The UCC28220 and UCC28221 are a family of BiCMOS interleaved dual channel PWM controllers.
The UCC28220 and UCC28221 are a family of BICMOS interleaved dual channel PWM controllers designed for high power offline, telecom, and datacom power supplies. They utilize peak current mode control to ensure current sharing between the two channels and feature a precise maximum duty cycle clamp adjustable between 60% and 90% per channel.
| Operating VDD range | 8 to 14 V |
|---|---|
| UVLO start threshold (UCC28220) | 10 V |
| UVLO start threshold (UCC28221) | 13 V |
| High voltage JFET current | 50 A to 100 A |
The UVLO start threshold for the UCC28220 is 10 V.
The UVLO start threshold for the UCC28221 is 13 V.