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DRV2605L-Q1: Questions for DRV2605L-Q1

Wu JW
Intellectual 2935 points
Part Number: DRV2605L-Q1

Hi, Team,

My customer have some questions about the DRV2605L-Q1, could you give some feedback?

1. When using the back-EMF voltage sensing to do the auto adjusting the drive frequency, how much time to do the adjusting?

2. Can we auto adjust the drive frequency? When the finger touch the LRA which change the frequency of the LRA.

  • 0
    TI__Genius 17670 points

    Hello, 

    1. In closed loop operation, the driver adjusts the frequency for each output cycle based on it's previous measurements. After a measurement is taken during one output cycle, it is applied in the next output. The exact timing of this depends on the frequency that is being driven. 
    2. The automatic resonance feature of the DRV2605L-Q1 will automatically adjust the drive frequency. 

    Best Regards, 

    Justin Beigel