLL
Output voltage fixed
-0.5
INPUT CURRENT Current consumption operation IOPE Current consumption power down IPDN current IVC1 -0.3 current IVC2 -0.3 current ICTLH VCTL1 current ICTLL VCTL1 -0.4 -0.2 OUTPUT CURRENT leakage current ICOH VCOP sink current ICOL VCOP source current IDOH VDOP sink current IDOL VDOP Voltage temperature coefficient Overcharge detection voltage Voltage temperature coefficient Overcurrent detection voltage Because S-8253A Series protection 2-serial cell, there them.
Seiko Instruments Inc.
BATTERY PROTECTION 2-SERIAL 3-SERIAL-CELL PACK S-8253A/B Series
Detection Delay Time
S-8253AAA, S-8253AAB, S-8253AAC, S-8253AAD, S-8253AAE, S-8253AAF, S-8253AAG, S-8253BAA, S-8253BAC,S-8253BAD, S-8253BAE, S-8253BAH Table Item DELAY TIME Overcharge detection delay time Overdischarge detection delay time Overcurrent detection delay time Overcurrent detection delay time Overcurrent detection delay time tIOV1 tIOV2 tIOV3 0.92 1.15 1.38 10.8 Symbol Condition Min. Typ. Max. Unit Test Condition Test Circuit
S-8253BAB, S-8253BAF, S-8253BAG, S-8253BAI Table Item Symbol Condition Min. Typ. Max. Unit Test Condition Test Circuit
DELAY TIME Overcharge detection delay time Overdischarge detection delay time Overcurrent detection delay time Overcurrent detection delay time Overcurrent detection delay time tIOV1 tIOV2 tIOV3 0.92 0.89 1.15 1.38
S-8253AAH Table Item Symbol Condition Min. Typ. Max. Unit Test Condition Test Circuit
DELAY TIME Overcharge detection delay time Overdischarge detection delay time Overcurrent detection delay time Overcurrent detection delay time Overcurrent detection delay time tIOV1 tIOV2 tIOV3 0.92 14.5 1.15 1.38
Seiko Instruments Inc.
BATTERY PROTECTION 2-SERIAL 3-SERIAL-CELL PACK S-8253A/B Series Test Circuits
Overcharge Detection Voltage Overcharge Release Voltage Overdischarge Detection Voltage Overdischarge Release Voltage (Test Condition Test Circuit
Confirm that (S-8253A Series), (S-8253B Series), pins (VDD lower) (this status referred initial status). Overcharge Detection Voltage (VCU1), Overcharge Release Voltage (VCL1) Overcharge detection voltage (VCU1) voltage when voltage (VDD more) after voltage been gradually increased starting initial status. Overcharge release voltage (VCL1) voltage when voltage after voltage been gradually decreased. Overdischarge Detection Voltage (VDL1), Overdischarge Release Voltage (VDU1) Overdischarge detection voltage (VDL1) voltage when voltage high after voltage been gradually decreased starting initial status. Overdischarge release voltage (VDU1) voltage when voltage after voltage been gradually increased. changing S-8253A Series, S-8253B Series) overcharge detection voltage (VCUn), overcharge release voltage (VCLn), overdischarge detection voltage (VDLn), overdischarge release voltage (VDun) measured same when
Overcurrent Detection Voltage Overcurrent Detection Voltage Overcurrent Detection Voltage (Test Condition Test Circuit
Confirm that (S-8253A Series), (S-8253B Series), (this status referred initial status). Overcurrent Detection Voltage (VIOV1) Overcurrent detection voltage (VIOV1) voltage when voltages high after voltage been gradually increased starting initial status. Overcurrent Detection Voltage (VIOV2) Overcurrent detection voltage (VIOV2) voltage when voltages high within minimum maximum values overcurrent detection time (tIOV2) after voltage instantaneously increased (within starting initial status. Overcurrent Detection Voltage (VIOV3) Overcurrent detection voltage (VIOV3) voltage when voltages high within minimum maximum values overcurrent detection time (tIOV3) after voltage instantaneously increased (within starting initial status.
Seiko Instruments Inc.
BATTERY PROTECTION 2-SERIAL 3-SERIAL-CELL PACK S-8253A/B Series
Overcharge Detection Delay Time, Overdischarge Detection Delay Time (Test Condition Test Circuit
Confirm that (S-8253A Series), (S-8253B Series), (this status referred initial status). Overcharge Detection Delay Time (tCU) overcharge detection delay time (tCU) time takes voltage change from high after voltage instantaneously changed from overcharge detection voltage (VCU1) overcharge detection voltage (VCU1) (within starting initial status. Overdischarge Detection Delay Time (tDL) overdischarge detection delay time (tDL) time takes voltage change from high after voltage instantaneously changed from overdischarge detection voltage (VDL1) overdischarge detection voltage (VDL1) (within starting initial status.
Overcurrent Detection Delay Time Detection Delay Time Detection Delay Time (Test Condition Test Circuit
Confirm that (S-8253A Series), (S-8253B Series), (this status referred initial status). Overcurrent Detection Delay Time (tIOV1) Overcurrent detection delay time (tIOV1) time takes voltage change from high after voltage instantaneously changed 0.35 (within starting initial status. Overcurrent Detection Delay Time (tIOV2) Overcurrent detection delay time (tIOV2) time takes voltage change from high after voltage instantaneously changed (within starting initial status. Overcurrent Detection Delay Time (tIOV3) Overcurrent detection delay time (tIOV3) time takes voltage change from high after voltage instantaneously changed (within starting initial status.
Consumption Operation, Power Consumption Power-down (Test Condition Test Circuit
Power Consumption Operation (IOPE) power consumption during operation (IOPE) current (ISS) when (S-8253A Series), (S-8253B Series), OFF. Power Consumption Power-down (IPDN) power consumption power-down (IPDN) current (ISS) when (S-8253A Series), (S-8253B Series), OFF,
Seiko Instruments Inc.
BATTERY PROTECTION 2-SERIAL 3-SERIAL-CELL PACK S-8253A/B Series
Resistance between VDD, Resistance between (Test Condition Test Circuit
Confirm that (S-8253A Series), (S-8253B Series), (this status referred initial status). Resistance between (RVMD) resistance between (RVMD) determined based current (IVMD) after switched respectively, starting initial status. S-8253A Series RVMD IVMD S-8253B Series RVMD IVMD Resistance between (RVMS) resistance between (RVMS) determined based current (IVMS) after (S-8253A Series) (S-8253B Series) starting initial status. S-8253A Series RVMS IVMS S-8253B Series RVMS IVMS
Input Voltage (Test Condition Test Circuit
Confirm that (S-8253A Series), (S-8253B Series), (this status referred initial status). Input Voltage (VCTLH) input voltage (VCTLH) voltage when voltages high after voltage been gradually increased starting initial status.
Input Voltage (Test condition Test circuit
Confirm that (S-8253A Series), (S-8253B Series), 0.35 high (this status referred initial status). Input Voltage (VCTLL) input voltage (VCTLL) voltage when voltages after voltage been gradually decreased starting initial status.
Current "H", Current (Test Condition Test Circuit
Current (ICTLH), Current (ICTLL) current (ICTLH) current that flows through when (S-8253A Series), (S-8253B Series), OFF. current (ICTLL) current that flows through when after that.
Seiko Instruments Inc.
BATTERY PROTECTION 2-SERIAL 3-SERIAL-CELL PACK S-8253A/B Series
Current, Current (Test Condition Test Circuit
Current (IVC1), Current (IVC2) current (IVC1) current that flows through when (S-8253A Series), (S-8253B Series), OFF, Similarly, current (IVC2) current that flows through under these conditions (S-8253B Series only).
Leakage Current, Sink Current (Test Condition Test Circuit
Leakage Current (ICOH) leakage current (ICOH) current that flows through when (S-8253A Series), (S-8253B Series), OFF, Sink Current (ICOL) sink current (ICOL) current that flows through when (S-8253A Series), (S-8253B Series), OFF,
Source Current, Sink Current (Test Condition Test Circuit
Source Current (IDOH) source current (IDOH) current that flows through when (S-8253A Series), (S-8253B Series), OFF, Sink Current (IDOL) sink current (IDOL) current that flows through when (S-8253A Series), (S-8253B Series), OFF,
Battery Charge Starting Battery Charger Voltage (Product with Battery Charge Function), Battery Charge Inhibition Battery Voltage (Product with Battery Charge Inhibition Function) (Test Condition Test Circuit
Battery Charge Starting Battery Charger Voltage (V0CHA) (Product with Battery Charge Function) voltage should lower than V0CHA max. when (S-8253A Series), (S-8253B Series), VVMP V0CHA max. Battery Charge Inhibition Battery Voltage (V0INH) (Product with Battery Charge Inhibition Function) voltage should higher than VVMP when V0INH min. (S-8253A Series), V0INH min. (S-8253B Series), VVMP
Seiko Instruments Inc.
BATTERY PROTECTION 2-SERIAL 3-SERIAL-CELL PACK S-8253A/B Series
S-8253A
S-8253B
Figure Test Circuit
S-8253A
S-8253B
Figure Test Circuit
S-8253A
S-8253B
Figure Test Circuit
Seiko Instruments Inc.
BATTERY PROTECTION 2-SERIAL 3-SERIAL-CELL PACK S-8253A/B Series
S-8253A
S-8253B
Figure Test Circuit
S-8253A S-8253B
Figure Test Circuit
Seiko Instruments Inc.
BATTERY PROTECTION 2-SERIAL 3-SERIAL-CELL PACK S-8253A/B Series Operation
Remark Refer Battery Protection Connection Example".
Normal Status
When battery voltages range from VDLn VCUn discharge current lower than specified value (the voltage higher than VIOV1), charging discharging FETs turned Caution When battery connected first time, discharging enabled. this case, short connect charger restore normal status.
Overcharge Status
When battery voltages becomes higher than VCUn state continues longer, becomes high impedance. Because pulled voltage external resistor, charging turned stop charging. This called overcharge status. overcharge status released when following conditions holds. battery voltages become VCLn lower. battery voltages VCUn lower, voltage VIOV1 lower (since discharge current flows through body diode charging immediately after discharging started when charger removed load connected, voltage momentarily decreases approximately from voltage. detects this voltage releases overcharging status).
Overdischarge Status
When battery voltages becomes lower than VDLn state continues longer, voltage becomes level, discharging turned stop discharging. This called overdischarging status. After discharging stopped overdischarge status, S-8253A/B Series enters power-down status.
Power-down Status
When discharging stopped overdischarge status, pulled down level RVMS resistor. When voltage lower than Typ. S-8253A/B Series enters power-down status. power-down status, almost circuits S-8253A/B Series stop current consumption IPDN lower. conditions each output follows. High-Z power-down status released when following condition holds. voltage Typ. higher. overdischarging status released when following conditions hold. battery voltage released VDUn higher when voltage Typ. higher voltage lower than VDD. battery voltage released VDLn higher when voltage Typ. higher voltage higher (when charger connected voltage higher, overdischarge hysteresis released electric discharge control turned VDLn).
Seiko Instruments Inc.
BATTERY PROTECTION 2-SERIAL 3-SERIAL-CELL PACK S-8253A/B Series
Overcurrent Status
S-8253A/B Series three overcurrent detection levels (VIOV1, VIOV2, VIOV3) three overcurrent detection delay times (tIOV1, tIOV2, tIOV3) corresponding each overcurrent detection level. When discharging current becomes higher than specified value (the difference voltages greater than VIOV1) state continues tIOV1 longer, S-8253A/B Series enters overcurrent status, which voltage becomes level turn discharging stop discharging, becomes high impedance pulled voltage turn charging stop charging, pulled voltage internal resistor (RVMD). Operation overcurrent detection levels (VIOV2, VIOV3) overcurrent detection delay times (tIOV2, tIOV3) same VIOV1 tIOV1. overcurrent status released when following condition holds. voltage VIOV1 higher because charger connected load released. Caution impedance that enables automatic restoration varies depending battery voltage value overcurrent detection voltage
Battery Charge Function
Regarding charging self-discharged battery battery), S-8253A/B Series functions from which should selected. battery charging allowed battery charging available.) When charger voltage higher than V0CHA, battery charged. battery charging prohibited battery charging unavailable.) When battery voltages lower than V0INH, battery cannot charged. Caution When voltage lower than minimum value VDSOP, operation S-8253A/B Series guaranteed.
Seiko Instruments Inc.
BATTERY PROTECTION 2-SERIAL 3-SERIAL-CELL PACK S-8253A/B Series
Delay Circuit
following detection delay times determined dividing clock approximately 3.57 counter. (Example) Oscillator clock cycle (TCLK) Overcharge detection delay time (tCU) Overdischarge detection delay time (tDL) Overcurrent detection delay time (tIOV1) Overcurrent detection delay time (tIOV2) 1.15
Remark overcurrent detection delay time (tIOV2) overcurrent detection delay time (tIOV3) start when overcurrent detection voltage (VIOV1) detected. soon overcurrent detection voltage (VIOV2) overcurrent detection voltage (VIOV3) detected over detection delay time overcurrent (tIOV2) overcurrent (tIOV3) after detection overcurrent (VIOV1), S-8253A/B turns discharging control within tIOV2 tIOV3 each detection.
voltage Overcurrent detection delay time (tIOV2) voltage VIOV1 VIOV2 VIOV3 Time Time tIOV2
Figure
S-8253A/B Series control charge discharge control shortening test time. levels, "L", "H", "M", voltage input determine status S-8253A/B Series: normal operation, charge discharge inhibition, test time shortening. takes precedence over battery protection circuit. During normal use, short pin. Table Conditions Potential Status High-Z High-Z (*2) (*2) (*2) (*2)
Open Charge discharge inhibited status High (VCTL VCTLH) Charge discharge inhibited status Delay time-shortening status Middle (VCTLL VCTL VCTLH) (VCTLL VCTL) Normal status this status, delay times shortened scale. status controlled voltage detection circuit. Caution
potential middle, overcurrent detection voltage (VIOV1) does operate. middle potential pin, contact marketing department. Please note unexpected behavior might occur when electrical potential difference between ("L" level) generated through external filter (RVSS CVSS) result input voltage fluctuations.
Seiko Instruments Inc.
Rev.3.7_00 Timing Chart
BATTERY PROTECTION 2-SERIAL 3-SERIAL-CELL PACK S-8253A/B Series
Overcharge Detection Overdischarge Detection
VCUn VCLn VDUn VDLn
Battery voltage
voltage VEB+ voltage VEB+ VIOV1 voltage High-Z High-Z
Charger connection Load connection Mode*1
Overcharge detection delay time
Overdischarge detection delay time
Normal mode Overcharge mode Overdischarge mode Remark charger assumed charge with constant current. VEB+ indicates open voltage charger. Figure
Seiko Instruments Inc.
BATTERY PROTECTION 2-SERIAL 3-SERIAL-CELL PACK S-8253A/B Series
Overcurrent Detection
VCUn VCLn VDUn VDLn
Battery voltage
voltage VEB+ voltage VIOV1 VIOV2 voltage VIOV3 Load connection
Overcurrent detection delay time tIOV1 Overcurrent detection delay time tIOV2 Overcurrent detection delay time tIOV3)
High-Z
High-Z
High-Z
Mode*1
Normal mode Overcurrent mode
Remark charger assumed charge with constant current. VEB+ indicates open voltage charger. Figure
Seiko Instruments Inc.
BATTERY PROTECTION 2-SERIAL 3-SERIAL-CELL PACK S-8253A/B Series
Battery Protection Connection Example
S-8253A Series
Charging Discharging
RCOP RVMP
RDOP S-8253A CVC1 CVSS RVC1 RVSS
RCTL
Figure
S-8253B Series
Charging Discharging
RCOP RVMP
RDOP S-8253B CVC1 CVC2 CVSS RVC1 RVC2 RVSS
RCTL
Figure
Seiko Instruments Inc.
BATTERY PROTECTION 2-SERIAL 3-SERIAL-CELL PACK S-8253A/B Series
Table Constants External Components Symbol RVC1 RVC2 RDOP RCOP RVMP RCTL RVSS CVC1 CVC2 CVSS Typ. Range 0.51 0.51 51*1 0.47*1 0.47*1 10*1 Unit
Please filter constant RVSS CVSS RVC1 CVC1 RVC2 CVC2 RVSS CVSS. 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 through evaluation using actual application constant.
Seiko Instruments Inc.
Rev.3.7_00 Precautions
BATTERY PROTECTION 2-SERIAL 3-SERIAL-CELL PACK S-8253A/B Series
case designing circuit using pin, seen Figure note that discharging stop during connecting battery pack device. Cause This because overcurrent detection voltage (VIOV3) detected rush current which flows into device while battery pack delay time-shortening status. Mechanism seen Figure before battery pack connected device, battery pack charge discharge inhibited status which internally pulled-up. From this status, connecting battery pack device, will pulled-down time-constant RPD) pull-down resistor device. CTL's potential reaches VCTLL<VCTL<VCTLH, battery pack goes delay time-shortening status that releases charging discharging, hence starts charging parasitic capacitor device. this case, rush current, which makes S-8253A/B Series detect overcurrent detection voltage (VIOV3), flows into device, overcurrent detection delay time (tIOV3 typ.) will shortened. that battery pack goes overcurrent status several However, battery pack goes normal status connecting device charger.
Battery pack S-8253A/B Rush current Parasitic capacitor Device
Discharging Pull-down resistor
Figure
CTLM
tIOV3
Rush current Connect battery pack device Connect charger
Mode Normal mode Overcurrent mode Charge discharge inhibit mode Delay time-shortening mode (enable charge discharge)
Figure
Seiko Instruments Inc.
BATTERY PROTECTION 2-SERIAL 3-SERIAL-CELL PACK S-8253A/B Series
application conditions input voltage, output voltage, load current should exceed package power dissipation. Batteries connected order, however, there cases when discharging cannot performed when battery connected. this case, short connect battery charger return normal mode. 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 2-SERIAL 3-SERIAL-CELL PACK S-8253A/B Series
Characteristics (Typical Data)
Current Consumption
IOPE
(S-8253AAA)
(S-8253BAA)
IOPE [µA]
IOPE [µA]
IOPE
(S-8253AAA)
[°C]
(S-8253BAA)
IOPE [µA]
IOPE [µA]
[°C]
IPDN
0.10 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01
(S-8253AAA)
0.10 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01
(S-8253BAA)
IPDN [µA]
IPDN [µA]
IPDN
0.10 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01
(S-8253AAA)
[°C]
0.10 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01
(S-8253BAA)
IPDN [µA]
IPDN [µA]
[°C]
Seiko Instruments Inc.
BATTERY PROTECTION 2-SERIAL 3-SERIAL-CELL PACK S-8253A/B Series
Overcharge Detection Release Voltage, Overdischarge Detection Release Voltage, Overcurrent Detection Voltage, Delay Times (S-8253AAA, S-8253BAA)
4.375 4.370 4.365 4.360 4.355 4.350 4.345 4.340 4.335 4.330 4.325
[°C]
7585
4.10 4.09 4.08 4.07 4.06 4.05 4.04 4.03 4.02 4.01 4.00
[µA]
[µA]
[°C]
2.80 2.78 2.76 2.74 2.72 2.70 2.68 2.66 2.64 2.62 2.60
[°C]
2.48 2.46 2.44 2.42 2.40 2.38 2.36 2.34 2.32
[µA]
[µA]
[°C]
1380 1320 [ms]
[ms]
[°C]
1220 1120 1020
[°C]
VIOV1
VIOV1
0.325 0.320 0.315 0.310 0.305 0.300 0.295 0.290 0.285 0.280 0.275
0.325 0.320 0.315 0.310 0.305 0.300 0.295 0.290 0.285 0.280 0.275
VIOV1
VIOV1
[°C]
Seiko Instruments Inc.
BATTERY PROTECTION 2-SERIAL 3-SERIAL-CELL PACK S-8253A/B Series
VIOV2
VIOV2
0.60 0.58 0.56 0.54 0.52 0.50 0.48 0.46 0.44 0.42 0.40
0.60 0.58 0.56 0.54 0.52 0.50 0.48 0.46 0.44 0.42 0.40
VIOV2
VIOV2
[°C]
VIOV3
VIOV3
VIOV3
VIOV3
tIOV1
[°C]
tIOV1
10.8 10.4 10.0
10.8 10.4 10.0
tIOV1 [ms]
tIOV1 [ms]
[°C]
tIOV2
tIOV2
tIOV2 [ms]
tIOV2 [ms]
[°C]
Seiko Instruments Inc.
BATTERY PROTECTION 2-SERIAL 3-SERIAL-CELL PACK S-8253A/B Series
tIOV3
tIOV3
0.38 0.36 0.34 0.32 0.30 0.28 0.26 0.24 0.22
0.38 0.36 0.34 0.32 0.30 0.28 0.26 0.24 0.22
tIOV3 [ms]
tIOV3 [ms]
[°C]
(S-8253AAA, S-8253BAA) ICOH VCOP ICOL VCOP
0.10 0.08 0.06 0.04 0.02 VCOP
ICOL [mA]
ICOH [µA]
VCOP
10.5
IDOH VDOP
IDOL VDOP
-0.5 IDOH [mA] -1.0 -1.5 -2.0 -2.5 VDOP
IDOL [mA]
VDOP
10.5
Seiko Instruments Inc.
3.00 -0.2
+0.3
0.17±0.05
0.2±0.1 0.65
FT008-A-P-SD-1.1
TITLE SCALE UNIT
TSSOP8-E-PKG Dimensions FT008-A-P-SD-1.1
Seiko Instruments Inc.
4.0±0.1 2.0±0.05 0.3±0.05
8.0±0.1
-0.05
+0.1
(4.4)
-0.2
+0.4
Feed direction
FT008-E-C-SD-1.0
TITLE SCALE UNIT
TSSOP8-E-Carrier Tape FT008-E-C-SD-1.0
Seiko Instruments Inc.
13.4±1.0 Enlarged drawing central part 2±0.5 17.5±1.0
FT008-E-R-SD-1.0
TITLE SCALE UNIT
TSSOP8-E-Reel FT008-E-R-SD-1.0
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.
Other recent searches
SXA15 - SXA15 SXA15 Datasheet
QS74FCT16244T - QS74FCT16244T QS74FCT16244T Datasheet
MXP7001 - MXP7001 MXP7001 Datasheet
CLM285-2 - CLM285-2 CLM285-2 Datasheet
CLM385-2 - CLM385-2 CLM385-2 Datasheet
CLM285Y2 - CLM285Y2 CLM285Y2 Datasheet
CLM385T2 - CLM385T2 CLM385T2 Datasheet
CLM385N2 - CLM385N2 CLM385N2 Datasheet
CLM385Y2 - CLM385Y2 CLM385Y2 Datasheet
BTA312X-600D - BTA312X-600D BTA312X-600D Datasheet
BC0702A - BC0702A BC0702A Datasheet
RW1068 - RW1068 RW1068 Datasheet
Privacy Policy | Disclaimer
© 2012 Datasheet Archive
