I'm thinking of getting a TC1427 mosfet driver to power a motor by parallel port. I'm about to place the order, then I thought of a few questions:
Can I drive a 1A load directly from Pin 7 of the TC1427? Or is this a bad idea?
For greater loads, the gate of a mosfet (say, IRF530) gets connected to Pin 7, right?
Thanks,
Michael
In general, that's a bad idea. The mosfet driver is optimized for providing a high peak current into a small capacitive load, such as the gate of the mosfet. This high current is only sustained for a few ns, until the gate charge has been moved.
Devices like these are not designed to provide sustained high currents.
Ok, thanks!
Michael
Although there is nothing wrong with using the chip to drive a MOSFET to give you your sustained high current.
Rob.
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