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DRV8834: Decay mode at Itrip

Part Number: DRV8834

Hi all

Would you mind if we ask DRV8834?


We would like to confirm the decay mode at Itrip.

In case of Itrip, the decay mode is mixed decay.

It doesn't configure the any decay mode.

Is our recognition correct?


In spite of M1 setting(high or low), in case of Itrip, the decay will be mixed decay.

Is our recognition correct?

Kind regards,

Hirotaka Matsumoto

  • Matsumoto-san,

    Q1: A 10 μA (typical) internal current source is on the xDECAY pins. if leave xDECAY pin open, xDECAY pin is higher than 2V and set fast decay mode.

    Q2: M0/M1 pin setting (micro-step mode setting) is not related to xDECAY pin setting. If you leave xDECAY pin open, DRV8834 is set to fast decay mode which is not related to M0/M1 setting.