Описание
The S-8211DAR Series is a protection IC for 1-cell lithium-ion / lithium-polymer rechargeable battery and includes high-accuracy voltage detection circuits and delay circuits. The S-8211DAR Series is suitable for protecting 1-cell rechargeable lithium-ion / lithium-polymer battery packs from overcharge, overdischarge, and overcurrent.
High-accuracy voltage detection circuit Overcharge detection voltage 3.6 V to 4.5 V (5 mV step) Accuracy ±25 mV (Ta = +25°C) Accuracy ±30 mV (Ta = -5°C to +55°C) Overcharge release voltage 3.5 V to 4.4 V Accuracy ±50 mV Overdischarge detection voltage 2.0 V to 3.0 V (10 mV step) Accuracy ±50 mV Overdischarge release voltage 2.0 V to 3.4 V Accuracy ±100 mV Discharge overcurrent detection voltage 0.05 V to 0.30 V (10 mV step) Accuracy ±15 mV Load short-circuiting detection voltage 0.5 V (fixed) Accuracy ±200 mV 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 3.0 µA typ., 5.5 µA max. (Ta = +25°C) During power-down 0.2 µA max. (Ta = +25°C) Lead-free, Sn 100%, halogen-free
