Description
The UCC28220 and UCC28221 are a family of BiCMOS interleaved dual channel PWM controllers..
Features
- 1 2-MHz High-Frequency Oscillator With 1-MHz Operation Per Channel.
- Matched Internal Slope Compensation Circuits.
- Programmable Maximum Duty Cycle Clamp 60%
to 90% Per Channel.
- Peak Current Mode Control With Cycle-by-Cycle
Current Limit.
- Current Sense Discharge Transistor for Improved
Noise Immunity.
- Accurate Line Undervoltage and Overvoltage
Sense With Programmable Hysteresis.
- Opto-Coupler Interface.
- 110-V Internal Start-Up JFET (UCC28221).
- Operates From 12-V Supply (UCC28220).
- Programmable Soft Start
2.
