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KA3846 PDF预览

KA3846

更新时间: 2024-11-22 22:47:43
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
页数 文件大小 规格书
10页 69K
描述
SMPS Controller

KA3846 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, DIP16,.3
针数:16Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.64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:40 V最小输入电压:7.65 V
标称输入电压:15 VJESD-30 代码:R-PDIP-T16
JESD-609代码:e3长度:19.4 mm
功能数量:1端子数量:16
最高工作温度:70 °C最低工作温度:
最大输出电流:0.5 A封装主体材料:PLASTIC/EPOXY
封装代码:DIP封装等效代码:DIP16,.3
封装形状:RECTANGULAR封装形式:IN-LINE
峰值回流温度(摄氏度):NOT APPLICABLE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:PUSH-PULL
最大切换频率:500 kHz技术:BIPOLAR
温度等级:COMMERCIAL端子面层:Matte Tin (Sn)
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 APPLICABLE
宽度:7.62 mmBase Number Matches:1

KA3846 数据手册

 浏览型号KA3846的Datasheet PDF文件第2页浏览型号KA3846的Datasheet PDF文件第3页浏览型号KA3846的Datasheet PDF文件第4页浏览型号KA3846的Datasheet PDF文件第5页浏览型号KA3846的Datasheet PDF文件第6页浏览型号KA3846的Datasheet PDF文件第7页 
www.fairchildsemi.com  
KA3846  
SMPS Controller  
Features  
Description  
• Automatic Feed Forward Compensation  
• Programmable Pulse by Pulse Current Limiting  
• Automatic Symmetry Correction in Push-Pull  
Configuration  
• Enhanced Load Response Characteristics  
• Parallel Operation Capability for Modulator Power  
Systems  
• Differential Current Sense Amplifier with Common Mode  
Range  
• Double Pulse Suppression  
• 200mA Totem-Pole Outputs  
±2% Band gap Reference  
• Under-Voltage Lockout  
• Soft-Start Capability  
• Shutdown Terminal  
The KA3846 control IC provides all of the necessary fea-  
tures to implement fixed frequency, current mode control  
schemes while maintaining a minimum external parts count.  
The superior performance of this technique can be measured  
in improved line regulation, enhanced load response char-  
acteristics, and a simpler, easier-to-design control loop.  
Topological advantages include inherent pulse-by-pulse cur-  
rent limiting capability, automatic symmetry correction for  
push-pull converters, and the ability to parallel “power  
module,, while maintaining equal current sharing. Protection  
circuitry includes built-in-under-voltage lockout and pro-  
grammable current limit in addition to soft-start capability.  
A shutdown function is also available which can initiate  
either a complete shutdown with automatic restart or latch  
the supply off. Other features include fully latched operation,  
double pulse suppression, deadtime adjust capability, and  
±2% trimmed bandgap reference. The KA3846 features low  
outputs in the OFF state.  
• 500KHz Operation  
16-DIP  
1
Internal Block Diagram  
10  
Rev. 5.0  
©2000 Fairchild Semiconductor International  

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