SLUUCY4 October   2023

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  7. 2Hardware
    1. 2.1 I/O Descriptions
    2. 2.2 Printed Circuit Board Assembly
    3. 2.3 Best Practices
      1.      15
    4. 2.4 Test Summary
      1. 2.4.1 Equipment
      2. 2.4.2 Cautions
      3. 2.4.3 Test Instructions
  8. 3Hardware Design Files
    1. 3.1 Schematic
    2. 3.2 Board Layout
    3. 3.3 Bill of Materials
  9. 4Additional Information
    1.     Trademarks

Description

The BQ25176J EVM contains the BQ25176J IC, LDO TPS7B8133 and support circuits needed operate the evaluation board. Only an external 5 V power supply is needed to power the EVM and charge a 1-cell battery. Charge Voltage VREG can be set to seven values using switch S1. Charge current is set by R22 (ISET) value from 60 mA to 750 mA. A fix value of 400 mA is selected by JP4.

LDO U2 (TPS7B8133) provides 3.3V for housekeeping voltage, powering LED and providing voltage for CE. The NTC is simulated by a 10k resistor and has the option to be adjusted by a trim pot.