>> And a gate driver will be bigger and cost more than a
>> simple FET driven directly from a digital output.
>
> OTOH a gate driver is a push-pull, so a double gate
> driver (8-pin SOIC or DIP) can make a H-bridge for a small
> motor. I am not sure I approve of this use, but a Dutch
> PIC Basic site shows such a design, and I sell a suspicious
> amount of TC4427A chips without any FET in the same order...

According to the datasheet TC4427A output resistance is typ 7 Ohm. At
1.5A it would consume 16W power and would require voltage 11V across
it.
A FET would consume only a small fraction of 1W. A push-pull
functionality is not needed for this thread's subject in my opinion.
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