BQ2002C Datasheet PDF

UNITRODE BQ2002C

The bq2002C Fast-Charge IC is a lowcost CMOS battery-charge controller providing reliable charge termination for both NiCd and NiMH battery applications. The bq2002C integrates fast charge with pulsed-trickle control in a single IC for charging one or more NiCd or NiMH battery cells. For safety, fast charge is inhibited if the battery temperature and voltage are outside configured limits.

Part No.	BQ2002C
Datasheet	BQ2002C Download
Manufacturer	UNITRODE
Description	NiCd/NiMH Fast-Charge Management
Buy	Stock & Price

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 ➤ 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 bq2002C to be the basis for a costeffective 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 bq2002C pulsetrickles the battery per the preconfigured limits. Fast charge may be inhibited using the INH pin. The bq2002C may also be placed in lowstandby-power mode to reduce system power consumption. Pin Co...