Other Parts Discussed in Thread: DRV110,
Hi part of f the requirement is the solenoid be hot swap. Using a DRV120EVM board, while hot swapping causes the device to fail.
Performing the identical test on a EVM110 no failures occurred. Comparing the two EVMS the mosfet used on the DRV110 has a 600v rating from drain to source.
Is it possible to achieve identical performance with a DRV120?
The input is voltage is 24v's the hold current is set to 50ma (measures with a current probe) , the hit current pot is fully counter clock wise and
the PWM frequency is set to minimize squeal. The maximum DC current draw from the solenoid is ~130ma's with a resistant of 180ohms.
btw do you have any advice on choosing the optimal PWM frequency?
thanks