SLUUCT6 April   2024 BQ25186

 

  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 EVM Setup
    2. 2.2 EVM Connectors and Test Points
  8. 3Implementation Results
    1. 3.1 Testing Procedures
      1. 3.1.1 Equipment
      2. 3.1.2 Charge Mode
      3. 3.1.3 Ship Mode
      4. 3.1.4 Shutdown Mode
  9. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layout
    3. 4.3 Bill of Materials
  10. 5Additional Information
    1. 5.1 Trademarks

3.1.2 Charge Mode

Connect the equipment as follows:

  • Power Supply PS #1: VIN of the BQ25186EVM at 5V
  • Power Supply PS #2: VBAT of the BQ25186EVM at 3.7V
  • Scope Channel SC#1: VIN at TP5
  • Scope Channel SC#2: VBAT at TP8
  • Scope Channel SC#3: VSYS at TP6

Turn ON power supply PS #2, then turn ON supply PS #1. With PS #1 enabled, VSYS rises to the level of 4.5V and the /PG LED turns on to indicate Power Good. The device begins to charge as long as TS is left at default configuration, J13 connects the /CE pin to low, and there are no other faults.

BQ25186EVM BQ25186EVM ConnectionsFigure 3-1 BQ25186EVM Connections

To adjust the charge current or change other parameters, connect the USB2ANY to the EVM and then startup the TI Charger GUI.

BQ25186EVM TI Charger GUI Device SelectionFigure 3-2 TI Charger GUI Device Selection

Select BQ25186 from the charger selection. Click Quick Start or Register Map.

BQ25186EVM BQ25186EVM ConnectedFigure 3-3 BQ25186EVM Connected

The quick start is shown in Figure 4-4. Disabling the charge through I2C overrides the charge disable pin.

BQ25186EVM BQ25186EVM GUI Quick StartFigure 3-4 BQ25186EVM GUI Quick Start

The register map is shown in Figure 4-5.

BQ25186EVM BQ25186 Register MapFigure 3-5 BQ25186 Register Map