BQ25720 evaluation module SMBus, 1- to 4-cell, 8-A, NVDC buck-boost battery charger controller


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The BQ25720 evaluation module (EVM) is a SMBus 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 4 cells and a charge output current range of 64 mA to 8 A. This EVM doesn’t include the EV2400 interface device; this will have to be ordered separately to evaluate the BQ25720EVM.

  • Host-controlled NVDC 1-S to 4-S battery buck-boost charger with 3.5-V to 26-V input, 1-V to 19.2-V charge output and 3-V to 24-V OTG output
  • Supports USB 2.0, USB 3.0, USB 3.1 ( USB Type-C®) and USB Power Delivery (PD) platforms
  • Supports 5-mohm current sense for high current, high efficiency
  • TI patented switching frequency dithering pattern for meeting IEC-CISPR 32 EMI specification
  • TI patented pass through mode (PTM) achieving 99% efficiency

Does not include EV2400 communication box.

Battery charger ICs
BQ25720 SMBus 1- to 4-cell NVDC buck-boost battery charge controller with power path and USB-C® PD OTG


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Evaluation board

BQ25720EVM — BQ25720 evaluation module SMBus, 1- to 4-cell, 8-A, NVDC buck-boost battery charger controller

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Technical documentation

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Type Title Date
* User guide BQ25720, BQ25723 Evaluation Module PDF | HTML 19 May 2021
Data sheet BQ25720 SMBus 1- to 4-Cell Narrow VDC Buck-Boost Battery Charge Controller With System Power Monitor and Processor Hot Monitor datasheet PDF | HTML 25 May 2021
Certificate BQ25720EVM EU Declaration of Conformity (DoC) 21 May 2021

Related design resources

Software development

BQSTUDIO Battery Management Studio (bqStudio) Software

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