FSGM300N View Datasheet(PDF) - Fairchild Semiconductor
Part Name
Description
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FSGM300N Datasheet PDF : 16 Pages
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FSGM300N
Green-Mode Fairchild Power Switch (FPS™)
April 2012
Features
Advanced Burst-Mode Operation for Low
Standby Power
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
Auto-Restart Mode
Internal Startup Circuit
Internal High-Voltage SenseFET: 650V
Built-in Soft-Start: 15ms
Applications
Power Supply for LCD Monitor, STB and DVD
Combination
Description
The FSGM300N 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 FSGM series 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.
Related Resources
Fairchild Power Supply WebDesigner — Flyback
Design & Simulation - In Minutes at No Expense
Ordering Information
Part Number
Package
Operating
Junction
Temperature
Current
Limit
RDS(ON)
(Max.)
Output Power Table(2)
230VAC ± 15%(3)
85-265VAC
Adapter(4)
Open
Frame(5)
Adapter(4)
Open
Frame(5)
Replaces
Device
FSGM300N
8-DIP
-40°C ~
+125°C
1.60A 2.2Ω
26W
40W
20W
30W FSFM300N
Notes:
1. Pb-free package per JEDEC J-STD-020B.
2. The junction temperature can limit the maximum output power.
3. 230VAC or 100/115VAC 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.
© 2009 Fairchild Semiconductor Corporation
FSGM300N • Rev. 1.0.3
www.fairchildsemi.com
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