SLUUBA2B March   2015  – November 2015 BQ25890 , BQ25892 , BQ25895 , BQ25895M , BQ25896

 

  1.   bq25890EVM, bq25892EVM, bq25895EVM, bq25896EVM and bq25895MEVM(PWR664)
    1.     Trademarks
    2. 1 Introduction
      1. 1.1 EVM Features
      2. 1.2 I/O Descriptions
    3. 2 Test Summary
      1. 2.1 Equipment
      2. 2.2 Equipment Setup
      3. 2.3 Procedure
        1. 2.3.1 Communication Verification
        2. 2.3.2 Charger Mode Verification
        3. 2.3.3 Boost Mode Verification
        4. 2.3.4 Helpful Hints
    4. 3 PCB Layout Guideline
    5. 4 Board Layout, Schematic, and Bill of Materials
      1. 4.1 PWR664 PCB Layouts
      2. 4.2 Schematics
      3. 4.3 Bill of Materials
  2.   Revision History

2.3.3 Boost Mode Verification

  1. Turn off and disconnect PS#1
  2. If the constant voltage load connected from BAT+ to GND is not a four-quadrant supply (sources current), remove the load and use the power source disconnected in step one, set to 3.7-V and 2-A current limit and connect between BAT+ and GND
  3. Check the OTG configurations option in the GUI
    4. fig09_sluuba2.gif
  4. Apply 10 Ω (5 W or greater) across J2 (PMID(+) to GND(–))

  • Measure: V: (TP2 (PMID) and TP6 (GND)) = 5.0 V ±200 mV