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TPS92682-Q1: How to test the loop characteristics under the constant current mode (CC)?

kay hua
Prodigy 10 points
Part Number: TPS92682-Q1

Tool/software:

Hello, expert:
I am currently designing an LED driving solution using the TPS92682 chip. I would like to know how to test the stability of the loop (the gain-phase characteristics of the loop) when this chip operates in constant current mode? Specifically, how should the injection point or injection circuit be selected and designed?

  • 0
    TI__Expert 5750 points

    Hi Kay,

    This is a very good question, but there is no way to monitor the gain-phase characteristics for this device in constant current mode as the reference is controlled by a digital block. You can refer to our calculator tool to choose your compensation network and we are happy to help diagnose and resolve any issues you encounter. I apologize for the inconvenience and we are here to support you through your design process

    Best,
    Daniel