BQ25731EVM

I2C NVDC 1 to 5 cell, 16-A, buck-boost charger controller evaluation module

BQ25731EVM

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Overview

The BQ25731EVM evaluation module (EVM) is an I2C controlled NVDC (narrow voltage DC) buck-boost charge controller with N-channel MOSFET selector and current monitoring. The input voltage range for the buck converter is between 3.5 V and 26 V, with a programmable output of 1 to 5 cells and a charge output current range of 128 mA to 15 A. This EVM doesn’t include the EV2400 interface device; this will have to be ordered separately to evaluate the BQ25731 EVM.

Features
  • Host-controlled NVDC 1S to 5S battery buck-boost charger with 3.5-V to approximately 26-V input; 1-V to approximately 23-V charging output and 3-V to approximately 24-V OTG output
  • Supports USB 2.0, USB 3.0, USB 3.1 ( USB Type-C™) and USB_PD platforms
  • Supports 5-mΩ current sense for high current, high efficiency
  • Supports 400-kHz or 800-kHz switching frequency for high efficiency
  • Patented switching frequency dithering pattern for meeting IEC-CISPR 32 EMI specification
  • Flexible power path or non-power path option
Battery charger ICs
BQ25731 I2C 1-5 cell NVDC buck-boost battery charge controller with USB type-C PD support

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Evaluation board

BQ25731EVM – I2C NVDC 1 to 5 cell, 16-A, buck-boost charger controller evaluation module

TI's Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

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Type Title Date
* User guide BQ2573x Evaluation Module (Rev. A) Jan. 19, 2021
More literature BQ25731EVM EU Declaration of Conformity (DoC) Jun. 19, 2020

Related design resources

Software development

APPLICATION SOFTWARE & FRAMEWORK
BQSTUDIO Battery Management Studio (bqStudio) Software

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