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SG6859ADY

更新时间： 2024-10-28 06:11:23
品牌 Logo 应用领域
飞兆/仙童 - FAIRCHILD 转换器稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管信息通信管理
页数 文件大小 规格书
13页 502K
描述
Low-Cost, Green-Mode PWM Controller for Flyback Converters

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中文翻译

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SG6859ADY 技术参数

生命周期：Obsolete零件包装代码：DIP
包装说明：GREEN, MS-001BA, DIP-8针数：8
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.74
Is Samacsys：N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：22 V最小输入电压：10.5 V
标称输入电压：15 VJESD-30 代码：R-PDIP-T8
长度：9.415 mm功能数量：1
端子数量：8最高工作温度：105 °C
最低工作温度：-40 °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：5.08 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：75 kHz
技术：BICMOS温度等级：INDUSTRIAL
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

SG6859ADY 数据手册

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March 2010  
SG6859A  
Low-Cost, Green-Mode PWM Controller for Flyback Converters  
Features  
Description  
This highly integrated PWM controller provides several  
enhancements designed to meet the low standby-power  
needs of low-power SMPS. To minimize standby power  
consumption, the proprietary green-mode function  
provides off-time modulation to linearly decrease the  
switching frequency under light-load conditions. This  
green-mode function enables the power supply to meet  
even the strictest power conservation requirements.  
ƒ Green-Mode PWM  
ƒ Supports the “Blue Angel” Standard  
ƒ Low Startup Current: 9μA  
ƒ Low Operating Current: 3mA  
ƒ 300mA Driving Capability  
ƒ Leading-Edge Blanking  
The BiCMOS fabrication process enables reducing the  
startup current to 9μA and the operating current to 3mA.  
To further improve power conservation, a large startup  
resistance can be used. Built-in synchronized slope  
compensation ensures the stability of peak current  
mode control. Proprietary internal compensation  
provides a constant output power limit over a universal  
AC input range (90VAC to 264VAC). Pulse-by-pulse current  
limiting ensures safe operation during short-circuits.  
ƒ Constant Output Power Limit  
ƒ Universal Input  
ƒ Built-in Synchronized Slope Compensation  
ƒ Current-Mode Operation  
ƒ Cycle-by-cycle Current Limiting  
ƒ Under-Voltage Lockout (UVLO)  
ƒ Programmable PWM Frequency with Frequency  
To protect the external power MOSFET from damage by  
supply over voltage, the SG6859A’s output driver is  
clamped at 17V. SG6859A controllers can be used to  
improve the performance and reduce the production  
cost of power supplies. The best choice for replacing  
linear and RCC-mode power adapters, the SG6859A is  
available in 8-pin DIP and 6-pin SSOT-6 packages.  
Hopping  
ƒ VDD Over-Voltage Protection (Auto Restart)  
ƒ Gate Output Voltage Clamped at 17V  
ƒ Low Cost  
ƒ Few External Components Required  
ƒ Small SSOT-6 Package  
Applications  
General-purpose switching mode power supplies and  
flyback power converters, such as:  
ƒ Battery chargers for cellular phones, cordless  
phones, PDAs, digital cameras, and power tools  
ƒ Power adapters for ink jet printers, video game  
consoles, and portable audio players  
ƒ Open-frame SMPS for TV/DVD standby and auxiliary  
supplies, home appliances, and consumer electronics  
ƒ Replacements for linear transformers and RCC SMPS  
ƒ PC 5V standby power  
© 2007 Fairchild Semiconductor Corporation  
SG6859A • Rev. 1.0.3  
www.fairchildsemi.com  
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中文翻译

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