S-8250AAB-I6T1U Datasheet, PDF (1/36 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC

S-8250A Series
BATTERY PROTECTION IC
www.sii-ic.com
WITH DISCHARGE CONTROL FUNCTION FOR 1-CELL PACK
© SII Semiconductor Corporation, 2013-2016
Rev.1.3_02
The S-8250A 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-8250A Series is suitable for protecting 1-cell lithium-ion / lithium polymer rechargeable battery packs from overcharge,
overdischarge, overcurrent, and controlling discharge by external signal. By adjusting power supply voltage dependency of
discharge overcurrent detection voltage in accordance with ON resistance of the charge-discharge control FET, the S-8250A
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).
• Discharge control function
CTL pin control logic is selectable:
Active "H", active "L"
CTL pin internal resistance connection is selectable:
Pull-up, pull-down
CTL pin internal resistance value is selectable:
1.0 MΩ, 2.0 MΩ, 3.0 MΩ, 4.0 MΩ, 5.0 MΩ
Discharge inhibition status latch function is selectable:
Available, unavailable
• 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 μA typ., 4.0 μA 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
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