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KA3511AS PDF预览

KA3511AS

更新时间: 2024-11-24 13:09:07
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PC
页数 文件大小 规格书
28页 233K
描述
Switching Controller, Voltage-mode, 0.2A, 10kHz Switching Freq-Max, BIPolar, PDIP24, SDIP-24

KA3511AS 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:DIP包装说明:SDIP, SDIP24,.3
针数:24Reach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.89模拟集成电路 - 其他类型:SWITCHING CONTROLLER
控制模式:VOLTAGE-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:30 V最小输入电压:14 V
标称输入电压:20 VJESD-30 代码:R-PDIP-T24
JESD-609代码:e0长度:22.95 mm
功能数量:1端子数量:24
最高工作温度:70 °C最低工作温度:
最大输出电流:0.2 A封装主体材料:PLASTIC/EPOXY
封装代码:SDIP封装等效代码:SDIP24,.3
封装形状:RECTANGULAR封装形式:IN-LINE, SHRINK PITCH
峰值回流温度(摄氏度):NOT SPECIFIED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:10 kHz技术:BIPOLAR
温度等级:COMMERCIAL端子面层:Tin/Lead (Sn/Pb)
端子形式:THROUGH-HOLE端子节距:1.778 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

KA3511AS 数据手册

 浏览型号KA3511AS的Datasheet PDF文件第2页浏览型号KA3511AS的Datasheet PDF文件第3页浏览型号KA3511AS的Datasheet PDF文件第4页浏览型号KA3511AS的Datasheet PDF文件第5页浏览型号KA3511AS的Datasheet PDF文件第6页浏览型号KA3511AS的Datasheet PDF文件第7页 
November 2,1999  
AN4003  
PC POWER SUPPLY DESIGN WITH KA3511  
Sang-Tae Im  
1. GENERAL DESCRIPTION  
The KA3511 is a fixed-frequency improved-performance pulse-width modulation control circuit with  
complete housekeeping circuitry for use in the secondary side of SMPS (Switched mode power  
supply). It contains various functions, which are precision voltage reference, over voltage protec-  
tion, under voltage protection, remote on/off control, power good signal generator and etc.  
OVP (Over voltage protection) section  
It has OVP functions for +3.3V,+5V,+12V and PT outputs. The circuit is made up of a comparator  
with four detecting inputs and without hysteresis voltage. Especially, PT (Pin16) is prepared for an  
extra OVP input or another protection signal.  
UVP (Under voltage protection) section  
It also has UVP functions for +3.3V, +5V, +12V outputs. The block is made up of a comparator with  
three detecting inputs and without hysteresis voltage.  
Remote on/off section  
Remote on/off section is used to control SMPS externally. If a high signal is supplied to the remote  
on/off input, PWM signal becomes a high state and all secondary outputs are grounded. The  
remote on/off signal is transferred with some on-delay and off-delay time of 8ms, 24ms respec-  
tively.  
Precision reference section  
±
The reference voltage trimmed to 2% (4.9V<Vref<5.1V)  
PG (Power good signal generator) section  
Power good signal generator is to monitor the voltage level of power supply for safe operation of a  
microprocessor.  
KA3511 requires few external components to accomplish a complete housekeeping circuits for  
SMPS. The KA3511 is available in a 22-pin dual in-line package.  
Rev C, November 1999  
1

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