5秒后页面跳转
捷配首页

Datasheet > 电源电路 > 开关式稳压器或控制器> SG684965DZ
SG684965DZ PDF预览

SG684965DZ

更新时间： 2024-10-28 12:18:55
品牌 Logo 应用领域
飞兆/仙童 - FAIRCHILD 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
16页 391K
描述
Low-Power, Green-Mode PWM Flyback Power Controller without Secondary Feedback

阅读下载

中文翻译

获取价格

SG684965DZ 技术参数

是否Rohs认证： 符合生命周期：Obsolete
包装说明：DIP, DIP8,.3Reach Compliance Code：unknown
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.84模拟集成电路 - 其他类型：SWITCHING CONTROLLER
控制模式：CURRENT-MODEJESD-30 代码：R-PDIP-T8
端子数量：8最高工作温度：85 °C
最低工作温度：-30 °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
峰值回流温度（摄氏度）：NOT SPECIFIED认证状态：Not Qualified
子类别：Switching Regulator or Controllers表面贴装：NO
最大切换频率：70 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
处于峰值回流温度下的最长时间：NOT SPECIFIEDBase Number Matches：1

SG684965DZ 数据手册

 浏览型号SG684965DZ的Datasheet PDF文件第2页浏览型号SG684965DZ的Datasheet PDF文件第3页浏览型号SG684965DZ的Datasheet PDF文件第4页浏览型号SG684965DZ的Datasheet PDF文件第5页浏览型号SG684965DZ的Datasheet PDF文件第6页浏览型号SG684965DZ的Datasheet PDF文件第7页 
December 2008  
SG6849  
Low-Power, Green-Mode PWM Flyback Power Controller  
without Secondary Feedback  
Features  
Description  
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.  
ƒ Linearly Decreasing PWM Frequency  
ƒ Green-Mode Under Light-Load and Zero-Load  
Conditions  
ƒ Constant Voltage (CV) and Constant Current (CC)  
ƒ No Secondary Feedback  
ƒ Low Startup Current: 5μA  
ƒ Low Operating Current: 3.6mA  
ƒ Leading-Edge Blanking (LEB)  
ƒ Constant Power Limit  
The supply voltage VDD is also used for feedback  
compensation to regulate the output voltage without  
requiring a conventional TL431 and a photo-coupler. An  
advantage of the SG6849 is a typical startup current of  
only 5µA, while the typical operating current can be as  
low as 3.6mA. A large startup resistance can be used to  
achieve even higher power conversion efficiency.  
ƒ Universal AC Input Range  
ƒ Synchronized Slope Compensation  
ƒ 150°C OTP Sensor with Hysteresis  
ƒ VDD Over-Voltage Clamping  
ƒ Cycle-by-Cycle Current Limiting  
ƒ Under-Voltage Lockout (UVLO)  
ƒ Fixed PWM Frequency: 65kHz  
ƒ Gate Output Maximum Voltage Clamped at 16.7V  
ƒ Small SSOT-6 Package  
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  
.
The SG6849 provides many protection functions. Pulse-  
by-pulse current limiting ensures a constant output  
current, even if a short circuit occurs. 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 150°C with a 20°C hysteresis.  
Applications  
Low-power, flyback power converters, such as:  
ƒ Battery chargers for cellular phones, cordless  
phones, PDAs, digital cameras, and power tools  
The SG6849 is designed to provide a low-cost total  
solution for flyback converters. It is available in a small  
footprint, 6-pin, SSOT-6 package.  
ƒ Power adapters for ink jet printers, video game  
consoles, and portable audio players  
ƒ Open-frame SMPS for TV/DVD standby and other  
auxiliary supplies, home appliances, consumer  
electronics, and PC 5V standby-power  
Related Resources  
ƒ Replacements for linear transformers and RCC  
ƒ
AN-6849 - Low Cost, Green-Mode PWM Controller  
for Flyback Converters  
SMPS  
© 2008 Fairchild Semiconductor Corporation  
SG6849 Rev. 1.6.1  
www.fairchildsemi.com  
1234567...16

中文翻译

下载PDF

与SG684965DZ相关器件

型号 品牌 获取价格 描述 数据表
SG6849-65T FAIRCHILD

获取价格

 		Switching Regulator/Controller, Current-mode, 70kHz Switching Freq-Max, BICMOS, PDSO6,
SG684965TZ FAIRCHILD

获取价格

 		Low-Power, Green-Mode PWM Flyback Power Controller without Secondary Feedback
SG6858 FAIRCHILD

获取价格

 		Low-Cost, Green-Mode PWM Controller for Flyback Converters
SG6858_09 FAIRCHILD

获取价格

 		Low-Cost, Green-Mode, PWM Controller for Flyback Converters
SG6858DZ FAIRCHILD

获取价格

 		Low-Cost, Green-Mode PWM Controller for Flyback Converters
SG6858TZ FAIRCHILD

获取价格

 		Low-Cost, Green-Mode PWM Controller for Flyback Converters
SG6859 FAIRCHILD

获取价格

 		Low Cost Green-Mode PWM Controller for Flyback Converters
SG6859A FAIRCHILD

获取价格

 		Low-Cost, Green-Mode PWM Controller for Flyback Converters
SG6859A_10 FAIRCHILD

获取价格

 		Low-Cost, Green-Mode PWM Controller for Flyback Converters
SG6859ADY FAIRCHILD

获取价格

 		Low-Cost, Green-Mode PWM Controller for Flyback Converters

与SG684965DZ相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证