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reference designFSL138MRT

Onsemi FSL138MRT

FSL138MRT Green-Mode Fairchild Power Switch (FPS™) for High Input Voltage

Overview

TopologyFlyback Converter
Input voltage80-310 V
Switching frequency61-73 kHz
Output 150 V / 2 A
Output 262 V / 1.4 A
IC revision1.0.0

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), Leading-Edge 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; while simultaneously increasing efficiency, productivity, and system reliability. This device provides a basic platform suited for cost-effective design of a flyback converter.

Features

  • Internal Avalanched-Rugged 800V SenseFET
  • Advanced Soft Burst-ModeOperation for Low Standby Power and Low Audible Noise
  • Under 40mW Standby PowerConsumption 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 (UVLO) with Hysteresis
  • Low Operating Current (0.4mA) in Burst Mode
  • Internal Startup Circuit
  • Built-in Soft-Start: 15ms
  • Auto-Restart Mode

Typical applications

  • Power Supply for STB Home Appliances and Industrial for Hingh AC Input

More information

Products

Order Code
Data­sheet
Simu­lation
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Status
Product series
L(µH)
IR(A)
ISAT(A)
fres(MHz)
Mount
Samples
744028004
WE-TPC SMT Tiny Power Inductor, 4.7 µH, 0.85 A
Simu­lation
Downloads9 files

EDA models: Components ZIP

CAD files ZIP

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Download all 9 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-TPC SMT Tiny Power Inductor
Inductance4.7 µH
Rated Current0.85 A
Saturation Current0.7 A
Self Resonant Frequency70 MHz
MountSMT 
750311795
Common Mode Choke, –, –
Simu­lation–
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Status Activei| Production is active. Expected lifetime: >10 years.
Product series Common Mode Choke
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750313579
Flyback with PFC. Single and 4 channel LED Driver. 80-310VACin, 100W out., –, –
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Status Activei| Production is active. Expected lifetime: >10 years.
Product series Flyback with PFC. Single and 4 channel LED Driver. 80-310VACin, 100W out.
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750313584
Flyback with PFC. Single and 4 channel LED Driver. 80-310VACin, 100W out., –, –
Simu­lation–
Downloads–
Status Activei| Production is active. Expected lifetime: >10 years.
Product series Flyback with PFC. Single and 4 channel LED Driver. 80-310VACin, 100W out.
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