Need a little help on the behavior of an L293D h-bridge. It's to be used for a small robot. 2 channel variable PWM provided by a PIC12F509 in increments of 1% duty cycle @ 200HZ.
On the L293D when i apply 5vdc to Pin 2 (input-1) i get full voltage at Pin 3 (motor-1). This happens regardless of the state of the PWM input Pin 1 (Inhibit-1).
I have even physically removed the PIC from the circuit.
Could i have cooked L293D?
Any thoughts?
Thanx,
Zeb
On the L293D when i apply 5vdc to Pin 2 (input-1) i get full voltage at Pin 3 (motor-1). This happens regardless of the state of the PWM input Pin 1 (Inhibit-1).
I have even physically removed the PIC from the circuit.
Could i have cooked L293D?
Any thoughts?
Thanx,
Zeb