ABLIC S-82R1A Battery Protection IC
ABLIC S-82R1A Battery Protection IC is for lithium-ion / lithium polymer rechargeable batteries, including high-accuracy voltage detection circuits and delay circuits. The IC is suitable for protecting 1-cell lithium-ion / lithium polymer rechargeable battery packs from overcharge, overdischarge, and overcurrent. Overheat protection is possible by connecting an NTC thermistor to the NTC thermistor connection pin (TH pin.) The battery voltage monitoring pin (BS pin) enables accurate voltage monitoring.
Features
- With battery voltage monitoring pin
- High-accuracy overheat protection circuit by an external NTC thermistor
- Overheat detection temperature: +45℃ to +85℃ (1℃ step) Accuracy ±3℃*1
- High-accuracy voltage detection circuit
- Overcharge detection voltage: 3.500V to 4.800V (5mV step) Accuracy ±15mV
- Overcharge release voltage: 3.100V to 4.800V Accuracy ±50mV
- Overdischarge detection voltage: 2.000V to 3.000V (10mV step) Accuracy ±50mV
- Overdischarge release voltage: 2.000V to 3.400V Accuracy ±75mV
- Discharge overcurrent 1 detection voltage: 3mV to 100mV (0.5mV step) Accuracy ±1.5mV
- Discharge overcurrent 2 detection voltage: 10mV to 100mV (0.5mV step) Accuracy ±3mV
- Load short-circuiting detection voltage: 20mV to 100mV (1mV step) Accuracy ±5mV
- Charge overcurrent detection voltage: −100mV to −3mV (0.5mV step) Accuracy ±1.5mV
- Detection delay times are generated only by an internal circuit (external capacitors are unnecessary)
- Discharge overcurrent control function
- Release condition of discharge overcurrent status: Load disconnection
- Release voltage of discharge overcurrent status: Discharge overcurrent release voltage (VRIOV) = VDD × 0.8 (typ.)
- 0V battery charge
- Enabled, inhibited
- Power-down function
- Available, unavailable
- High-withstand voltage
- VM pin and CO pin: Absolute maximum rating 28V
- Wide operation temperature range
- Ta = −40℃ to +85℃
- Low current consumption
- During operation: 4.5μA typ., 6.0 μA max. (Ta = +25℃)
- During power-down: 50nA max. (Ta = +25℃)
- During overdischarge: 0.5μA max. (Ta = +25℃)
- Lead-free (Sn 100%), halogen-free
Applications
- Lithium-ion rechargeable battery pack
- Lithium polymer rechargeable battery pack
Block Diagram
Veröffentlichungsdatum: 2022-06-30
| Aktualisiert: 2022-07-08