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BQ2002CSN Datasheet

  • BQ2002CSN

  • NiCd/NiMH Fast-Charge Management IC

  • 77.86KB

  • 12頁(yè)

  • TI

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bq2002C
NiCd/NiMH Fast-Charge Management IC
Features
鉃?/div>
Fast charge of nickel cadmium
or nickel-metal hydride batter-
ies
Direct LED output displays
charge status
Fast-charge termination by -鈭哣,
maximum voltage, maximum
temperature, and maximum
time
Internal band-gap voltage ref-
erence
Selectable pulse-trickle charge
rates
Low-power mode
8-pin 300-mil DIP or 150-mil
SOIC
General Description
The bq2002C Fast-Charge IC is a low-
cost CMOS battery-charge controller
providing reliable charge termination
for both NiCd and NiMH battery appli-
cations. Controlling a current-limited
or constant-current supply allows the
bq2002C to be the basis for a cost-
effective stand-alone or system-inte-
grated charger. The bq2002C inte-
grates fast charge with pulsed-trickle
control in a single IC for charging one
or more NiCd or NiMH battery cells.
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:
n
n
n
n
n
Peak voltage detection (PVD)
Negative delta voltage (-鈭哣)
Maximum voltage
Maximum temperature
Maximum time
鉃?/div>
鉃?/div>
鉃?/div>
鉃?/div>
鉃?/div>
鉃?/div>
After fast charge, the bq2002C pulse-
trickles the battery per the pre-
configured limits. Fast charge may be
inhibited using the INH pin. The
bq2002C may also be placed in low-
standby-power mode to reduce
system power consumption.
Pin Connections
Pin Names
TM
LED
BAT
Timer mode select input
Charging status output
Battery voltage input
System ground
TS
V
CC
INH
CC
Temperature sense input
Supply voltage input
Charge inhibit input
Charge control output
TM
LED
BAT
VSS
1
2
3
4
8
7
6
5
CC
INH
VCC
TS
V
SS
8-Pin DIP or
Narrow SOIC
PN-200201.eps
9/97 B
1

BQ2002CSN 產(chǎn)品屬性

  • 75

  • 集成電路 (IC)

  • PMIC - 電池管理

  • -

  • 充電管理

  • 鎳鎘（NiCd）、鎳金屬氫化物（NiMH）

  • 4 V ~ 6 V

  • 0°C ~ 70°C

  • 表面貼裝

  • 8-SOIC（0.154"，3.90mm 寬）

  • 8-SOIC

  • 管件

  • 296-9488-ND - EVAL MOD FOR BQ2002

  • 296-9318-5

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