Features

• High-accuracy voltage detection circuit

Overcharge detection voltage 3.500 V to 4.800 V (5 mV step) Accuracy ±12 mV

Overcharge release voltage 3.100 V to 4.800 V*1 Accuracy ±50 mV

Alarm detection voltage 3.500 V to 4.800 V (5 mV step) Accuracy ±12 mV

Alarm hysteresis voltage 0 V, 0.010 V, 0.020 V Accuracy ±5 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 1 detection voltage 3 mV to 100 mV (0.5 mV step) Accuracy ±1 mV

Discharge overcurrent 2 detection voltage 10 mV to 100 mV (1 mV step) Accuracy ±2 mV

Load short-circuiting detection voltage 20 mV to 100 mV (1 mV step) Accuracy ±4.5 mV

Charge overcurrent detection voltage −100 mV to −3 mV (0.5 mV step) Accuracy ±1 mV

• 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.)

• 0 V battery charge: Enabled, inhibited

• Power-down function: Available, unavailable

• Alarm function

AO pin output logic: Active H, active L

AO pin output form: CMOS output, Nch open-drain output

Connection when AO pin = L: VSS pin, VM pin

Charge control function: Available, unavailable

• High-withstand voltage: VM pin, CO pin and AO pin: Absolute maximum rating 28 V

• Wide operation temperature range: Ta = −40°C to +85°C

• Low current consumption

During operation: 2.5 μA typ., 5.0 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

Applications

• Lithium-ion rechargeable battery pack

• Lithium polymer rechargeable battery pack