S-82D1A Series BATTERY PROTECTION IC www.ablic.com WITH TEMPERATURE PROTECTION FUNCTION FOR 1-CELL PACK ABLIC Inc., 2020-2021 Rev.1.1 00 The S-82D1A Series is a protection IC for lithium-ion / lithium polymer rechargeable batteries, which includes temperature protection circuits, high-accuracy voltage detection circuits, and delay circuits. Temperature protection is possible by connecting an NTC thermistor to the dedicated connection pin. It is suitable for protecting 1-cell lithium-ion / lithium polymer rechargeable battery packs from overcharge, overdischarge, and overcurrent. Features High-accuracy temperature protection circuit by an external NTC thermistor *1 High temperature charge-discharge inhibition temperature +40C to +85C (1C step) Accuracy 3C *1 High temperature charge inhibition temperature +40C to +85C (1C step) Accuracy 3C *1 Low temperature charge inhibition temperature 40C to +10C (1C step) Accuracy 3C *1 Low temperature charge-discharge inhibition temperature 40C to +10C (1C step) Accuracy 3C High-accuracy voltage detection circuit Overcharge detection voltage 3.500 V to 4.600 V (5 mV step) Accuracy 15 mV *2 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 *3 Overdischarge release voltage 2.000 V to 3.400 V Accuracy 75 mV Discharge overcurrent detection voltage 1 0.003 V to 0.100 V (0.5 mV step) Accuracy 1.5 mV Discharge overcurrent detection voltage 2 0.010 V to 0.100 V (1 mV step) Accuracy 3 mV Load short-circuiting detection voltage 0.020 V to 0.100 V (1 mV step) Accuracy 5 mV Charge overcurrent detection voltage 0.100 V to 0.003 V (0.5 mV step) Accuracy 1.5 mV Detection delay times are generated only by an internal circuit (external capacitors are unnecessary). Charge-discharge control function CTL pin control logic: Active, active CTL pin internal resistance: Pull-up, pull-down CTL pin internal resistance value: 1 M to 5 M (1 M step) Discharge overcurrent control function Release condition of discharge overcurrent status: Load disconnection Release voltage of discharge overcurrent status: Discharge overcurrent release voltage (VRIOV) = V 0.8 (typ.) DD Discharge overcurrent status reset function by CTL pin: Available, unavailable 0 V battery charge: Enabled, inhibited Power-down function: Available, unavailable High-withstand voltage: VM pin and CO pin: Absolute maximum rating 28.0 V Wide operation temperature range: Ta = 40C to +85C Low current consumption During operation: 2.5 A typ., 5.0 A max. (Ta = +25C) During power-down: 100 nA max. (Ta = +25C) During overdischarge: 0.5 A max. (Ta = +25C) Lead-free (Sn 100%), halogen-free *1. Temperature detection accuracy varies with NTC thermistor specifications. When an NTC thermistor listed in Table 6 is connected, the detection temperature and accuracy can be achieved. *2. 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.) *3. 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 HSNT-8(1616) 1 BATTERY PROTECTION IC WITH TEMPERATURE PROTECTION FUNCTION FOR 1-CELL PACK S-82D1A Series Rev.1.1 00 Block Diagram VDD Overdischarge detection comparator DO Overcharge detection comparator Discharge overcurrent detection 1 comparator VSS Discharge overcurrent detection 2 comparator Control logic Load short-circuiting Delay circuit detection comparator Oscillator Charge overcurrent detection comparator VINI High temperature detection comparator Low temperature detection comparator TH Pull-up / pull-down CTL selection circuit CO VM Figure 1 2