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DRV8873: VOH and VOL values of SDO pin

Prodigy 180 points

Replies: 1

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Part Number: DRV8873

Hi,
I am using DRV8873SPWPRQ1 Motor Driver, where the MCU Interfaced to the driver through SPI. I need the logic level values of SDO pin for to check the Logic compatibility.
From the datasheet the VOH & VOL values of SDO pin is not found. But it shows that the output voltage level of SDO pin is depends on nsleep pin.

Please clarify below points,
1.Is the nSleep pin have any internal pull up or is it required to connect an external pull up to 3.3V?
For both cases what will be the VOH,VOL (min max) values of SDO pin.
Kindly reply.
Warm regards,
Monisha OM
  • Monisha,

    SDO is an output pin. VOH, VOL don't mean anything to DRV8873 and should be defined by the external circuit. The nSLEEP pin and SDO pullup and pulldown resistors decide the output voltage.

    Best Regards,

    Wang Li

    Motor Drive Solutions

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