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| 型号： | FSQ321LX |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 1/21页 |
| 文件大小： | 0K |
| 描述： | IC SWIT PWM GREEN OVP UVLO 8LSOP |
| 标准包装： | 1 |
| 输出隔离： | 隔离 |
| 频率范围： | 55kHz ~ 67kHz |
| 输入电压： | 9 V ~ 20 V |
| 输出电压： | 650V |
| 功率（瓦特）： | 12W |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 8-SOP，8-LSOP |
| 供应商设备封装： | 8-LSOP |
| 包装： | 标准包装 |
| 其它名称： | FSQ321LXDKR |
August 2011
FSQ0365, FSQ0265, FSQ0165, FSQ321
Green Mode Fairchild Power Switch (FPS?)
for Valley Switching Converter – Low EMI and High Efficiency
Features
? Optimized for Valley Switching Converter (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
? 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 Startup Circuit
? Internal High-Voltage SenseFET: 650V
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 for cost-effective
designs of valley switching fly-back converters.
Related Application Notes
? AN-4137 - Design Guidelines for Offline Flyback
Converters Using Fairchild Power Switch (FPS?)
? Built-in Soft-Start: 15ms
Applications
? Power Supplies for DVP Player, DVD Recorder,
Set-Top Box
? Adapter
? Auxiliary Power Supply for PC, LCD TV, and PDP TV
? 2007 Fairchild Semiconductor Corporation
FSQ0365, FSQ0265, FSQ0165, FSQ321 ? Rev. 1.0.6
?
?
?
?
AN-4141 - Troubleshooting and Design Tips for
Fairchild Power Switch (FPS?) Flyback
Applications
AN-4147 - Design Guidelines for RCD Snubber of
Flyback Converters
AN-4150 - Design Guidelines for Flyback
Converters Using FSQ-series Fairchild Power
Switch (FPS?)
AN-4134 - Design Guidelines for Off-line Forward
Converters Using Fairchild Power Switch (FPS?)
www.fairchildsemi.com
相关PDF资料 |
PDF描述 |
|---|---|
| FSQ500L | IC SWIT PWM GREEN UVLO SOT223 |
| FSQ500N | IC PWM/SENSEFET 130KHZ 8-MDIP |
| FSQ510H | IC SWITCH FPS 0.5A 700V 8-DIP |
| FT435-30H | IC REG BOOST SYNC 3V 0.15A SOT23 |
| FT440CA | IC REG BUCK SYNC 1.8V 0.6A SOT23 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| FSQ3W | 制造商:RFE 制造商全称:RFE international 功能描述:FUSIBLE RESISTORS FM, FKN, & FSQ Series: Fusible |
| FSQ500HL | 功能描述:电源开关 IC - 配电 Green Mode Power Switch RoHS:否 制造商:Exar 输出端数量:1 开启电阻（最大值）:85 mOhms 开启时间（最大值）:400 us 关闭时间（最大值）:20 us 工作电源电压:3.2 V to 6.5 V 电源电流（最大值）: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5 |
| FSQ500L | 功能描述:电源开关 IC - 配电 Power Switch 0.245A RoHS:否 制造商:Exar 输出端数量:1 开启电阻（最大值）:85 mOhms 开启时间（最大值）:400 us 关闭时间（最大值）:20 us 工作电源电压:3.2 V to 6.5 V 电源电流（最大值）: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5 |
| FSQ500L_09 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Compact, Green Mode, Fairchild Power Switch |
| FSQ500N | 功能描述:交流/直流开关转换器 Compact FPS RoHS:否 制造商:STMicroelectronics 输出电压:800 V 输入/电源电压（最大值）:23.5 V 输入/电源电压（最小值）:11.5 V 开关频率:115 kHz 电源电流:1.6 mA 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:SSO-10 封装:Reel |
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