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TPS568215: Interface method

K.Shidara
Expert 3225 points
Part Number: TPS568215
Other Parts Discussed in Thread: TPS65400

Hi  Team,

Would you advise that do you have power ICs such like TPS568215 which

has USB interface to control?

If no, are there any recommend circuit like reference design?

Thanks

Best regards,

Shidara

  • 0
    TI__Mastermind 19080 points
    Hi Shidara,

    Could you provide below information?
    1. VIN range,
    2. Vout
    3. Max loading current
    4. Do you just want to adjust the Vout voltage via PM Bus, or you need more functions?

    You may refer to TPS65400, it is a really powerful device. Thanks!

    Regards,
    Hao
  • 0 in reply to Sam(MPAA) Zhang
    TI__Expert 3225 points

    Hi Hao-san

    Thank you very much for your support.

    My customer is looking for the convienient device to control below items through USB,

    1. Each DCDC controllor ON/OFF on the board
    2. Output voltage adjusting for each DCDC controllor by DAC control
    3. Reading output voltage through ADC

     Regarding to your inquiry, the customer is thinking below

    1. VIN range : 11V to 13V
    2. Vout : 0.8V to 5.5V
    3. Max loading current : 6A
    4. Do you just want to adjust the Vout voltage via PM Bus, or you need more functions? : more functions above.

    Any advice should be highly appreciated.

    Thanks

    Best regards,

    Shidara

  • 0 in reply to K.Shidara
    TI__Mastermind 19080 points
    Hi Shidara,

    According to the information you provide, I assume that there will be a controller on the board. It will be used to receive the commands via USB and control the ADC/DAC/ON-OFF.
    TPS568215 can be used for this application. To adjust the Vout with DAC, you will need to tie the DAC output to FB via a resistor. Then there will be a fixed relationship between Vout/VFB/VDAC.
    ON-OFF control can be implemented by simply pulling the EN pin high/low by the controller.

    Regards,
    Hao