SLUUD62B September   2025  – May 2026

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specifications
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 I/O Information
    2. 2.2 Jumper Information
    3. 2.3 Equipment
    4. 2.4 Hardware Setup
  9. 3Software
    1. 3.1 Software Setup
      1. 3.1.1 BQSTUDIO
      2. 3.1.2 TI-CHARGER-GUI
    2. 3.2 Test Procedure
      1. 3.2.1 Initial Power Up
      2. 3.2.2 I2C Register Setup
      3. 3.2.3 Forward/Charge/Sink Mode Verification
      4. 3.2.4 Reverse/OTG/Source Mode Verification
      5. 3.2.5 Helpful Tips
  10. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layout
      1. 4.2.1 PCB Layout Guidelines
    3. 4.3 Bill of Materials (BOM)
  11. 5Additional Information
    1.     Trademarks
  12. 6Revision History

1.1 Introduction

The BMS083 printed circuit board (PCB) is a complete charger evaluation module for the BQ2569X/9X-Q1 family of battery chargers. The BQ2569X/9X-Q1 is an integrated switched-mode buck-boost battery charge management device in HOTROD (QFN) package, intended for charging 1-series to 7-series cell Li chemistry batteries with up to 3.3A charge current. In forward/charge/sink mode, the IC operates from 2.5V to 34V input voltage and withstands up to 45V. The BQ25690 NVDC topology has an external BATFET that provides a regulated minimum system voltage when the battery is low and measures termination current independent of system load current. The default charge voltage and current are set using resistors. The device defaults to forward/charge/sink mode but can be changed using I2C to reverse/OTG/source mode. The BQ25690 also allows forward/reverse bypass (pass through) mode using the I2C registers. In addition, the I2C registers can change the switching frequency as well as the voltage and current regulation settings. The BQ25690 has maximum power point tracking (MPPT) feature for use with HiZ power sources like solar panels.

This user's guide provides detailed testing instructions for the BQ2569X/9X-Q1 evaluation modules (EVMs). Also included are descriptions of the necessary equipment, equipment setup, and procedures. The reference documentation contains the PCB layouts, schematics, and the bill of materials (BOM).

Throughout this user's guide, the abbreviations EVM, BQ2569X/9X-Q1EVM, BMS083, and the term evaluation module are synonymous with the BMS083 evaluation module, unless otherwise noted.

BQ25690EVM
Caution

Caution: Hot surface.

Contact can cause burns.

Do not touch!