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DRV8962-Q1: Half bridge driver requirement

santhosha Gowda
Prodigy 10 points
Part Number: DRV8962-Q1
Other Parts Discussed in Thread: DRV8962, DRV8163-Q1, DRV8844, DRV8263-Q1

Tool/software:

Hi Team,

I am looking for Half Bridge Driver(to drive actuator) for 24V HVAC product. I found DRV8962-Q1 for 24V system but it supporting up to 70V maximum input voltage. In Jump start test case I have maintain 48V for 1 min by using TVS diode AND clamping voltage will go up to 77V. In that case IC will get damage. Can you suggest us 80V Half bridge driver. 

thanks,

Santhosh Gowda.

  • 0
    TI__Mastermind 44855 points

    Hi, 

    Thank you for your post. Monday September 1st is national holiday in US. Please expect delay or please wait for our expert assignment on Tuesday US time

  • 0 in reply to Shinya Morita
    TI__Mastermind 45125 points

    Hi Santhosh,

    Thanks for your question. 

    Three integrated drivers in our portfolio with high absolute max are the DRV8962, DRV8844, DRV8263-Q1 (DRV8163-Q1). If the clamping diode will go u to 77 V it will damage any of these devices. We do not have an 80 V driver. Can you design the clamp to not to exceed 65 V the recommended max. operating voltage for the DRV8962?

    For further questions please share the schematic, waveforms while the clamp is activated and control scheme details. Thank you.

    Regards, Murugavel