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S-82B1AAA-I6T1U Datasheet, PDF (1/35 Pages) Seiko Instruments Inc – High-accuracy voltage detection circuit | |||
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S-82B1A Series
www.sii-ic.com
BATTERY PROTECTION IC
WITH CHARGE-DISCHARGE CONTROL FUNCTION FOR 1-CELL PACK
© SII Semiconductor Corporation, 2016
Rev.1.1_00
The S-82B1A Series is a protection IC for lithium-ion / lithium polymer rechargeable batteries and includes high-accuracy
voltage detection circuits and delay circuits. It is suitable for protecting 1-cell lithium-ion / lithium polymer rechargeable battery
packs from overcharge, overdischarge, and overcurrent.
The S-82B1A Series has an input pin for charge-discharge control signal, allowing for charge-discharge control with an external
signal.
ï® Features
⢠High-accuracy voltage detection circuit
Overcharge detection voltage
Overcharge release voltage
3.5 V to 4.6 V (5 mV step)
3.1 V to 4.6 V*1
Accuracy ±20 mV
Accuracy ±50 mV
Overdischarge detection voltage
Overdischarge release voltage
2.0 V to 3.0 V (10 mV step)
2.0 V to 3.4 V*2
Accuracy ±50 mV
Accuracy ±100 mV
Discharge overcurrent detection voltage 1
0.010 V to 0.100 V (1 mV step)
Accuracy ±3 mV
Discharge overcurrent detection voltage 2
0.030 V to 0.200 V (1 mV step)
Accuracy ±5 mV
Load short-circuiting detection voltage
0.050 V to 0.500 V (5 mV step)
Accuracy ±20 mV
Charge overcurrent detection voltage
â0.100 V to â0.010 V (1 mV step) Accuracy ±3 mV
⢠Detection delay times are generated only by an internal circuit (external capacitors are unnecessary).
⢠Charge-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
⢠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
⢠Release voltage of discharge overcurrent status is selectable:
Discharge overcurrent detection voltage 1 (VDIOV1),
Discharge overcurrent release voltage (VRIOV) = VDD Ã 0.8 (typ.)
⢠High-withstand voltage:
VM pin and CO pin: Absolute maximum rating 28 V
⢠Wide operation temperature range:
Ta = â40°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)
During overdischarge:
500 nA max. (Ta = +25°C)
⢠Lead-free (Sn 100%), halogen-free
*1. Overcharge release voltage = Overcharge detection voltage â Overcharge hysteresis voltage
(Overcharge hysteresis voltage can be selected as 0 V or from a range of 0.1 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 as 0 V or from a range of 0.1 V to 0.7 V in 100 mV step.)
ï® Applications
⢠Lithium-ion rechargeable battery pack
⢠Lithium polymer rechargeable battery pack
ï® Package
⢠SNT-6A
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