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LM5027A - Voltage Mode Active Clamp Controller

Description

The LM5027A is a functional variant of the LM5027 active clamp PWM controller.

The functional difference of the LM5027A is that the maximum duty cycle of the LM5027A is decreased from 91% to 71%.

In addition, the oscillator timing equation has been modified.

Features

  • 1.
  • 2 Voltage-Mode Control.
  • Line Feed-Forward PWM Ramp.
  • Internal 105V Rated Start-Up Bias Regulator.
  • Programmable Line Under-Voltage Lockout (UVLO) with Adjustable Hysteresis.
  • Versatile Dual Mode Over-Current Protection.
  • Programmable Volt-Second Limiter and Soft- Start.
  • Programmable Synchronous Rectifier Soft- Start and Stop.
  • Precise 500mV Over-Current Comparator.
  • Current Sense Leading Edge Blanking.
  • Programm.

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