SLUS829G August 2008 – February 2020 UCC2897A
PRODUCTION DATA.
The UCC2897A is a peak current mode active clamp PWM controller. It provides simple interface to program the critical timings such as soft start, gate turn on delay, switching period, maximum operating duty cycle, and slope compensation. Features includes a high voltage JFET circuit, UVLO protection, line under/over voltage protection, pulse skipping, and synchronization. The UCC2897A also has the logic and the drive capability for a P-channel auxiliary switch. The VDD supply is generated from a bootstrap circuit connected to a bias winding.