bq2002D/T
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 вћ¤ Fast-charge termination by
rate of rise of temperature,
maximum voltage, maximum
temperature, and maximum
time The bq2002D/T Fast-Charge IC are
low-cost CMOS battery-charge controllers able to provide reliable charge termination for both NiCd and NiMH battery applications. Controlling a
current-limited or constant-current
supply allows the bq2002D/T to be the
basis for a cost-effective stand-alone or
system-integrated charger. The
bq2002D/T 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¤ Internal band-gap voltage reference вћ¤ Optional top-off charge (bq2002T
only) вћ¤ Selectable pulse-trickle charge
rates (bq2002T only) вћ¤ Low-power mode вћ¤ 8-pin 300-mil DIP or 150-mil
SOIC Pin Connections Fast charge is terminated by any of
the following: Fast charge is initiated on application
of the charging supply or battery replacement. For safety, fast charge is
inhibited if the battery temperature …
