LM5025 - Texas Instruments

LM5025 PWM Controller

The LM5025 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 convention.

Features

•1 Internal Start-Up Bias Regulator
• 3-A Compound Main Gate Driver
• Programmable Line Undervoltage Lockout (UVLO) With Adjustable Hysteresis
• Voltage Mode Control With Feed-Forward
• Adjustable Dual-Mode Overcurrent Protection
• Programmable Overlap or Deadtime Between the Main and Active Clamp Outputs
• Volt × Second Clamp
• Programmable Soft-Start
• Leading Edge Blanking
• Single Resistor Programmable Oscillator
• Oscillator UP and DOWN Sync Capability
• Precision 5-V Reference
• Thermal Shutdown 2 Applications
• Server Power Supplies
• 48-V Telecom Power Supplies
• 42-V Automotive Applic.