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Fairchild Semiconductor Electronic Components Datasheet



Q0165R

FSQ0165R



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Q0165R pdf
September 2007
FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311
Green Mode Fairchild Power Switch (FPS™) for
Valley Switching Converter - Low EMI and High Efficiency
Features
„ Optimized for Valley Switching (VSC)
„ Low EMI through Variable Frequency Control and
Inherent Frequency Modulation
„ High-Efficiency through Minimum Voltage Switching
„ Narrow Frequency Variation Range over Wide Load
and Input Voltage Variation
„ Advanced Burst-Mode Operation for Low Standby
Power Consumption
„ Pulse-by-Pulse Current Limit
„ Various Protection Functions: Overload Protection
(OLP), Over-Voltage Protection (OVP), Abnormal
Over-Current Protection (AOCP), Internal Thermal
Shutdown (TSD)
„ Under-Voltage Lockout (UVLO) with Hysteresis
„ Internal Start-up Circuit
„ Internal High-Voltage SenseFET (650V)
„ Built-in Soft-Start (15ms)
Applications
„ Power Supply for DVP Player and DVD Recorder,
Set-Top Box
„ Adapter
„ Auxiliary Power Supply for PC, LCD TV, and PDP TV
Description
A Valley Switching Converter generally shows lower EMI
and higher power conversion efficiency than a
conventional hard-switched converter with a fixed
switching frequency. The FSQ-series is an integrated
Pulse-Width Modulation (PWM) controller and
SenseFET specifically designed for valley switching
operation with minimal external components. The PWM
controller includes an integrated fixed-frequency
oscillator, Under-Voltage Lockout, Leading Edge
Blanking (LEB), optimized gate driver, internal soft-start,
temperature-compensated precise current sources for
loop compensation, and self-protection circuitry.
Compared with discrete MOSFET and PWM controller
solutions, the FSQ-series reduces total cost, component
count, size and weight; while simultaneously increasing
efficiency, productivity, and system reliability. This device
provides a basic platform that is well suited for cost-
effective designs of valley switching fly-back converters.
Related Application Notes
„ AN-4137, AN-4141, AN-4147, AN-4150 (Flyback)
„ AN-4134 (Forward)
FPSTM is a trademark of Fairchild Semiconductor Corporation.
© 2006 Fairchild Semiconductor Corporation
FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.5
www.fairchildsemi.com
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Q0165R pdf
Ordering Information
Product
Number(5)
PKG.
Operating
Temp.
Cur-
rent
Limit
FSQ311
FSQ311L
8-DIP
-40 to +85C
8-LSOP
0.6A
FSQ321
FSQ321L
8-DIP
-40 to +85°C 0.6A
8-LSOP
FSQ0165RN 8-DIP
-40 to +85°C 0.9A
FSQ0165RL 8-LSOP
FSQ0265RN 8-DIP
-40 to +85°C 1.2A
FSQ0265RL 8-LSOP
FSQ0365RN 8-DIP
-40 to +85°C 1.5A
FSQ0365RL 8-LSOP
RDS(ON)
Max.
Maximum Output Power(1)
230VAC±15%(2)
85-265VAC
Adapter(3) Open-Frame(4) Adapter(3) Open-Frame(4)
19Ω 7W 10W 6W 8W
Replaces
Devices
FSDL321
FSDM311
19Ω 8W
12W
7W
10W
FSDL321
FSDM311
10Ω 10W
15W
9W
13W
FSDL0165RN
6Ω 14W
4.5Ω
17.5W
20W
25W
11W
13W
16W
19W
FSDM0265RN
FSDM0265RNB
FSDM0365RN
FSDM0365RNB
Notes:
1. The junction temperature can limit the maximum output power.
2. 230VAC or 100/115VAC with doubler. The maximum power with CCM operation.
3. Typical continuous power in a non-ventilated enclosed adapter measured at 50°C ambient temperature.
4. Maximum practical continuous power in an open-frame design at 50°C ambient.
5. Pb-free package per JEDEC J-STD-020B.
© 2006 Fairchild Semiconductor Corporation
FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.5
2
www.fairchildsemi.com
Free Datasheet http://www.Datasheet4U.com



Part Number Q0165R
Description FSQ0165R
Maker Fairchild Semiconductor - Fairchild Semiconductor
Total Page 24 Pages
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