PWM driving of Inductive Loads with VND5T100LAJ-E

[Chiranjeevi9391]

Hello,

I am evaluating the VND5T100AJ-E for an automotive application where I need to drive a 24V contactor. My design requirement is i need to drive the IC through the PWM signal as input.

I have reviewed the datasheet but do not see explicit PWM frequency ratings. My concerns are:

1. Does the VND5T100AJ-E support continuous PWM switching for an inductive load?

2. If this device is not recommended for PWM, could you suggest a similar specification alternative part with the same specifications  that is specifically designed for PWM input @stmicro 

[EThom.3]

I apologise for butting in, but I'm trying to understand what it is you wish to achieve.

You need to drive a 24 V contactor for an automotive application. "Automotive" traditionally means 12 or 24 V, and I assume that you are working with a 24 V system.

If you just need to turn the contactor on and off, I would first check if the contactor can handle at least 30 V. If it can, then just switch the contactor on and off using a regular transistor, such as a FET. If it can't, then I would go for a brushed DC motor driver, with built-in current limiting. These are designed to drive inductive loads, and use the contactor coil as the switching inductor.