We're seeing some unusual behavior on the DRV8434S: if the VSDO supply pin is floating and nSLEEP changes state while VM is present, VSDO will briefly *output* a roughly 4V pulse of voltage that gradually decays. In this scope capture, yellow is VSDO and green is nSLEEP.
This becomes even more of an issue if VSDO and nSLEEP are tied together (either directly or with a resistor, for example 10k) and supplied from the same voltage, since if they are disconnected from the voltage source (allowed to float) at the same time with VM present, the VSDO pulse will cause nSLEEP to go high and low again, which triggers more pulses and leads to repeating oscillations on the two pins.
A pull-down resistor does not stop the pulses unless it is about 60 ohms or stronger. Is this a known issue with the DRV8434S? Is there a suggested solution or workaround?
