BQ2003S

快速充电IC Fast-Charge IC

General Description

The bq2003 Fast Charge IC provides comprehensive fast charge control functions together with high-speed switching power control circuitry on a monolithic CMOS device. Integration of closed-loop current control circuitry allows the bq2003 to be the basis of a cost-effective so lution for stand-alone and system integrated chargers for batteries of one or more cells.

Features

➤ Fast charge and conditioning of nickel cadmium or nickel-metal hydride batteries

➤ Hysteretic PWM switch-mode current regulation or gated control of an external regulator

➤ Easily integrated into systems or used as a stand-alone charger

➤ Pre-charge qualification of temperature and voltage

➤ Direct LED outputs display battery and charge status

➤ Fast-charge termination by ∆ temperature/∆ time, -∆V, maximum voltage, maximum temperature, and maximum time

➤ Optional top-off charge