Hi Shawn,
I have just tried that with no luck.
I am now thinking this may be a cause and effect. I am measuring the IN+ pin. On this pin the signal is a PWM filtered by a LP filter which is made up of C54 and R52. C54 is 100uF and R52 is 10K. I am wondering if this is causing a problem on the input. Is there a maximum input capacitance or minimum current etc? When I put my scope I notice that this voltage jumps from 200mV (max drive) to about 400mV at about the same time as the unit resets itself? Or is this what you would expect on this pin after/during a reset?
Thanks
I have just tried that with no luck.
I am now thinking this may be a cause and effect. I am measuring the IN+ pin. On this pin the signal is a PWM filtered by a LP filter which is made up of C54 and R52. C54 is 100uF and R52 is 10K. I am wondering if this is causing a problem on the input. Is there a maximum input capacitance or minimum current etc? When I put my scope I notice that this voltage jumps from 200mV (max drive) to about 400mV at about the same time as the unit resets itself? Or is this what you would expect on this pin after/during a reset?
Thanks