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FSL126MRT

Description
SWITCHING CONTROLLER
Categorysemiconductor    Analog mixed-signal IC   
File Size875KB,13 Pages
ManufacturerFairchild
Websitehttp://www.fairchildsemi.com/
Download Datasheet Parametric View All

FSL126MRT Overview

SWITCHING CONTROLLER

FSL126MRT Parametric

Parameter NameAttribute value
stateACTIVE
Analog IC other typesswitch controller
FSL126MRT — Green-Mode Fairchild Power Switch (FPS™)
May 2012
FSL126MRT
Green-Mode Fairchild Power Switch (FPS™)
Features
Internal Avalanched Rugged 650V SenseFET
Advanced Soft Burst-Mode Operation for Low
Standby Power and Low Audible Noise
Description
The FSL126MRT is an integrated Pulse Width
Modulation (PWM) controller and SenseFET specifically
designed for offline Switch-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 FSL126MRT 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.
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
Applications
Power Supply for STB Home Appliances, and DVD
Combination
Ordering Information
Output Power Table
Part
Number
Operating
Current R
DS(ON)
Package
Junction
Limit (Max.)
Temperature
TO-220F
(1)
6-Lead
(2)
230V
AC
± 15%
(3)
Adapter
(4)
30W
85~265V
AC
Replaces Device
Open
Open
(4)
(5)
Adapter
(5)
Frame
Frame
40W
17W
25W
KA5M0265RYDTU
FSL126MRT
W-Forming
-40°C
~
+125°C
1.2A
6.2Ω
Notes:
1. Pb-free package per JEDEC J-STD-020B.
2. The junction temperature can limit the maximum output power.
3. 230V
AC
or 100/115V
AC
with voltage doubler.
4. Typical continuous power in a non-ventilated enclosed adapter measured at 50°C ambient temperature.
5. Maximum practical continuous power in an open-frame design at 50°C ambient temperature.
© 2012 Fairchild Semiconductor Corporation
FSL126MRT • Rev. 1.0.0
www.fairchildsemi.com
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