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LM3101M PDF预览

LM3101M

更新时间: 2024-11-23 04:20:11
品牌 Logo 应用领域
美国国家半导体 - NSC 控制器
页数 文件大小 规格书
20页 306K
描述
Secondary-Side PWM Controller

LM3101M 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
包装说明:SOP, SOP14,.4Reach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.88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:15 V最小输入电压:4.5 V
JESD-30 代码:R-PDSO-G14JESD-609代码:e0
长度:9 mm功能数量:1
端子数量:14最高工作温度:125 °C
最低工作温度:-40 °C标称输出电压:1.242 V
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP14,.4封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):NOT SPECIFIED
认证状态:Not Qualified座面最大高度:2.65 mm
子类别:Switching Regulator or Controllers最大供电电流 (Isup):28 mA
表面贴装:YES切换器配置:SINGLE
最大切换频率:1000 kHz技术:BIPOLAR
温度等级:AUTOMOTIVE端子面层:Tin/Lead (Sn/Pb)
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:7.5 mmBase Number Matches:1

LM3101M 数据手册

 浏览型号LM3101M的Datasheet PDF文件第2页浏览型号LM3101M的Datasheet PDF文件第3页浏览型号LM3101M的Datasheet PDF文件第4页浏览型号LM3101M的Datasheet PDF文件第5页浏览型号LM3101M的Datasheet PDF文件第6页浏览型号LM3101M的Datasheet PDF文件第7页 
January 1995  
LM3101 Secondary-Side PWM Controller  
General Description  
Features  
Y
g
2% precision voltage reference  
The LM3101 is a precision high-speed PWM controller. It is  
designed to provide secondary-side feedback for offline  
Switch-Mode Power Supplies (SMPS) using pulse communi-  
cation to the primary-side driver. The LM3101 is applicable  
in all of the popular converter topologies such as flyback or  
forward.  
Y
Y
Y
Y
Y
Y
Y
Y
Wide-bandwidth (8 MHz) error amplifier  
External synchronization  
Frequency shift during an output short circuit  
Power-on reset flag with programmable delay  
Overvoltage crowbar trigger circuit  
Ramped reference Soft-Start  
The LM3101 combined with its companion LM3001 Primary-  
Side Driver forms a regulator chip-set that provides preci-  
sion control of offline or other isolated DC/DC converters.  
The communication is realized between the two chips by a  
small pulse transformer, with one or two turns on its primary  
and secondary. This type of communication does not intro-  
duce any poles or zeroes in the control loop and yields the  
fastest possible loop response for the isolated switching  
regulator.  
Operation beyond 1 MHz  
Voltage, current, or charge mode control  
Typical Applications  
Y
Isolated offline switching power supplies  
Y
Isolated DC/DC power converters  
Y
Flyback regulator  
Y
The secondary-side controller contains a precision 1.242V  
reference, an error amplifier, and a trimmed oscillator which  
is programmed with a single resistor. The LM3101 can real-  
ize voltage, current or charge mode control. Power supply  
monitor features include power-on reset with programmable  
delay and overvoltage protection.  
Forward converter  
Block Diagram  
TL/H/11436–1  
C
1995 National Semiconductor Corporation  
TL/H/11436  
RRD-B30M75/Printed in U. S. A.  

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