S-8252AAA-M6T1U Datasheet, PDF (1/36 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC

S-8252 Series
www.sii-ic.com
© SII Semiconductor Corporation, 2011-2016
BATTERY PROTECTION IC
FOR 2-SERIAL-CELL PACK
Rev.3.2_00
The S-8252 Series is a protection IC for 2-serial-cell lithium-ion / lithium polymer rechargeable batteries and includes high-
accuracy voltage detection circuits and delay circuits.
The S-8252 Series is suitable for protecting 2-serial-cell rechargeable lithium-ion / lithium polymer battery packs from
overcharge, overdischarge, and overcurrent.
 Features
• High-accuracy voltage detection function for each cell
Overcharge detection voltage n (n = 1, 2) 3.550 V to 4.600 V (5 mV steps) Accuracy ±20 mV (Ta = +25°C)
Overcharge release voltage n (n = 1, 2)
3.150 V to 4.600 V^*1
Accuracy ±25 mV (Ta = −10°C to +60°C)
Accuracy ±30 mV
Overdischarge detection voltage n (n = 1, 2) 2.000 V to 3.000 V (10 mV steps) Accuracy ±50 mV
Overdischarge release voltage n (n = 1, 2) 2.000 V to 3.400 V^*2
Accuracy ±100 mV
Discharge overcurrent detection voltage
0.050 V to 0.400 V (10 mV steps) Accuracy ±10 mV
Load short-circuiting detection voltage
0.500 V (fixed)
Accuracy ±100 mV
Charge overcurrent detection voltage
−0.400 V to −0.050 V (25 mV steps) Accuracy ±20 mV
• Charge overcurrent detection function "available" / "unavailable" is selectable.
• Detection delay times are generated only by an internal circuit (external capacitors are unnecessary).
Accuracy ±20%
• High-withstand voltage (VM pin and CO pin: Absolute maximum rating = 28 V)
• 0 V battery charge function "available" / "unavailable" is selectable.
• Power-down function "available" / "unavailable" is selectable.
• Wide operation temperature range
Ta = −40°C to +85°C
• Low current consumption
During operation
8.0 μA max. (Ta = +25°C)
During power-down
0.1 μA max. (Ta = +25°C)
• Lead-free (Sn 100%), halogen-free
*1. Overcharge release voltage = Overcharge detection voltage − Overcharge hysteresis voltage
(Overcharge hysteresis voltage n (n = 1, 2) can be selected as 0 V or from a range of 0.1 V to 0.4 V in 50 mV steps.)
*2. Overdischarge release voltage = Overdischarge detection voltage + Overdischarge hysteresis voltage
(Overdischarge hysteresis voltage n (n = 1, 2) can be selected as 0 V or from a range of 0.1 V to 0.7 V in
100 mV steps.)
 Applications
• Lithium-ion rechargeable battery pack
• Lithium polymer rechargeable battery pack
 Packages
• SOT-23-6
• SNT-6A
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