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BQ24313DSGR Datasheet(PDF) 1 Page - Texas Instruments |
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BQ24313DSGR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 22 page 1 FEATURES APPLICATIONS DESCRIPTION AC Adapter VDC GND 1 F m 1 2 7 5 4 6 8 bq24313 bq24315 bq24080 ChargerIC SYSTEM IN OUT VBAT FAULT CE 1 F m APPLICATIONSCHEMATIC bq24313 bq24315 www.ti.com............................................................................................................................................... SLUS817A – MARCH 2008 – REVISED NOVEMBER 2008 OVERVOLTAGE AND OVERCURRENT PROTECTION IC AND Li+ CHARGER FRONT-END PROTECTION IC • 5.5V LDO Mode Voltage Regulation 23 • Provides Protection for Three Variables: • Available in Space-Saving Small 8 Lead 2mm ×2mm SON – Input Overvoltage, with Rapid Response in < 1 µs – User-Programmable Overcurrent with • Mobile Phones and Smart Phones Current Limiting • PDAs – Battery Overvoltage • MP3 Players • 30V Maximum Input Voltage • Low-Power Handheld Devices • Supports up to 1.5A Input Current • Bluetooth™ Headsets • Robust Against False Triggering Due to Current Transients • Thermal Shutdown • Enable Input • Status Indication – Fault Condition The bq24313 and bq24315 are highly integrated circuits designed to provide protection to Li-ion batteries from failures of the charging circuit. The IC continuously monitors the input voltage, the input current, and the battery voltage. The output acts as a linear regulator. The output is regulated to VO(REG) for inputs between VO(REG) and the overvoltage threshold. If an input overvoltage condition occurs, the IC immediately removes power from the charging circuit by turning off an internal switch. In the case of an overcurrent condition, it limits the system current at the threshold value, and if the overcurrent persists, switches the pass element OFF after a blanking period. Additionally, the IC also monitors its own die temperature and switches off if it exceeds 140°C. The input overcurrent threshold is user-programmable. The IC can be controlled by a processor and also provides status information about fault conditions to the host. 1 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. 2 PowerPAD is a trademark of Texas Instruments. 3 Bluetooth is a trademark of Bluetooth SIG, Inc. PRODUCTION DATA information is current as of publication date. Copyright © 2008, 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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