Texas Instruments LM5026MT/NOPB

Description
The LM5026 PWM controller is designed for power converters utilizing the active clamp reset technique with current mode control. It offers higher efficiencies and power densities compared to conventional catch winding or RDC clamp/reset techniques. The device provides two control outputs: the main power switch control (OUT A) and the active clamp switch control (OUT B). It can be configured to control either a P-Channel or N-Channel clamp switch. The main gate driver features a compound configuration of MOS and Bipolar devices for superior gate drive characteristics. The LM5026 can operate with bias voltages ranging from 8V to 100V.

Features
Current mode control
Internal 100V start-up bias regulator
3A compound main gate driver
High bandwidth opto-coupler interface
Programmable line under-voltage lockout (UVLO) with adjustable hysteresis
Versatile dual mode over-current protection with hiccup delay timer
Programmable overlap or deadtime between the main and active clamp outputs
Programmable maximum duty cycle clamp
Programmable soft-start
Leading edge blanking
Resistor programmed 1MHz capable oscillator
Oscillator sync I/O capability
Precision 5V reference

Applications
Forward power converters with active clamp reset
High efficiency power supplies
Power factor correction (PFC) converters
Isolated and non-isolated DC-DC converters