I2C Controlled Single Cell USB NVDC 3A Charger with 1.5A Synchronous OTG Boost


Design files


TIDA-00280 is an evaluation module for fully-integrated single-cell NVDC 3A charger bq24296/bq24297 with 1.5A synchronous boost operation. This board could be used to evaluate the performance of USB detection, the flexibility to change the charging profile and OTG operation. The two charger ICs are widely used in personal portable electronics including smart phone, tablets and WiFi routers.

  • Fast charging with up to 3A charging current to support high capacity battery pack
  • Input voltage regulation (VDPM) to support third party adapters
  • D+/D- USB detection compatible to USB BC1.2, non-standard adaptor detection
  • 1.5A OTG with adjustable output voltage
  • Pin-to-pin compatible to bq2419x

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDU593.PDF (1238 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDRB90.PDF (65 K)

Detailed schematic diagram for design layout and components

TIDRB91.PDF (86 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRB92.ZIP (195 K)

Files used for 3D models or 2D drawings of IC components

TIDC699.ZIP (516 K)

Design file that contains information on physical board layer of design PCB


Includes TI products in the design and potential alternatives.

Battery charger ICs

BQ242961-cell, 3-A, I2C controlled buck charger with adjustable voltage & USB OTG and min system regulation

Data sheet document-pdfAcrobat PDF open-in-new HTML
Battery charger ICs

BQ24297I2C controlled 1-cell, 3-A battery charger with USB NVDC-1, adj. voltage, and USB OTG with D+/D-

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
Test report TIDA-00280 Test Results Oct. 10, 2014

Related design resources

Hardware development

BQ24296EVM-021 I2C Controlled 3A Single Cell USB NVDC-1 Charger with Adjustable Voltage USB OTG Evaluation Module BQ24297EVM-021 I2C Controlled 3A Single Cell USB NVDC-1 Charger with Adjustable Voltage USB OTG Evaluation Module

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