BQ24352DSGR ,Over-Voltage and Over-Current Charger Front-End Protection IC With FET, 7.1 Input OVP 8-WSON -40 to 85FEATURES • Soft-Start to Prevent Inrush Currents2• Robust Protection • Soft-Stop to Prevent Voltage ..
BQ24380DSGR ,Overvoltage/Overcurrent Protection IC and Li+ Charger Front End Protection IC with LDO Mode, 6.3 OVP 8-WSON -40 to 125Features 3 DescriptionThe bq2438x family of devices are charger front-end1• Input Overvoltage Prote ..
BQ24380DSGT ,Overvoltage/Overcurrent Protection IC and Li+ Charger Front End Protection IC with LDO Mode, 6.3 OVP 8-WSON -40 to 125 SLUS805C–APRIL 2008–REVISED AUGUST 20155 Pin Configuration and FunctionsDSG Package8-Pin WSON With ..
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BQ24382DSGR ,Overvoltage/Overcurrent Protection IC and Li+ Charger Front-End Protection IC with LDO Mode,10.5 OVP 8-WSON -40 to 125 SLUS805C–APRIL 2008–REVISED AUGUST 20155 Pin Configuration and FunctionsDSG Package8-Pin WSON With ..
BUK98150-55 ,TrenchMOS transistor Logic level FET
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BQ24352DSGR
Over-Voltage and Over-Current Charger Front-End Protection IC With FET, 7.1 Input OVP
bq24350 bq24352 www.ti.com............................................................................................................................................................... SLUS943A –MAY 2009–REVISED JUNE 2009 Over-Voltage and Over-Current Charger Front-end Protection IC With Integrated Charging FET Check for Samples: bq24350 bq24352 1 FEATURES • Soft-Start to Prevent Inrush Currents 2• Robust Protection • Soft-Stop to Prevent Voltage Spikes – Input Over-Voltage Protection • 30V Maximum Input Voltage – Input Over-Current Protection • Supports Up to 1A Load Current – Accurate Battery Over-Voltage Protection • Small 2mm × 2mm 8pin SON Package – Thermal Shutdown APPLICATIONS – Output Short-Circuit Protection • Mobile Phones • Integrated Charging FET • Low-Power Handheld Devices • LDO Mode Operation • Current Limited Power Supply for Host Controller DESCRIPTION The bq24350/2 is a highly integrated circuit designed to provide protection to Li-ion batteries from failures of the charging circuit. The IC continuously monitors the input voltage and the battery voltage. In case of an input over-voltage condition, the IC will turn off the internal power FET after a blanking time. If the battery voltage rises to unsafe levels during charging process, power is removed from the system. If the input current exceeds the over current threshold for a limited time, the IC will turn off the output power. The integrated charging FET can regulate the charge voltage and current according to the control from the host. The device can also provide a voltage source with over voltage and over current protection for host controller. WHITE SPACE WHITE SPACE WHITE SPACE TYPICAL APPLICATION CIRCUIT PIN ASSIGNMENT WHITE SPACE WHITE SPACE Analog bq24350/2 Base Band 1 8 OUT ACIN ACIN CHGIN Chip AC CHGIN 2 7 OUT C CACIN Q1 CHGIN ACIN 1 mF 1 mF 3 6 CHGIN GND GATDRV Q2 GATDRV 4 5 GATDRV VBAT OUT ISENS 0 .2 W GND RBAT VBAT VBAT 200 kW PACK+ PACK- 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. 2PowerPAD is a trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2009, Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
