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BQ2002T-BQ2002TPN-BQ2002TSN Fast Delivery,Good Price
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BQ2002TTIN/a2361avaiNiCd/NiMH Gating Charge Management IC With dT/dt Termination
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BQ2002TSN ,NiCd/NiMH Gating Charge Management IC With dT/dt TerminationGeneral DescriptionFast charge is terminated by any ofthe following:➤ Fast charge of nickel cadmium ..
BQ2002TSN ,NiCd/NiMH Gating Charge Management IC With dT/dt TerminationGeneral DescriptionFast charge is terminated by any ofthe following:➤ Fast charge of nickel cadmium ..
BQ2003 ,NiCd/NiMH Switchmode Charge Management IC W/Negative dV, dT/dt TerminationFunctional Descriptionand RB2 is the resistor connected to the negative bat-tery terminal. See Figu ..
BQ2003PN ,NiCd/NiMH Switchmode Charge Management IC W/Negative dV, dT/dt TerminationGeneral DescriptionFast charge may begin on applica-tion of the charging supply, replace-➤ Fast cha ..
BQ2003PN-N ,NiCd/NiMH Switchmode Charge Management IC W/Negative dV, dT/dt TerminationGeneral DescriptionFast charge may begin on applica-tion of the charging supply, replace-➤ Fast cha ..
BQ2003S ,NiCd/NiMH Switchmode Charge Management IC W/Negative dV, dT/dt TerminationFunctional Descriptionand RB2 is the resistor connected to the negative bat-tery terminal. See Figu ..
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BQ2002T-BQ2002TPN-BQ2002TSN
NiCd/NiMH Gating Charge Management IC With dT/dt Termination
Features Fast chargeof nickel cadmium nickel-metal hydride batter-
ies Direct LED output displays
charge status Fast-charge terminationby
rateof riseof temperature,
maximum voltage, maximum
temperature, and maximum
time Internal band-gap voltage ref-
erence Optional top-off charge (bq2002T
only) Selectable pulse-trickle charge
rates (bq2002T only) Low-power mode 8-pin 300-mil DIPor 150-mil
SOIC
General Description

The bq2002D/T Fast-ChargeIC are
low-costCMOS battery-charge control-
lers ableto provide reliable chargeter-
minationfor both NiCd and NiMH bat-
tery applications. Controllinga
current-limitedor constant-current
supply allowsthe bq2002D/Ttobethe
basisfora cost-effective stand-aloneor
system-integrated charger. The
bq2002D/T integrates fast charge with
optional top-off and pulsed-trickle con-
trolina singleICfor charging oneor
more NiCd orNiMH batterycells.
Fast chargeis initiatedon application the charging supplyor batteryre-
placement. For safety, fast chargeis
inhibitedif the battery temperature
and voltage are outside configured
limits.
Fast chargeis terminatedby anyof
thefollowing: Rateof temperature rise Maximum voltage Maximum temperature Maximum time
After fast charge,the bq2002T option-
ally tops-off and pulse-trickles the
battery perthe pre-configured limits.
Fast charge maybe inhibited using
the INH pin. The bq2002D/T maybe
placedin low-standby-power modeto
reduce system powerconsumption.
NiCd/NiMH Fast-Charge Management ICs
bq2002D/T
Timer mode select input
LED Charging status output
BAT Battery voltage input
VSS System ground Temperature sense input
VCC Supply voltage input
INH Charge inhibit input Charge control output
Pin Connections Pin Names

SLUS133 – APRIL 2009
bq2002D/T Selection Guide
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