SLUUCB5E June   2020  – July 2022 BQ25792 , BQ25798

 

  1.   BQ25792EVM, BQ25798BKUPEVM and BQ25798EVM (BMS034) Evaluation Module
  2. 1Introduction
    1. 1.1 EVM Features
    2. 1.2 I/O Descriptions
    3. 1.3 Recommended Operating Conditions
  3. 2Test Setup and Results
    1. 2.1 Equipment
    2. 2.2 Equipment Setup
    3. 2.3 Software Setup
      1. 2.3.1 BQSTUDIO using EV2400
      2. 2.3.2 TI Charger GUI for USB2ANY
    4. 2.4 Test Procedure
      1. 2.4.1 Initial Settings
      2. 2.4.2 Communication Verification
      3. 2.4.3 Charge Mode Verification
      4. 2.4.4 OTG Mode Verification
  4. 3PCB Layout Guidelines
  5. 4Board Layout, Schematic and Bill of Materials
    1. 4.1 BMS034 Board Layout
    2. 4.2 BQ2579XEVM (BMS034) Schematics
    3. 4.3 Bill of Materials
  6. 5Revision History

2.4.1 Initial Settings

Use the following steps to enable the EVM test setup.

  1. Make sure Section 2.2 steps have been followed.
  2. Remove the shunt on JP17 to disable charge.
  3. Make sure the PROG pin jumpers, JP22-JP29, are set to the desired frequency and cell count.
  4. Make sure the TS Jumpers are installed to the correct posistions if a thermistor is being simulated.
  5. If using BQStudio, launch the BQSTUDIO software and select Charger then BQ25792EVM, if not already done.
  6. If using TI Charger GUI, go to the TI Charger GUI website and select the charger from the list.
  7. Turn on PS1 and Load #1:
    • Measure ➡ VSYS-PGND (TP26 and TP48) = 8.55 V ±0.2 V
  8. Verify PG LED (D13) is on.
    Note:

    If the PG LED is not lit, confirm a valid PS1 is connected and the correct shunt configuration was placed.

    Note:

    If the device is not communicating and does not ACK, verify that Section 2.2 and the steps in this section have been followed. Verify the voltage across TP42 (PULLUP) and TP49 (AGND) is approximately 3.3 V.