SLUUCS1 October   2023 BQ25185

 

  1.   1
  2.   Description
  3.   Features
  4. 1Evaluation Model Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specifications
    4. 1.4 Device Information
  5. 2Hardware
    1. 2.1 EVM Setup
    2. 2.2 EVM Connectors and Test Points
  6. 3Testing Procedures
    1. 3.1 Equipment
    2. 3.2 Charge Mode
    3. 3.3 Factory Mode Entry and Exit
  7. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 Layout
    3. 4.3 Bill of Materials
  8. 5Additional Information
    1. 5.1 Trademarks
  9. 6Revision History

3.3 Factory Mode Entry and Exit

To enter the Factory Mode state, connect the equipment as follows:

  • Power Supply PS#1: VIN for the BQ25185EVM at 5V

  • Power Supply PS #2: VBAT of the BQ25185EVM at 3.7 V
  • Scope Channel SC #1: VIN at TP4
  • Scope Channel SC #2: VBAT at TP7
  • Scope Channel SC #3: VSYS at TP5
  • Scope Channel SC #4: TS/MR at TP11

Procedure

  1. Power on PS#2. VSYS should rise to about 3.7 V

  2. Power on PS#1. VSYS should rise to 4.5V

  3. Press SW1 (the pushbutton on the EVM) for at least 10 seconds
  4. Release SW1

  5. Disconnect or power off PS#1 from the BQ25185EVM.

  6. Observe VSYS pulldown to 0 V
  7. After confirming 0 V on VSYS, you may exit Factory mode by inserting VIN ( > VUVLO)

    .

GUID-20230830-SS0I-RZBN-XNFG-5H2X4CV7JVRS-low.pngFigure 3-1 Enter Factory Mode on VIN removal
GUID-20230830-SS0I-SZCZ-QCJC-H0B1NL3NSJ55-low.pngFigure 3-2 Exit Factory Mode with VIN insertion