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SGP400DZ

更新时间： 2024-09-20 03:32:19
品牌 Logo 应用领域
飞兆/仙童 - FAIRCHILD 开关光电二极管控制器
页数 文件大小 规格书
15页 486K
描述
Low-Power Green-Mode PWM Flyback Power Controller without Secondary Feedback

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中文翻译

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SGP400DZ 技术参数

是否Rohs认证： 符合生命周期：Obsolete
零件包装代码：DIP包装说明：DIP, DIP8,.3
针数：8Reach Compliance Code：unknown
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.66模拟集成电路 - 其他类型：SWITCHING CONTROLLER
控制模式：CURRENT-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：20 V最小输入电压：8.5 V
标称输入电压：15 VJESD-30 代码：R-PDIP-T8
长度：9.271 mm功能数量：1
端子数量：8最高工作温度：85 °C
最低工作温度：-20 °C封装主体材料：PLASTIC/EPOXY
封装代码：DIP封装等效代码：DIP8,.3
封装形状：RECTANGULAR封装形式：IN-LINE
认证状态：Not Qualified座面最大高度：5.334 mm
子类别：Switching Regulator or Controllers表面贴装：NO
切换器配置：SINGLE最大切换频率：68 kHz
技术：BICMOS温度等级：OTHER
端子形式：THROUGH-HOLE端子节距：2.54 mm
端子位置：DUAL宽度：7.62 mm
Base Number Matches：1

SGP400DZ 数据手册

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Product Specification  
Low-Power Green-Mode PWM Flyback Power Controller without Secondary Feedback  
SGP400  
FEATURES  
DESCRIPTION  
„
Linearly decreasing PWM frequency  
This highly integrated PWM controller provides several  
features to enhance the performance of low-power  
flyback converters. To minimize standby power  
consumption, the proprietary green-mode function  
provides off-time modulation to linearly decrease the  
switching frequency under light-load and zero-load  
conditions. This green-mode function enables the power  
supply to meet international power conservation  
requirements. The supply voltage, VDD, is also used for  
feedback compensation, to regulate the output voltage  
„
Green-mode under light-load and zero-load  
conditions  
„
„
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„
„
„
„
„
„
„
„
„
„
„
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Constant voltage (CV) and constant current (CC)  
No secondary feedback  
Low start-up current (8µA)  
Low operating current (3.6mA)  
Leading-edge blanking  
Constant power limit  
Universal AC input range  
Synchronized slope compensation  
without requiring  
a
conventional TL431 and  
a
photo-coupler. The typical start-up current is only 8µA,  
while the typical operating current can be as low as  
3.6mA. A large start-up resistance could be used to  
achieve even higher power conversion efficiency.  
SGP400 integrates a frequency hopping function, which  
helps reduce EMI emission of a power supply with  
minimum line filters. Built-in synchronized slope  
compensation maintains the stability of peak  
current-mode control. Proprietary internal compensation  
ensures constant output power limiting over a universal  
range of AC input voltages, from 90VAC to 264VAC.  
Pulse-by-pulse current limiting ensures a constant output  
current, even if a short-circuit occurs. Also, the internal  
protection circuit disables PWM output if VDD exceeds  
22.7V. The gate output is clamped at 16.7V to protect the  
power MOS from over-voltage damage. The built-in  
over temperature protection (OTP) function shuts down  
the controller at 140°C with a 30°C hysteresis. The  
SGP400, designed to provide a low-cost total solution for  
flyback converters, is available in a small footprint, 6-pin,  
SOT-26 package.  
140°C OTP sensor with hysteresis  
VDD over-voltage clamping  
Cycle-by-cycle current limiting  
Under-voltage lockout (UVLO)  
Fixed PWM frequency with hopping  
Gate output maximum voltage clamped at 17V  
Small SOT-26 package  
APPLICATIONS  
Low-power flyback power converters, such as:  
„
„
„
Battery chargers for cellular phones, cordless phones,  
PDAs, digital cameras, and power tools  
Power adapters for ink jet printers, video game  
consoles, and portable audio players  
Open-frame SMPS for TV/DVD standby and other  
auxiliary supplies, home appliances, consumer  
electronics, and PC 5V standby-power  
Replacements for linear transformers and  
RCC SMPS  
„
TYPICAL APPLICATION  
VIN  
DO  
RIN  
D1  
CO  
VO  
VDD  
W AUX  
Q1  
GATE  
CIN  
SENSE  
GND  
RS  
© System General Corp.  
Version 1.0.1 (IAO33.0084.B0)  
- 1 -  
www.sg.com.tw • www.fairchildsemi.com  
September 24, 2007  
1234567...15

中文翻译

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