BQ2004 - Benchmarq

BQ2004 Fast Chargeer

The bq2004 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 bq2004 to be the basis of a cost-effective solution for stand-alone and systemintegrated chargers for batteries of one or more ce.

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 ➤ Configurable, direct LED outputs display battery and charge status ➤ Fast-charge termination by ∆ temperature/∆ time, peak volume detection, -∆V, maximum voltage, maximum temperature, and maximum time ➤ Optional top-off charge and pulsed current maintenance charging ➤ Logic-level controlled low-power mod.