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FSL138MRT Datasheet Green-mode Fairchild Power Switch

Manufacturer: Fairchild (now onsemi)

Overview: FSL138MRT — Green-Mode Fairchild Power Switch (FPS™) for High Input Voltage May 2012 FSL138MRT Green-Mode Fairchild Power Switch (FPS™) for High Input.

General Description

The FSL138MRT is an integrated Pulse Width Modulation (PWM) controller and SenseFET specifically designed for offline Switched-Mode Power Supplies (SMPS) with minimal external components.

The PWM controller includes an integrated fixed-frequency oscillator, Under-Voltage Lockout (UVLO), LeadingEdge Blanking (LEB), optimized gate driver, internal soft-start, temperature-compensated precise current sources for loop compensation, and self-protection circuitry.

Compared with a discrete MOSFET and PWM controller solution, the FSL138MRT can reduce total cost, component count, size, and weight;

Key Features

  • Internal Avalanched-Rugged 800V SenseFET.
  • Advanced Soft Burst-Mode Operation for Low Standby Power and Low Audible Noise.
  • Under 40mW Standby Power Consumption at 265VAC and No-load Condition.
  • Random Frequency Fluctuation for Low EMI.
  • Pulse-by-Pulse Current Limit.
  • Various Protection Functions: Overload Protection (OLP), Over-Voltage Protection (OVP), Abnormal Over-Current Protection (AOCP), Internal Thermal Shutdown (TSD) with Hysteresis and Under-Voltage Lockout (U.

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FSL138MRT Distributor