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SG6859DTY

更新时间： 2024-10-29 19:06:55
品牌 Logo 应用领域
安森美 - ONSEMI 开关
页数 文件大小 规格书
10页 416K
描述
Flyback & Forward PWM Controllers, SSOT 6L, 15000-TAPE REEL

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中文翻译

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SG6859DTY 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：ObsoleteReach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.76模拟集成电路 - 其他类型：SWITCHING CONTROLLER
湿度敏感等级：1Base Number Matches：1

SG6859DTY 数据手册

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February 2009  
SG6859D  
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.  
Green-Mode PWM  
Supports the “Blue Angel” Standard  
Low Startup Current: 9 A  
Low Operating Current: 3mA  
300mA Driving Capability  
Leading-Edge Blanking  
The BiCMOS fabrication process enables reducing the  
startup current to 9 A 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.  
Constant Output Power Limit  
Universal Input  
Built-in Synchronized Slope Compensation  
Current-Mode Operation  
Cycle-by-Cycle Current Limiting  
Under-Voltage Lockout (UVLO)  
Programmable PWM Frequency with Frequency  
Hopping  
To protect the external power MOSFET from damage by  
supply over voltage, the SG6859D’s output driver is  
clamped at 17V. SG6859D 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. Available in 8-  
pin DIP and 6-pin SSOT-6 packages.  
VDD Over-Voltage Protection (Auto Restart)  
Gate Output Voltage Clamped at 17V  
Low Cost  
Few External Components Required  
Small SSOT-6 Package  
Applications  
General-purpose switching mode power supplies and  
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 auxiliary  
supplies, home appliances, and consumer electronics  
Replacements for linear transformers and RCC SMPS  
PC 5V standby power  
Ordering Information  
Part Number  
Operating Temperature Range  
Package  
Packing Method  
Eco Status  
SG6859DTY  
SG6859DDY  
SSOT-6  
DIP-8  
Tape & reel  
Tube  
Green  
-40 to +105 C  
For Fairchild’s definition of “green” Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.  
© 2008 Fairchild Semiconductor Corporation  
SG6859D Rev. 1.0.0  
www.fairchildsemi.com  
1234567...10

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