SLUUBG6 May   2017 BQ25700A , BQ25703A

 

  1.   bq2570x Evaluation Module
    1.     Trademarks
    2. 1 Introduction
      1. 1.1 EVM Features
      2. 1.2 General Description
    3. 2 Test Summary
      1. 2.1 Definitions
      2. 2.2 Equipment
      3. 2.3 Equipment Setup
      4. 2.4 Procedure
        1. 2.4.1 Charge Function
        2. 2.4.2 OTG Function
    4. 3 Bill of Materials, Board Layout, and Schematics
      1. 3.1 Bill of Materials
      2. 3.2 Board Assembly Layout
      3. 3.3 Schematic

2.4.2 OTG Function

Use the following for OTG function settings:

  1. Set EN_OTG high on J2 (EN_OTG) or short TP37 to TP35 (EN_OTG).
  2. Connect a 7-V power supply to the VBAT load. Remove the VIN power supply from J1. (Connection must be physically removed from board).
  3. Write the Charge Voltage Register to 0x20D0.
  4. Write “0200” to the OTG voltage register. Write “4000” to the OTG current registers.
  5. Select EN_OTG in Charge Option 3.
    Measure → V(J1(VIN)) = 5 V ±1 V
    6. fig04_sluubg6.jpgFigure 4. EN_OTG