Overcurrent Monitoring IC For Multi-serial-cell Pack S-8269B Series

The S-8269B Series is an overcurrent monitoring IC for multi-serial-cell pack including high-accuracy voltage detection circuits and delay circuits.
By using an external overcurrent detection resistor, the S-8269B Series realizes high-accuracy overcurrent protection with less effect from temperature change.

The S-8269A series with CTL pin is also available. For details, please contact our sales offices.

Features

High-accuracy voltage detection circuit

Discharge overcurrent detection voltage 1: 0.0030 V to 0.1000 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: −0.1000 V to −0.0030 V (0.5 mV step) Accuracy ±1.5 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: V_DIOV1, V_RIOV = V_DD × 0.8 (typ.)

High-withstand voltage

VM pin and CO pin: Absolute maximum rating 28 V

Low current consumption

During operation: 2.0 μA typ., 4.0 μA max. (Ta = +25°C)

Wide operation temperature range

Ta = −40°C to +85°C

Lead-free (Sn 100%), halogen-free

Applications