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BQ24081DRCR-BQ24081DRCRG4
1-cell Li-Ion Charger w/ 1-A FET, Timer Enable and Temperature Sensing
GND
OUT
VSS
STAT1
STAT2 7
GND
ISETSET
bq24080
Battery PackPACK+
PACK– System
System
Interface
VDC
GND
Adapter
0.1F C
0.1 µF
1.13 kW
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bq24080
bq24081SLUS698F –MARCH 2006–REVISED MAY 2017
BQ24080, BQ24081 1-A, Single-Chip, Li-Ion and Li-Pol Charger IC Features Integrated Power FET and Current Sensor for Up 1-A Charge Applications From AC Adapter Precharge Conditioning With Safety Timer Charge and Power-Good Status Output Automatic Sleep Modefor Low Power
Consumption Integrated Charge-Current Monitor Fixed 7-Hour Fast Charge Safety Timer Ideal for Low-Dropout Charger Designs for Single-
Cell Li-Ionor Li-Pol Packsin Space-Limited
Portable Applications Small 3.00-mm× 3.00-mm VSON Package
Applications PDAs, MP3 Players Digital Cameras Internet Appliances Smartphones
DescriptionThe bq24080 and bq24081 are highly integrated and
flexible Li-Ion linear charge devices targeted at
space-limited charger applications. They offer an
integrated power FET and current sensor, high-
accuracy current and voltage regulation, charge
status, and charge termination,ina single monolithic
device. An external resistor sets the magnitudeof the
charge current.
The device charges the batteryin three phases:
conditioning, constant current, and constant voltage.
Chargeis terminated based on minimum current. An
internal charge timer providesa backup safety for
charge termination. The device automatically restarts
the chargeif the battery voltage falls below an
internal threshold. The device automatically enters
sleep mode when theac adapteris removed.
Device Information(1)(1) Forall available packages, see the orderable addendumat
the endofthe data sheet.
Typical Application
