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參數資料
| 型號： | FSQ0765RQ |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 3.92 A SWITCHING CONTROLLER, 75.8 kHz SWITCHING FREQ-MAX, ZFM6 |
| 封裝： | ROHS COMPLIANT, TO-220F, 6 PIN |
| 文件頁數： | 1/19頁 |
| 文件大?。?/td> | 3321K |
| 代理商： | FSQ0765RQ |
2008 Fairchild Semiconductor Corporation
www.fairchildsemi.com
F
S
Q0765RQ
—
Green-Mod
eFa
rich
ild
Power
Swit
ch
(FPS)
f
o
rQuasi-Reso
nant
Operation
FSQ0765RQ Rev. 1.0.1
April 2009
FSQ0765RQ
Green-Mode Fairchild Power Switch (FPS) for
Quasi-Resonant Operation - Low EMI and High Efficiency
Features
!
Optimized for Quasi-Resonant Converter (QRC)
!
Low EMI through Variable Frequency Control and AVS
(Alternating Valley Switching)
!
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
!
Simple Scheme for Sync Voltage Detection
!
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)
!
Under-Voltage Lockout (UVLO) with Hysteresis
!
Internal Startup Circuit
!
Internal High-Voltage Sense FET (650V)
!
Built-in Soft-Start (17.5ms)
Applications
!
Power Supply for LCD TV and Monitor, VCR, SVR,
STB, and DVD & DVD Recorder
!
Adapter
Related Resources
Visit http://www.fairchildsemi.com/apnotes/ for:
!
AN-4134: Design Guidelines for Offline Forward
Converters Using Fairchild Power Switch (FPS)
!
AN-4137: Design Guidelines for Offline Flyback
Converters Using Fairchild Power Switch (FPS)
!
AN-4140: Transformer Design Consideration for
Offline Flyback Converters Using Fairchild Power
Switch (FPS)
!
AN-4141: Troubleshooting and Design Tips for
Fairchild Power Switch (FPS) Flyback Applications
!
AN-4145: Electromagnetic Compatibility for Power
Converters
!
AN-4147: Design Guidelines for RCD Snubber of
Flyback
!
AN-4148: Audible Noise Reduction Techniques for
Fairchild Power Switch Fairchild Power Switch(FPS)
Applications
!
AN-4150: Design Guidelines for Flyback Converters
Using FSQ-Series Fairchild Power Switch (FPS)
Description
A Quasi-Resonant Converter (QRC) 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 quasi-resonant
operation and Alternating Valley Switching (AVS). 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 a loop compensation, and self-protection circuitry.
Compared with a discrete MOSFET and PWM controller
solution, the FSQ-series can reduce 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 quasi-resonant switching
flyback converters.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| FSQ0765RQLDTU | 功能描述:電源開關 IC - 配電 SMPS Power switch (QRC) 7A 650V RoHS:否 制造商:Exar 輸出端數量:1 開啟電阻（最大值）:85 mOhms 開啟時間（最大值）:400 us 關閉時間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
| FSQ0765RQUDTU | 功能描述:電源開關 IC - 配電 SMPS Power SW (QRC) 7A 650V RoHS:否 制造商:Exar 輸出端數量:1 開啟電阻（最大值）:85 mOhms 開啟時間（最大值）:400 us 關閉時間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
| FSQ0765RQWDTU | 功能描述:電源開關 IC - 配電 SMPS Power Switch RoHS:否 制造商:Exar 輸出端數量:1 開啟電阻（最大值）:85 mOhms 開啟時間（最大值）:400 us 關閉時間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
| FSQ0765RS | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Green-Mode Fairchild Power Switch (FPS) for Quasi-Resonant Operation - Low EMI and High Efficiency |
| FSQ0765RSLDTU | 功能描述:電源開關 IC - 配電 SMPS Power switch (QRC) 7A 650V RoHS:否 制造商:Exar 輸出端數量:1 開啟電阻（最大值）:85 mOhms 開啟時間（最大值）:400 us 關閉時間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
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