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BQ24032RHLRG4 , SINGLE-CHIP CHARGE AND SYSTEM POWER-PATH MANAGEMENT IC(bqTINYTM-III)
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BQ24032ARHLR-BQ24032ARHLRG4-BQ24032ARHLT
SINGLE-CHIP CHARGE AND SYSTEM POWER-PATH MANAGEMENT IC(bqTINYTM-III)
Sample & Support & Product Tools & Technical Community Buy Folder Documents Software bq24030, bq24031, bq24032A, bq24035, bq24038 SLUS618I – AUGUST 2004 – REVISED DECEMBER 2014 bq2403x Single-Chip Charge and System Power-path Management IC (bqTINY™) 1 Features 3 Description The bqTINY™ III-series of devices are highly 1• Small 3.5-mm × 4.5-mm QFN Package integrated Li-ion linear chargers and system power- • Designed for Single-Cell Li-Ion- or Li-Polymer- path management devices targeted at space-limited Based Portable Applications portable applications. The bqTINY III-series offer • Integrated Dynamic Power-Path Management integrated USB-port and DC supply (AC adapter), (DPPM) Feature Allowing the AC Adapter or the power-path management with autonomous power- source selection, power FETs and current sensors, USB Port to Simultaneously Power the System high accuracy current and voltage regulation, charge and Charge the Battery status, and charge termination, in a single monolithic • Power Supplement Mode Allows Battery to device. Supplement the USB or AC Input Current The bqTINY III-series powers the system while • Autonomous Power Source Selection (AC Adapter independently charging the battery. This feature or USB) reduces the charge and discharge cycles on the • Integrated USB Charge Control With Selectable battery, allows for proper charge termination and 100-mA and 500-mA Maximum Input Current allows the system to run with an absent or defective Regulation Limits battery pack. This feature also allows for the system to instantaneously turn on from an external power • Dynamic Total Current Management source in the case of a deeply discharged battery for USB pack. The IC design is focused on supplying • Supports Up to 2-A Total Current continuous power to the system when available from • 3.3-V Integrated LDO Output the AC, USB, or battery sources. • Thermal Regulation for Charge Control (1) Device Information • Charge Status Outputs for LED or System PART NUMBER PACKAGE BODY SIZE (NOM) Interface Indicates Charge and Fault Conditions bq24030 • Reverse Current, Short-Circuit, and Thermal bq24031 Protection bq24032A VQFN (20) 4.50 mm × 3.50 mm • Power Good (AC Adapter and USB Port Present) bq24035 Status Outputs bq24038 • Charge Voltage Options: 4.1 V, 4.2 V, or 4.36 V (1) For all available packages, see the orderable addendum at the end of the datasheet. 2 Applications • Smart Phones and PDAs • MP3 Players • Digital Cameras Handheld Devices • Internet Appliances 4 Power Flow Diagram AC Adapter (2) AC OUT VDC USB Port System GND Q1 D+ PACK+ USB BAT D − 40 mW + VBUS PACK− GND Q3 Q2 bq2403x UDG−04082 (1) See Figure 2 and Functional Block Diagram for more detailed feature information. (2) P-FET back gate body diodes are disconnected to prevent body diode conduction. 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA.
