• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 64 subscribers
  • Views 315 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

BQ2060A LED Status on Power Up

Yollande Chang
Prodigy 45 points
Other Parts Discussed in Thread: ALLIGATOR

I have a BQ2060AEVM unit.  The plugin interface from the board to the 2200 pc interface card is defective.  It lacks continuity on the Vcc  wire and the board connection, its missing the plugin contact lug.    As a work around connected the Vcc and GND pins with small alligator clip cables to the proper resources.  I expected the LEDs to cycle through when power (3.3V) is supplied but it didn't.   The EVM manual states the HDQ pin should be grounded when not in use.  Which I am using for communication to a uC.  Should the SMBC and SMBD pins be grounded if not in use for proper operation? Is the worse case scenario possible - defective board or do I need to initialize the board with the PC software first before HDQ communication?

  • 0
    TI__Expert 3865 points

    You should have the following connections:

    1. Power supply - EVM: Power and Gnd connection

    2. EVM-EV2300: HDQ and Gnd connection

    You can leave the SMBC and SMBD floating. Pull-down resistors are populated on the EVM.

    The LEDs are RM indicator, so if you're below EDV and your RM is too low, the LEDs will not light up even if you press the button.

     

    Hope this help.

     

    Regards,

    Jackie