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LM5025B Datasheet Pwm Controller

Manufacturer: Texas Instruments

Overview: LM5025B .ti. SNVS354B – JULY 2005 – REVISED MARCH 2013 LM5025B Active Clamp Voltage Mode PWM Controller Check for Samples:.

General Description

The LM5025B is a functional variant of the LM5025 active clamp PWM controller.

The functional differences of the LM5025B are as follows: • The maximum PWM duty cycle is limited to less than 75% to reduce voltage stress on the power MOSFETs.

• The CS2 hiccup mode threshold is increased to 0.5V • The CS2 filter discharge device is disabled • The VCC regulator continues to operate when the line UVLO is below the threshold of normal operation • The VREF regulator is switched off when the line UVLO input falls below the operating threshold • The internal 5kΩ P pin pull-up resistor is removed The LM5025B PWM controller contains all of the

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 Maximum Duty Cycle Clamp.
  • Programmable Soft-Start.
  • Current Sense Leading Edge Blanking.
  • Sin.

Similar Datasheet

Brand Logo Part Number Description Manufacturer
National Semiconductor Logo LM5025 Active Clamp Voltage Mode PWM Controller National Semiconductor
National Semiconductor Logo LM5025A Active Clamp Voltage Mode PWM Controller National Semiconductor

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LM5025B Distributor