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DRV8302 without using the buck regulator

Cornelius Claussen
Prodigy 40 points
Other Parts Discussed in Thread: DRV8302, DRV8303

Hi,


we want to use the DRV8302 but do not need the buck regulator. When EN_BUCK is tied to GND, which of the following pins can be left floating and which need to be tied to GND or some other potential for stable operation of the DRV8302:

PVDD2

VSENSE

BST_BK

PH

PWRGD

SS_TR

RT_CLK

COMP

thanks,

-Cornelius

  • 0
    TI__Mastermind 21320 points

    Hi Cornelius,

    We have the DRV8303. Same gate driver (no buck regulator) but with a SPI interface.

    If you prefer the DRV8302 you can simply leave all pins to the buck regulator unconnected.

    RT_CLK, COMP, VSENSE, PWRGD, PH, PH, BST_BK, PVDD2, PVDD2, EN_BUCK, and SS_TR = No Connect.