DESCRIPTION

The AIC1803 is designed to protect the lithiumion battery from damage or degrading the lifetime due to overcharging, overdischarging and overcurrent for three-cell lithium-ion battery powered systems such as notebook PCs. It can also provide the cell-balancing “bleeding” function to automatically discharge the overcharged cell until the overcharge condition is released.

FEATURES

• Ultra-Low Quiescent Current at 13mA (VCELL=3.5V).

• Ultra-Low Power-Down Current at 1.3mA (VCELL=2.3V)

• Wide Supply Voltage Range: 2V to 18V.

• Precision Overcharge Protection Voltage:

4.35V± 30mV for the AIC1803A

4.30V± 30mV for the AIC1803B

4.25V± 30mV for the AIC1803C

4.20V± 30mV for the AIC1803D

• Externally Set Overcharge, Overdischarge and Overcurrent Delay Time.

• Built-in Cell-balancing Bleeding Network under Overcharge Condition.

• Three Detection Levels for Overcurrent Protection.

APPLICATIONS

• Protection IC for Three-Cell Lithium-Ion Battery Pack.