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FSD176MRT

Description
3.85 A SWITCHING CONTROLLER, 73 kHz SWITCHING FREQ-MAX, ZFM6
Categorysemiconductor    Analog mixed-signal IC   
File Size631KB,17 Pages
ManufacturerFairchild
Websitehttp://www.fairchildsemi.com/
Download Datasheet Parametric View All

FSD176MRT Overview

3.85 A SWITCHING CONTROLLER, 73 kHz SWITCHING FREQ-MAX, ZFM6

FSD176MRT Parametric

Parameter NameAttribute value
Number of functions1
Number of terminals6
Rated input voltage11 V
Minimum limit input voltage8 V
Maximum operating temperature125 Cel
Minimum operating temperature-40 Cel
Processing package description铅 FREE, TO-220, 6 PIN
Lead-freeYes
EU RoHS regulationsYes
stateACTIVE
packaging shapeRectangle
Package SizeFlange mounting
Terminal formTHROUGH-hole
terminal coatingMATTE Tin
Terminal locationZIG-ZAG
Packaging MaterialsUNSPECIFIED
Temperature levelAUTOMOTIVE
control modePEAK current
Control TechnologyPulse width MODULATION
Maximum output current3.85 A
Analog IC other typesswitch controller
Switch configurationsingle
Maximum switching frequency73 kHz
FSD176MRT — Green-Mode Fairchild Power Switch (FPS™)
September 2011
FSD176MRT
Green-Mode Fairchild Power Switch (FPS™)
Features
Advanced Soft Burst-Mode Operation for
Low Standby Power and Low Audible Noise
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.
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
Internal High-Voltage SenseFET: 650V
Built-in Soft-Start: 15ms
Auto-Restart Mode
Applications
Power Supply for LCD Monitor, STB, and
DVD Combination
Ordering Information
Output Power Table
Part Number
Operating
Current R
DS(ON)
Package Junction
Limit (Max.)
Temperature
-40°C ~
+125°C
-40°C ~
+125°C
(2)
230V
AC
±15%
(3)
Adapter
(4)
80W
85~265V
AC
Open
Open
(4)
(5)
Adapter
(5)
Frame
Frame
90W
48W
70W
Replaces
Device
TO-220
(1)
FSD176MRTUDTU 6-Lead
U-Forming
TO-220
(1)
FSD176MRTLDTU 6-Lead
L-Forming
3.50A
1.6Ω
FSGM0765R
3.50A
1.6Ω
80W
90W
48W
70W
FSGM0765R
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.
© 2011 Fairchild Semiconductor Corporation
FSD176MRT • Rev. 1.0.0
www.fairchildsemi.com
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