S-82M1A Series BATTERY PROTECTION IC www.ablic.com FOR 1-CELL PACK ABLIC Inc., 2021 Rev.1.1 00 The S-82M1A Series is a protection IC for lithium-ion / lithium polymer rechargeable batteries, which 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. By using an external overcurrent detection resistor, the S-82M1A Series realizes high-accuracy overcurrent protection with less effect from temperature change. Features High-accuracy voltage detection circuit Overcharge detection voltage 3.500 V to 4.600 V (5 mV step) Accuracy 15 mV *1 Overcharge release voltage 3.100 V to 4.600 V Accuracy 50 mV Overdischarge detection voltage 2.000 V to 3.000 V (10 mV step) Accuracy 50 mV *2 Overdischarge release voltage 2.000 V to 3.400 V Accuracy 100 mV Discharge overcurrent detection voltage 0.003 V to 0.100 V (1 mV step) Accuracy 3 mV Load short-circuiting detection voltage 0.010 V to 0.200 V (1 mV step) Accuracy 7 mV Charge overcurrent detection voltage 0.100 V to 0.003 V (1 mV step) Accuracy 3 mV Detection delay times are generated only by an internal circuit (external capacitors are unnecessary). 0 V battery charge: Enabled, inhibited Power-down function: Available, unavailable High-withstand voltage: VM pin and CO pin: Absolute maximum rating 28 V Wide operation temperature range: Ta = 40C to +85C Low current consumption During operation: 600 nA typ., 990 nA max. (Ta = +25C) During power-down: 50 nA max. (Ta = +25C) During overdischarge: 500 nA max. (Ta = +25C) Lead-free (Sn 100%), halogen-free *1. Overcharge release voltage = Overcharge detection voltage 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.) Applications Lithium-ion rechargeable battery pack Lithium polymer rechargeable battery pack Package SNT-6A 1 BATTERY PROTECTION IC FOR 1-CELL PACK S-82M1A Series Rev.1.1 00 Block Diagram VDD Overdischarge detection comparator DO Overcharge detection comparator VSS Discharge overcurrent Control logic detection comparator Delay circuit Oscillator Load short-circuiting detection comparator Charge overcurrent detection comparator VINI CO VM Figure 1 2