HSNT-8(1616) (PY008-A)The S-82K1A 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-82K1A Series realizes high-accuracy overcurrent protection with less effect from temperature change.
The S-82K1A Series also has an input pin for charge-discharge control signal, allowing for charge-discharge control with an external signal.
Features
- High-accuracy voltage detection circuit
- Overcharge detection voltage : 3.500 V to 4.600 V (5 mV step) Accuracy ±15 mV
- Overcharge release voltage : 3.100 V to 4.600 V*1 Accuracy ±50 mV
- Overdischarge detection voltage : 2.000 V to 3.000 V (10 mV step) Accuracy ±50 mV
- Overdischarge release voltage : 2.000 V to 3.400 V*2 Accuracy ±75 mV
- Discharge overcurrent detection voltage 1 : 0.003 V to 0.100 V (0.5 mV step) Accuracy ±1.0 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 ±1.0 mV
- Detection delay times are generated only by an internal circuit (external capacitors are unnecessary).
- Charge-discharge control function
- CTL pin control logic : Active "H", active "L"
- CTL pin internal resistance : Pull-up, pull-down
- CTL pin internal resistance value : 1 MΩ to 10 MΩ (1 MΩ step)
- Discharge overcurrent control function
- Release condition of discharge overcurrent status : Load disconnection
- Release voltage of discharge overcurrent status : VRIOV = VDD × 0.8 (typ.)
- 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 V
- Wide operation temperature range
- Ta = −40°C to +85°C
- Low current consumption
- During operation : 2.0 μA typ., 4.0 μA max. (Ta = +25°C)
- During power-down : 50 nA max. (Ta=+25°C)
- During overdischarge : 0.5 μA max. (Ta = +25°C)
- 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