S-8224B - ABLIC

S-8224B Battery Protection

S-8224A/B Series www.ablic.com © ABLIC Inc., 2017-2023 BATTERY PROTECTION IC FOR 2-SERIAL TO 4-SERIAL CELL PACK (SECONDARY PROTECTION) Rev.1.4_00 The S-8224A/B Series is used for secondary protection of lithium-ion rechargeable batteries, and incorporates high-accuracy voltage detection circuits and delay circuits. Short-circuits between cells accommodate.

Features

• High-accuracy voltage detection circuit for each cell Overcharge detection voltage n (n = 1 to 4) 3.600 V to 4.700 V (50 mV step) Accuracy ±20 mV (Ta = +25°C) Accuracy ±25 mV (Ta = −10°C to +60°C) Overcharge hysteresis voltage n (n = 1 to 4)
*1 0.0 mV to −550 mV (50 mV step) −300 mV to −550 mV Accuracy ±20% −100 mV to −250 mV Accuracy ±50 mV −50 mV Accuracy ±25 mV 0.0 mV Accuracy −25 mV to +20 mV
• Delay times for overcharge detection are generated only by an internal circuit (external capacitors are unnecessary) Overcharge detection delay time is selectable: 1 s, 2 s, 4 s, .