PROTECTION IC. S-8250B Datasheet

S-8250B IC. Datasheet pdf. Equivalent

Part S-8250B
Description BATTERY PROTECTION IC
Feature S-8250B Series www.ablicinc.com © ABLIC Inc., 2013-2016 BATTERY PROTECTION IC FOR 1-CELL PACK Rev..
Manufacture ABLIC
Datasheet
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S-8250B Series www.ablicinc.com © ABLIC Inc., 2013-2016 BA S-8250B Datasheet
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S-8250B
S-8250B Series
www.ablicinc.com
© ABLIC Inc., 2013-2016
BATTERY PROTECTION IC FOR 1-CELL PACK
Rev.1.1_03
The S-8250B Series is a protection IC for 1-cell lithium-ion / lithium polymer rechargeable batteries and includes
high-accuracy voltage detection circuits and delay circuits.
The S-8250B Series is suitable for protecting 1-cell lithium-ion / lithium polymer rechargeable battery packs from overcharge,
overdischarge and overcurrent. By adjusting power supply voltage dependency of discharge overcurrent detection voltage in
accordance with ON resistance of the charge-discharge control FET, the S-8250B Series realizes high-accuracy discharge
overcurrent detection.
Features
High-accuracy discharge overcurrent detection circuit
Discharge overcurrent detection voltage 0.050 V to 0.150 V (1 mV step)
Accuracy 10 mV (Ta = 25°C)
(Power supply voltage dependency can be set in accordance with ON resistance of the charge-discharge control FET.)
High-accuracy voltage detection circuit
Overcharge detection voltage
4.100 V to 4.600 V (5 mV step)
Accuracy 20 mV (Ta = 25°C)
Overcharge release voltage
3.700 V to 4.600 V*1
Accuracy 25 mV (Ta = 10°C to 60°C)
Accuracy 30 mV
Overdischarge detection voltage
Overdischarge release voltage
2.000 V to 2.800 V (10 mV step)
2.000 V to 3.000 V*2
Accuracy 50 mV
Accuracy 100 mV
Load short-circuiting detection voltage 0.250 V to 0.500 V (50 mV step)
Accuracy 50 mV
Charge overcurrent detection voltage 0.200 V to 0.025 V (25 mV step) Accuracy 15 mV
Detection delay times are generated only by an internal circuit (External capacitors are unnecessary).
0 V battery charge function is selectable:
Available, unavailable
Power-down function is selectable:
Available, unavailable
Release condition of discharge overcurrent status is selectable:
Load disconnection, charger connection
High-withstand voltage:
VM pin and CO pin: Absolute maximum rating 28 V
Wide operation temperature range:
Ta = 40°C to 85°C
Low current consumption
During operation:
2.0 A typ., 4.0 A max. (Ta = 25°C)
During power-down:
50 nA max. (Ta = 25°C)
Lead-free (Sn 100%), halogen-free
*1. Overcharge release voltage = Overcharge detection voltage Overcharge hysteresis voltage
(Overcharge hysteresis voltage can be selected from a range of 0 V to 0.4 V in 50 mV step.)
*2. Overdischarge release voltage = Overdischarge detection voltage Overdischarge hysteresis voltage
(Overdischarge hysteresis voltage can be selected from a range of 0 V to 0.7 V in 100 mV step.)
Applications
Lithium-ion rechargeable battery pack
Lithium polymer rechargeable battery pack
Package
SNT-6A
1



S-8250B
BATTERY PROTECTION IC FOR 1-CELL PACK
S-8250B Series
Block Diagram
VDD
VSS
VM
Overdischarge
detection comparator
Overcharge
detection comparator
Discharge overcurrent
detection comparator
Load short-circuiting
detection comparator
Control logic
Delay circuit
Oscillator
Charge overcurrent
detection comparator
Remark All the diodes shown in the figure are parasitic diodes.
Figure 1
Rev.1.1_03
DO
CO
2





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