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DATA SHEET
UCC2897A Advanced Current-Mode Active-Clamp PWM Controller
1 Features
- 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-by-cycle 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
- Precise programmable maximum duty cycle
- PB-free lead finish package
2 Applications
- High-efficiency DC-to-DC power supplies
- Server power, 48-V telecom, datacom, and 42-V automotive applications
![](//collector-Dl82I3Ui.perimeterx.net/api/v1/collector/pxPixel.gif?appId=Dl82I3Ui)
![](https://id.rlcdn.com/464526.gif)