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BQ24023DRCR Datasheet(PDF) 1 Page - Texas Instruments

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Part # BQ24023DRCR
Description  SINGLE-CHIP, LI-ION AND LI-POL CHARGER IC WITH AUTONOMOUS USB-PORT AND AC-ADAPTER SUPPLY MANAGEMENT (bqTINY-II)
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

BQ24023DRCR Datasheet(HTML) 1 Page - Texas Instruments

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FEATURES
DESCRIPTION
APPLICATIONS
1
2
3
4
10
9
8
5
AC
USB
OUT
VSS
STAT1
STAT2
7
6
TS
ISET2
ISET1
bq24020DRC
+
BATTERY PACK
PACK+
PACK−
SYSTEM
SYSTEM
INTERFACE
VDC
GND
VBUS
GND
D+
D −
USB
PORT
AC
ADAPTER
UDG−02184
RSET
CE
bq24020,, bq24022,, bq24023
bq24024, bq24025, bq24026
bq24027
SLUS549D – DECEMBER 2002 – REVISED MARCH 2006
SINGLE-CHIP, LI-ION AND LI-POL CHARGER IC WITH AUTONOMOUS USB-PORT AND
AC-ADAPTER SUPPLY MANAGEMENT (bqTINY™-II)
• Small 3 mm x 3 mm MLP Package
The bqTINY-II series are highly-integrated, flexible
Li-Ion linear charge and system power management
• Charges and powers Systems from Either AC
devices for space-limited charger applications. In a
Adapter or USB With Autonomous
single
monolithic
device,
the
bqTINY-II
offers
power-Source Selection
integrated
USB-port
and
ac-adapter
supply
• Integrated USB Control With Selectable 100
management
with
autonomous
power-source
mA and 500 mA Charge Rates
selection, power-FET and current-sensor interfaces,
• Ideal for Low-Dropout Charger Designs for
high-accuracy current and voltage regulation, charge
status, and charge termination.
Single-Cell Li-Ion or Li-pol Packs in Space
Limited portable applications
The bqTINY-II automatically selects the USB-port or
• Integrated power FET and Current Sensor for
the ac-adapter as the power source for the system.
Up to 1-A Charge applications From AC
In the USB configuration, the host can select from
two preset charge rates of 100 mA or 500 mA. In the
Adapter
ac-adapter configuration, an external resistor sets
• Precharge Conditioning With Safety Timer
the system or charge current.
• power Good (AC Adapter Present) Status
The bqTINY-II charges the battery in three phases:
Output
conditioning, constant current, and constant voltage.
• Optional Battery Temperature Monitoring
Charge is terminated based on minimum current. An
Before and During Charge
internal charge timer provides a backup safety for
• Automatic Sleep Mode for Low-power
charge termination. The bqTINY-II automatically
restarts the charge if the battery voltage falls below
Consumption
an internal threshold. The bqTINY-II automatically
enters sleep mode when both supplies are removed.
• PDAs, MP3 Players
• Digital Cameras
• Internet appliances
• Smartphones
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
bqTINY is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2002–2006, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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