Описание
The S-8242B Series are protection ICs for 2-serial-cell lithium-ion/lithium polymer rechargeable batteries and include highaccuracy voltage detectors and delay circuits. These ICs are suitable for protecting 2-cell lithium-ion / lithium polymer rechargeable battery packs from overcharge, overdischarge, and overcurrent.
Accuracy ±50 mV Overdischarge detection voltage n (n = 1, 2) 2.0 V to 3.0 V (100 mV steps) Accuracy ±50 mV Overdischarge release voltage n (n = 1, 2) 2.0 V to 3.4 V Accuracy ±100 mV Two-level overcurrent detection (overcurrent 1, overcurrent 2) Overcurrent detection voltage 1 0.05 V, 0.08 V to 0.30 V (10 mV steps) Accuracy ±15 mV Overcurrent detection voltage 2 1.2 V (fixed) Accuracy ±300 mV Delay times (overcharge, overdischarge, overcurrent) are generated by an internal circuit (external capacitors are unnecessary) 0 V battery charge function available/unavailable are selectable Charger detection function The overdischarge hysteresis is released by detecting negative voltage at the VM pin (-0.7 V typ.) (Charger detection function) High-withstand voltage devices Absolute maximum rating: 28 V Wide operating temperature range -40°C to +85°C Low current consumption Operation mode 10 µA max. (+25°C) Power-down mode 0.1 µA max. (+25°C) Lead-free, Sn 100%, halogen-free
