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SG6846CLDZ PDF预览

SG6846CLDZ

更新时间： 2024-10-28 03:32:27
品牌 Logo 应用领域
飞兆/仙童 - FAIRCHILD 控制器
页数 文件大小 规格书
15页 634K
描述
Highly Integrated Green-Mode PWM Controller

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中文翻译

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SG6846CLDZ 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：5.59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：11.5 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
峰值回流温度（摄氏度）：NOT SPECIFIED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：136 kHz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 SPECIFIED
宽度：7.62 mmBase Number Matches：1

SG6846CLDZ 数据手册

 浏览型号SG6846CLDZ的Datasheet PDF文件第2页浏览型号SG6846CLDZ的Datasheet PDF文件第3页浏览型号SG6846CLDZ的Datasheet PDF文件第4页浏览型号SG6846CLDZ的Datasheet PDF文件第5页浏览型号SG6846CLDZ的Datasheet PDF文件第6页浏览型号SG6846CLDZ的Datasheet PDF文件第7页 
May 2008  
SG6846C  
Highly Integrated Green-Mode PWM Controller  
Features  
Description  
A highly integrated PWM controller, SG6846C provides  
several features to enhance the performance of flyback  
converters. To minimize standby power consumption, a  
proprietary green-mode function provides off-time  
modulation to continuously decrease the switching  
frequency under light-load conditions. Under zero-load  
conditions, the power supply enters burst-mode, which  
completely shuts off PWM output. Output restarts just  
before the supply voltage drops below the UVLO lower  
limit. This green-mode function enables power supplies  
to meet international power conservation requirements.  
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Low Start-up Current: 8µA  
Low Operating Current: 3.7mA  
Peak-current Mode Operation with Cycle-by-cycle  
Current Limiting  
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PWM Frequency Continuously Decreasing with  
Burst Mode at Light Loads  
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VDD Over-Voltage Protection (OVP)  
AC Input Brownout Protection with Hysteresis  
Constant Output Power Limit (Full AC Input Range)  
Internal Latch Circuit for OVP, OTP, and OCP  
Two-level OCP Delay: 110ms  
The SG6846C is designed for SMPS with surge-current  
output, incorporated with a two-level OCP function.  
Besides the cycle-by-cycle current limiting, if the  
switching current is higher than OCP threshold and  
lasts for 110ms, SG6846C shuts down immediately.  
SG6846C also integrates frequency-hopping function  
internally, which helps reduce EMI emission of a power  
supply with minimum line filters. The built-in  
synchronized slope compensation provides proprietary  
internal compensation for constant output power limit  
over a universal AC input range. The gate output is  
clamped at 18V to protect the external MOSFET from  
over-voltage damage.  
Programmable PWM Frequency with  
Frequency Hopping  
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OCP Threshold is Half Peak Current Limit  
Feedback Open-loop Protection with 110ms Delay  
Soft Start-up Time: 5ms  
Applications  
Other protection functions include AC input brownout  
protection with hysteresis and VDD over-voltage  
protection. For over-temperature protection, an external  
NTC thermistor can be applied to sense the ambient  
temperature. When OCP, VDD OVP, or OTP are  
activated, an internal latch circuit latches off the  
controller. The latch resets when VDD supply is removed.  
General-purpose switch mode power supplies and  
flyback power converters, including:  
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Power Adapters  
Open-frame SMPS  
SMPS with Surge-current Output, such as for  
Printers, Scanners, Motor Drivers  
SG6846C is available in 8-pin SOP and DIP packages.  
Ordering Information  
Part Number  
SG6846CLSZ  
SG6846CLDZ  
Operating Temperature Range  
OCP Latch  
Yes  
Package  
-20 to +85°C  
-20 to +85°C  
8-Pin Small Outline Package (SOP)  
8-Pin Dual Inline Package (DIP)  
Yes  
All standard Fairchild Semiconductor products are RoHS compliant and many are also “GREEN” or going green.  
For Fairchild’s definition of “green” please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.  
© 2007 Fairchild Semiconductor Corporation  
SG6846C • Rev. 1.1.2  
www.fairchildsemi.com  
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SG6846CLDZ 替代型号

型号 品牌 替代类型 描述 数据表
SG6846CLSZ FAIRCHILD

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