If want to check whether the UCC2895-Q1 function is normal, need to send those signals to make it generate PWM normally?
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If want to check whether the UCC2895-Q1 function is normal, need to send those signals to make it generate PWM normally?
Hi Carson,
you connect the internal error amplifier as a voltage follower and connect the current sensing signal in the normal way, then you can control the current at which the PWM comparator trips by applying a fixed voltage to the EA+ pin as shown here. VC should be in the range 0.85V to 2.8V giving control of the duty cycle from 0% to Dmax, although operation between 0V and 5V won’t damage the controller.
you can just open loop test without CS signal or short to GND directly.