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FSD146MRBN Datasheet Green-mode Fairchild Power Switch

Manufacturer: Fairchild (now onsemi)

Overview: FSD146MRBN — Green-Mode Fairchild Power Switch (FPS™) October 2011 FSD146MRBN Green-Mode Fairchild Power Switch.

General Description

The FSD146MRBN is an integrated Pulse Width Modulation (PWM) controller and SenseFET designed for offline Switch-Mode Power Supplies (SMPS) with minimal external ponents.

The PWM controller includes an integrated fixed-frequency oscillator, UnderVoltage Lockout (UVLO), Leading-Edge Blanking (LEB), optimized gate driver, internal soft-start, temperaturepensated precise current sources for loop pensation, and self-protection circuitry.

pared with a discrete MOSFET and PWM controller solution, the FSD146MRBN can reduce total cost, ponent count, size, and weight;

Key Features

  • Advanced Soft Burst-Mode Operation for Low Standby Power and Low Audible Noise 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, Output-Short Protection (OSP), and Under-Voltage Lockout (UVLO) with Hysteresis Low Operating Current (0.4mA) in Burst Mode Internal Startup Circuit.

FSD146MRBN Distributor