STDRIVE101 PWM Output Jitter Inquiry

[ajietb]

Hello Team,

I am planning to use the STDRIVE101 to develop an ESC, and I would like to clarify something before proceeding.

Does the STDRIVE101 introduce any jitter in the PWM output? If so, what is the typical jitter value?

Thank you for your help.

Best regards,
Aji

[Peter BENSCH · Accepted solution]

Welcome @ajietb, to the community!

Jitter is a variation of a switching frequency that is caused intentionally in some systems for reasons of interference radiation, or unintentionally due to incorrect dimensioning or programming.

However, the STDRIVE101 is a Triple half-bridge gate driver that only processes the input signals and inserts dead time depending on RDT. This means that only the duty cycle of the PWM can be varied, but not the frequency in a periodic manner, which is why there is no jitter.

Does it answer your question?

Regards
/Peter