I2C 5-A, 1-4 cell buck-boost charger with dual-input and USB PD 3.0 OTG output evaluation module
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Key Document


The BQ25790EVM evaluation module (EVM) is a fully assembled and tested circuit for evaluating the BQ25790 device. The BQ25790 is an integrated switched-mode buck-boost battery charge management device intended for 1-series to 4-series cell li-ion and li-polymer batteries. The charger features a narrow VDC architecture (NVDC) which allows the system to be regulated to a minimum value even if the battery is completely discharged. With USB input source detection, dual input source selection, USB OTG support, and an integrated 16-bit multi-channel analog-to-digital converter (ADC), the BQ25790 is a complete charging solution.

  • Synchronous switch mode buck-boost charger for 1s~4s battery configuration for 5-A charging with 10-mA resolution
  • Support for 3.6-V to 24-V wide range of input sources with MPPT, USB auto-detect, USB PD and wireless input
  • Dual input source selector to drive bi-directional blocking NFETs
  • Power-up USB port from battery (USB OTG) with 2.8-V to 22-V OTG output voltage with 10-mV resolution
  • Low battery quiescent current with <5 µA at battery only operation and <1 µA in charger shutdown mode
  • This circuit design is tested and includes GUI and user's guide

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I2C controlled 5-A, 1-4 cell buck-boost charger with dual-input selector and USB PD 3.0 OTG output evaluation module



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

Technical documentation
Datasheet (1)
Title Type Size (KB) Date
PDF 2048 03 Jun 2020
User guides (1)
Title Type Size (KB) Date
PDF 2407 08 Jul 2020
More literature (1)
Title Type Size (KB) Date
PDF 97 28 Apr 2020

Hardware development (2)

Name Part Number Tool Type
USB2ANY interface adaptor  USB2ANY  Evaluation boards 
USB-Based PC Interface Board for Battery Fuel (Gas) Gauge Evaluation Module  EV2400  Interface adapters 

TI Devices (2)

Part Number Name Product Family
BQ25790  Integrated, NVDC, 5-A 1-cell to 4-cell switch-mode buck-boost battery charger  Battery management ICs 
TLV760  100-mA, 30-V, low-dropout voltage regulator  Power management 

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