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Fairchild Semiconductor - Green-Mode Fairchild Power Switch

Numéro de référence FSD176MRT
Description Green-Mode Fairchild Power Switch
Fabricant Fairchild Semiconductor 
Logo Fairchild Semiconductor 





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FSD176MRT fiche technique
January 2014
FSD176MRT
Green-Mode Fairchild Power Switch (FPS™)
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 (0.4 mA) in Burst Mode
Internal Startup Circuit
Internal High-Voltage SenseFET: 650 V
Built-in Soft-Start: 15 ms
Auto-Restart Mode
Description
The FSD176MRT 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 FSD176MRT can reduce total
cost, component count, size, and weight; while
simultaneously increasing efficiency, productivity, and
system reliability. This device provides a basic platform
for cost-effective design of a flyback converter.
Applications
Power Supply for LCD Monitor, STB, and
DVD Combination
Ordering Information
Part Number
Output Power Table(2)
Package
Operating
Junction
Temperature
Current RDS(ON) 230 VAC ±15%(3)
Limit
(Max.)
Adapter(4)
Open
Frame(5)
85~265 VAC
Adapter(4)
Open
Frame(5)
Replaces
Device
TO-220
FSD176MRTUDT
U
6-Lead(1)
U-
-40°C
~
+125°C
3.50 A
Forming
1.6
80 W
90 W
48 W
70 W
FSGM0765
R
TO-220
FSD176MRTLDTU
6-Lead(1)
L-
-40°C
~
+125°C
Forming
3.50A
1.6
80W
90W
48W
70 W
FSGM0765
R
Notes:
1. Pb-free package per JEDEC J-STD-020B.
2. The junction temperature can limit the maximum output power.
3. 230 VAC or 100 / 115 VAC 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.
© 2011 Fairchild Semiconductor Corporation
FSD176MRT • Rev. 1.0.1
www.fairchildsemi.com

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