The UCC3810-DIE is a high-speed BiCMOS controller integrating two synchronized pulse
width modulators for use in off-line and dc-to-dc power supplies. The UCC3810-DIE provides perfect
synchronization between two PWMs by using the same oscillator. The oscillator’s sawtooth waveform
can be used for slope compensation if required.
Using a toggle flip-flop to alternate between modulators, the UCC3810-DIE ensures that
one PWM does not slave, interfere, or otherwise affect the other PWM. This toggle flip- flop also
ensures that each PWM is limited to 50% maximum duty cycle, insuring adequate off-time to reset
magnetic elements.
The UCC3810-DIE is a high-speed BiCMOS controller integrating two synchronized pulse
width modulators for use in off-line and dc-to-dc power supplies. The UCC3810-DIE provides perfect
synchronization between two PWMs by using the same oscillator. The oscillator’s sawtooth waveform
can be used for slope compensation if required.
Using a toggle flip-flop to alternate between modulators, the UCC3810-DIE ensures that
one PWM does not slave, interfere, or otherwise affect the other PWM. This toggle flip- flop also
ensures that each PWM is limited to 50% maximum duty cycle, insuring adequate off-time to reset
magnetic elements.