Datasheet Texas Instruments UCC28221D — Datenblatt

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SLUS544G – SEPTEMBER 2003 – REVISED APRIL 2017 UCC2822x Interleaved Dual PWM Controller With Programmable Max Duty Cycle
1 Features 3 Description The UCC28220 and UCC28221 are a family of
BiCMOS interleaved dual channel PWM controllers.
Peak current mode control is used to ensure current
sharing between the two channels. A precise
maximum duty cycle clamp can be set to any value
between 60% and 90% duty cycle per channel. 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 …