Details, datasheet, quote on part number: BQ25703ARSNT
PartBQ25703ARSNT
Category
TitleIC BATT MON MULTI-CHEM 32WQFN
Description

Texas Instruments' bq25703A is a synchronous NVDC battery buck-boost charge controller offering low component count and a high efficiency solution for space-constrained, multi-chemistry battery charging applications.



CompanyTexas Instruments Inc.
DatasheetDownload BQ25703ARSNT datasheet
  

 

Features, Applications

bq25703A I2C Multi-Chemistry Battery Buck-Boost Charge Controller With System Power Monitor and Processor Hot Monitor

Charge to 4-Cell Battery From Wide Range of Input Sources to 24-V Input Operating Voltage Supports USB2.0, USB 3.0, USB 3.1 (Type C), and USB_PD Input Current Settings Seamless Transition Between Buck and Boost Operation Input Current and Voltage Regulation (IDPM and VDPM) Against Source Overload Power/Current Monitor for CPU Throttling Comprehensive PROCHOT Profile, IMVP8 Compliant Input and Battery Current Monitor System Power Monitor, IMVP8 Compliant Narrow-VDC (NVDC) Power Path Management Instant-On With No Battery or Deeply Discharged Battery Battery Supplements System When Adapter is Fully-Loaded Ideal Diode Operation in Supplement Mode Power Up USB Port From Battery (USB OTG) Output to 20.8-V Compatible With USB PD Output Current Limit or 1.2-MHz Programmable Switching Frequency for to 2.2-H Low Profile Inductor Host Control Interface for Flexible System Configuration I2C (bq25703A) Port for Optimal System Performance and Status Reporting Hardware Pin to Set Input Current Limit Without EC Control High Accuracy Regulation and Monitor 0.5% Charge Voltage Regulation 2% Input/Charge Current Regulation 2% Input/Charge Current Monitor 5% Power Monitor Safety Thermal Shutdown Input, System, Battery Overvoltage Protection MOSFET Inductor Overcurrent Protection Low Battery Quiescent Current

Input Current Optimizer (ICO) to Extract Max Input Power Charge Any Battery Chemistry: Li+, LiFePO4, NiCd, NiMH, Lead Acid Package: 4 WQFN

Drones, Bluetooth Speakers, IP Cameras, Detachable, and Tablet PCs and Power Bank Industrial and Medical Equipment Portable Equipment With Rechargeable Batteries

The is a synchronous NVDC battery buckboost charge controller, offering low component count, high efficiency solution for space-constraint, multi-chemistry battery charging applications. The NVDC-1 configuration allows the system to be regulated at battery voltage, but not drop below system minimum voltage. The system keeps operating even when the battery is completely discharged or removed. When load power exceeds input source rating, the battery goes into supplement mode and prevents the input source from being overloaded. The bq25703A charges battery from a wide range of input sources including USB adapter, high voltage USB PD sources and traditional adapters. Device Information

(1) For all available packages, see the orderable addendum at the end of the data sheet.
LODRV1 LODRV2 SYS VBUS ACN /BATDRV bq25703A ACP SRP SRN IADPT, IBAT, PSYS, PROCHOT

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. PRODUCTION DATA.

Features.................................................................. Applications........................................................... Description............................................................. Revision History..................................................... Description (Continued)........................................ Pin Configuration and Functions......................... Specifications.........................................................

Absolute Maximum Ratings...................................... 7 ESD Ratings............................................................ 7 Recommended Operating Conditions....................... 7 Thermal Information.................................................. 8 Electrical Characteristics........................................... 8 Timing Requirements.............................................. 16 Typical Characteristics........................................... 17 Overview................................................................ Functional Block Diagram...................................... Feature Description................................................. Device Functional Modes........................................

Device Support.................................................... Documentation Support....................................... Receiving Notification of Documentation Updates Community Resources.......................................... Trademarks........................................................... Electrostatic Discharge Caution............................ Glossary................................................................

During power up, the charger sets converter to buck, boost or buck-boost configuration based on input source and battery conditions. The charger automatically transits among buck, boost and buck-boost configuration without host control. In the absence of an input source, the bq25703A supports On-the-Go (OTG) function from to 4-cell battery to generate V on VBUS. During OTG mode, the charger regulates output voltage and output current. The bq25703A monitors adapter current, battery current and system power. The flexibly programmed PROCHOT output goes directly to CPU for throttle back when needed.


 

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