Description

M62253BGP is a charge control IC dedicated to Lithium-ion batteries. Constant current/voltage charging suitable for Li-Ion batteries are available by utilizing on-chip current/voltage control circuits.

It also includes charge inhibit function for over discharged battery and charge control function detecting battery temperature, allowing for easy configuration of Li-Ion battery charging circuit.

Features

• Available for 4.2 V battery

• High precision reference voltage 4.2 V ± 30 mV

• Constant current and constant voltage charging

• Charge completion detection voltage settable by external resistors

• Charging inhibit and protection function for over discharged battery

• Charging inhibit and protection function for both high and low temperature battery

• Dual LED indications monitoring charging status

• Recharging function (LED2 remains turned on after recharging)

• Delay circuit to prevent erroneous detection

Applications

Li-Ion battery charger for hand-held instruments such as cellular phones and notebook computers