FEATURES
➤ Fast charge of nickel cadmium or nickel-metal hydride batteries ➤ Direct LED output displays charge status ➤ Fast-charge termination by -∆V, maximum voltage, maximum temperature, and maximum time ➤ Internal band-gap voltage reference ➤ Optional top-off charge ➤ Selectable pulse trickle charge rates ➤ Low-power mode ➤ 8-pin 300-mil DIP or 150-mil SOIC GENERAL DESCRIPTION
Controlling a current-limited or constant-current supply allows the bq2002/F to be the basis for a cost-effective stand-alone or system-integrated charger. Fast charge is initiated on application of the charging supply or battery replacement. Fast charge is terminated by any of the following: n Peak voltage detection (PVD) n Negative delta voltage (-∆V) n Maximum voltage n Maximum temperature n Maximum time After fast charge, the bq2002/F optionally tops-off and pulse-trickles the battery per the pre-configured limits. Fast charge may be inhibited using the INH pin. The bq2002/F may also be placed in low-standby-power mode to reduce system power consumption.
