UCC2897A Overview
Description
The UCC2897A PWM controller simplifies implementation of the various active clamp or reset and synchronous rectifier switching power topologies. The UCC2897A is a peak current-mode fixedfrequency high-performance pulse-width modulator.
Key Features
- 1 Low-output jitter
- Soft-stop shutdown of MAIN and AUX
- 110-V input startup function
- Ideal for active-clamp, reset-forward, flyback and synchronous rectifier uses
- Provides complementary auxiliary driver with programmable dead time (Turn-On Delay) between AUX and MAIN switches
- Peak current-mode control with 0.5-V cycle-bycycle current limiting
- TrueDrive™ 2-A Sink, 2-A source outputs
- Trimmed internal-bandgap reference for accurate line UV and line OV threshold
- Programmable slope compensation
- High-performance 1-MHz synchronizable oscillator with internal timing capacitor
