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UC3846 - SMPS Controller

Description

The UC3846 control IC provides all of the necessary

Features

  • Automatic Feed Forward Compensation.
  • Programmable Pulse by Pulse Current Limiting.
  • Automatic Symmetry Correction in Push-Pull Configuration.
  • Enhanced Load Response Characteristics.
  • Parallel Operation Capability for Modulator Power Systems.
  • Differential Current Sense Amplifier with Common Mode Range.
  • Double Pulse Suppression.
  • 200mA Totem-Pole Outputs.
  • ±2% Band gap Reference.
  • Under-Voltage Lockout.

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Full PDF Text Transcription

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www.fairchildsemi.com UC3846 SMPS Controller Features • Automatic Feed Forward Compensation • Programmable Pulse by Pulse Current Limiting • Automatic Symmetry Correction in Push-Pull Configuration • Enhanced Load Response Characteristics • Parallel Operation Capability for Modulator Power Systems • Differential Current Sense Amplifier with Common Mode Range • Double Pulse Suppression • 200mA Totem-Pole Outputs • ±2% Band gap Reference • Under-Voltage Lockout • Soft-Start Capability • Shutdown Terminal • 500KHz Operation Description The UC3846 control IC provides all of the necessary features to implement fixed frequency, current mode control schemes while maintaining a minimum external parts count.
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