bq2002/F
NiCd/NiMH Fast-Charge Management ICs
Features General Description вћ¤ Fast charge of nickel cadmium
or nickel-metal hydride batteries вћ¤ Direct LED output displays
charge status The bq2002 and bq2002/F Fast-Charge
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 the bq2002/F to be the
basis for a cost-effective stand-alone or
system-integrated charger. The
bq2002/F 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. ➤ 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 Fast charge is initiated on application
of the charging supply or battery replacement. For safety, fast charge is
inhibited if the battery temperature …
