I'm using this device to power an inductive device, however, the recommended inductive load for the chip is not specified in the datasheet. What is the recommended inductive load this device should interact with?
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I'm using this device to power an inductive device, however, the recommended inductive load for the chip is not specified in the datasheet. What is the recommended inductive load this device should interact with?
Hi Rick,
Thanks for the response, and I figured out the issue. I went back to the original pcb design the device is mounted to and saw that the ground/heat sink pins were routed through a common wire to ground instead of a wire for each pin, as the datasheet calls for. I wired up a new circuit with independent ground connections for each of the four device ground pins and now driver works great and no longer heats up during operation. Looks like you were right.
Interestingly, when I put small inductors in series with the driver outputs I get better results. However, this improved performance is subtle compared to the improvement seen by proper grounding.
Thanks,
Tom