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LM5021 - PWM Controller

General Description

The LM5021 off-line pulse width modulation (PWM) controller contains all of the

Key Features

  • 1 Ultra-low Startup Current (25 µA Maximum).
  • Current Mode Control.
  • Skip Cycle Mode for Low Standby Power.
  • Single Resistor Programmable Oscillator.
  • Synchronizable Oscillator.
  • Adjustable Soft-Start.
  • Integrated 0.7-A Peak Gate Driver.
  • Direct Opto-Coupler Interface.
  • Maximum Duty Cycle Limiting (80% for LM5021-1 or 50% for LM5021-2).
  • Slope Compensation (LM5021-1 Only).
  • Undervoltage Lockout (UVLO) with H.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM5021 SNVS359E – MAY 2005 – REVISED DECEMBER 2014 LM5021 AC-DC Current-Mode PWM Controller 1 Features •1 Ultra-low Startup Current (25 µA Maximum) • Current Mode Control • Skip Cycle Mode for Low Standby Power • Single Resistor Programmable Oscillator • Synchronizable Oscillator • Adjustable Soft-Start • Integrated 0.