BQ24032ARHLR Datasheet

PMIC - Battery Management


The BQ24032ARHLR series of devices are highly inte-grated Li-ion linear chargers and system power-pathmanagement devices targeted at space-limited portable applications. The BQ24032ARHLR series offer integrated USB-port and DC supply (AC adapter),power-path management with autonomouspower-source selection, power FETs and currentsensors, high accuracy current and voltage regu-lation, charge status, and charge termination, in asingle monolithic device.The bqTINY-III powers the system while independently charging the battery. This feature reduces thecharge and discharge cycles on the battery, allowsfor proper charge termination and allows the systemto run with an absent or defective battery pack. Thisfeature also allows for the system to instantaneouslyturn on from an external power source in the case ofa deeply discharged battery pack. The IC design is focused on supplying continuous power to the systemwhen available from the AC, USB, or battery sources. BQ24032ARHLR Features • Small 3,5 mm × 4,5 mm QFN Package• Designed for Single-Cell Li-Ion- orLi-Polymer-Based Portable Applications• Integrated Dynamic Power-Path Management(DPPM) Feature Allowing the AC Adapter or the USB Port to Simultaneously Power theSystem and Charge the Battery• Power Supplement Mode Allows Battery toSupplement the USB or AC Input Current port• Autonomous Power Source Selection (ACinteAdapter or USB)• Integrated USB Charge Control With Selectable 100-mA and 500-mA Maximum Input Current Regulation Limits• USB High Current Regulation Limit, 1 A Max indepen• Dynamic Total Current Management for USB• Supports Up to 2-A Total Current• 3.3-V Integrated LDO Output• Thermal Regulation for Charge Control• Charge Status Outputs for LED or System Interface Indicates Charge and Fault Conditions• Reverse Current, Short-Circuit, and Thermal Protection• Power Good (AC Adapter and USB Port Present) Status Outputs• Charge Voltage Options: 4.2 V or 4.36 V BQ24032ARHLR Applications • Smart Phones and PDA• MP3 Players• Digital Cameras Handheld Devices• Internet Appliances


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