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LM5025C - PWM Controller

General Description

The LM5025C is a functional variant of the LM5025 active clamp PWM controller.

The functional differences of the LM5025C are: The maximum duty cycle of the LM5025C is increased from 80% to 91%.

The soft-start capacitor charging current is increased from 20 µA to 90 µA.

Key Features

  • 1.
  • 2 Internal Start-Up Bias Regulator.
  • 3A Compound Main Gate Driver.
  • Programmable Line Under-Voltage Lockout (UVLO) with Adjustable Hysteresis.
  • Voltage Mode Control with Feed-Forward.
  • Adjustable Dual Mode Over-Current Protection.
  • Programmable Overlap or Deadtime between the Main and Active Clamp Outputs.
  • Volt x Second Clamp.
  • Programmable Soft-start.
  • Leading Edge Blanking.
  • Single Resistor Programmable Oscilla.

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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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LM5025C www.ti.com SNVS568C – SEPTEMBER 2008 – REVISED MARCH 2013 LM5025C Active Clamp Voltage Mode PWM Controller Check for Samples: LM5025C FEATURES 1 •2 Internal Start-Up Bias Regulator • 3A Compound Main Gate Driver • Programmable Line Under-Voltage Lockout (UVLO) with Adjustable Hysteresis • Voltage Mode Control with Feed-Forward • Adjustable Dual Mode Over-Current Protection • Programmable Overlap or Deadtime between the Main and Active Clamp Outputs • Volt x Second Clamp • Programmable Soft-start • Leading Edge Blanking • Single Resistor Programmable Oscillator • Oscillator UP / DOWN Sync Capability • Precision 5V Reference • Thermal Shutdown PACKAGE • TSSOP-16 DESCRIPTION The LM5025C is a functional variant of the LM5025 active clamp PWM controller.