Hi!
We are using UCC2626 for motor control and current limit for motor. We would like to know what happens when the motor is turned off after reaching the maximum current limit. Will it turn the MOSFET switvches off? If so, after how long can the mosfets be on again?
Kindly let us know.
Regards,
Sriya
Hi Sriya,
If I'm understanding your question correctly, are you asking about the UCC2626 motor driver device's response to overcurrent events (OCP)?
From looking at the device datasheet, there is a mention of pulse-by-pulse overcurrent protection - in which my assumption would be that the output drivers pull the MOSFET gates OFF briefly and then attempt to turn them back ON. I could not find information in this datasheet to specify the retry time or further details about the OCP.
This device is very old (released 20+ years ago) so I don't have better information for this other than what's in the datasheet. If you have samples in hand, you may want to try this out directly on the PCB or move to a newer device in TI's portfolio that meet your requirements & better explain OCP feature specifics.
Best Regards,
Andrew
