The LM5025MTC/NOPB is a Pulse Width Modulated (PWM) Controller contains all of the features necessary to implement power converters using the active clamp and reset technique. The device can be configured to control either a P-channel clamp switch or an N-channel clamp switch. With the active clamp technique, higher efficiencies and greater power densities can be realized compared to conventional catch winding or RDC clamp and reset techniques. Two control outputs are provided, the main power switch control (OUT_A) and the active clamp switch control (OUT_B). The active clamp output can be configured for either a specified overlap time (for P-channel switch applications) or a specified deadtime (for N-channel applications). The two internal compound gate drivers parallel both MOS and bipolar devices, providing superior gate drive characteristics.
Internal start-up bias regulator
3A Compound main gate driver
Programmable line under voltage lockout (UVLO) with adjustable hysteresis
Voltage mode control with feed-forward
Adjustable dual-mode overcurrent protection
Programmable overlap or dead time between the main and active clamp outputs
(EN)
