bq2002E/G
NiCd/NiMH Fast-Charge Management ICs
Features General Description вћ¤ The bq2002E and bq2002G FastCharge ICs are low-cost CMOS battery-charge controllers providing reliable charge termination for both NiCd
and NiMH battery applications. Controlling a current-limited or constant-current supply allows t h e
bq2002E/G to be the basis for a costeffective stand-alone or system-integrated charger. The bq2002E/G integrates fast charge with optional top-off
and pulsed-trickle control in a single
IC for charging one or more NiCd or
NiMH battery cells. вћ¤
вћ¤ 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 вћ¤ Internal band-gap voltage reference вћ¤ Optional top-off charge вћ¤ Selectable pulse trickle charge
rates вћ¤ Low-power mode вћ¤ 8-pin 300-mil DIP or 150-mil
SOIC Pin Connections Fast charge is initiated on application
of the charging supply or battery replacement. For safety, fast charge is
inhibited if the battery temperature
and voltage are outside configured
limits. Fast charge is terminated by any of
the following: …
