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BQ24023DRCR Datasheet(PDF) 1 Page - Texas Instruments |
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BQ24023DRCR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 22 page www.ti.com 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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