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.
|Part number||Order||Topology||Control method||Frequency (Max) (kHz)||UVLO thresholds on/off (V)||Duty cycle (Max) (%)||Gate drive (Typ) (A)||Features||Rating||Operating temperature range (C)|
|Current||1000||11.3/8.3||50||1||Catalog||25 to 25|