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UC3901N

更新时间： 2024-01-26 21:07:15
品牌 Logo 应用领域
德州仪器 - TI 模拟IC信号电路光电二极管
页数 文件大小 规格书
7页 399K
描述
Isolated Feedback Generator

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中文翻译

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UC3901N 技术参数

是否无铅：含铅生命周期：Obsolete
包装说明：WAFERReach Compliance Code：unknown
HTS代码：8542.39.00.01风险等级：5.57
Is Samacsys：N模拟集成电路 - 其他类型：ANALOG CIRCUIT
JESD-30 代码：X-XUUC-N功能数量：1
最高工作温度：70 °C最低工作温度：
封装主体材料：UNSPECIFIED封装代码：DIE
封装形状：UNSPECIFIED封装形式：UNCASED CHIP
最大供电电压 (Vsup)：40 V最小供电电压 (Vsup)：4.5 V
标称供电电压 (Vsup)：10 V表面贴装：YES
温度等级：COMMERCIAL端子形式：NO LEAD
端子位置：UPPERBase Number Matches：1

UC3901N 数据手册

 浏览型号UC3901N的Datasheet PDF文件第2页浏览型号UC3901N的Datasheet PDF文件第3页浏览型号UC3901N的Datasheet PDF文件第4页浏览型号UC3901N的Datasheet PDF文件第5页浏览型号UC3901N的Datasheet PDF文件第6页浏览型号UC3901N的Datasheet PDF文件第7页 
UC1901  
UC2901  
UC3901  
Isolated Feedback Generator  
FEATURES  
DESCRIPTION  
• An Amplitude-Modulation System for  
Transformer Coupling an Isolated  
Feedback Error Signal  
The UC1901 family is designed to solve many of the problems associ-  
ated with closing a feedback control loop across a voltage isolation  
boundary. As a stable and reliable alternative to an optical coupler, these  
devices feature an amplitude modulation system which allows a loop er-  
ror signal to be coupled with a small RF transformer or capacitor.  
• Low-Cost Alternative to Optical  
Couplers  
The programmable, high-frequency oscillator within the UC1901 series  
permits the use of smaller, less expensive transformers which can readily  
be built to meet the isolation requirements of today's line-operated power  
systems. As an alternative to RF operation, the external clock input to  
these devices allows synchronization to a system clock or to the switch-  
ing frequency of a SMPS.  
• Internal 1% Reference and Error  
Amplifier  
• Internal Carrier Oscillator Usable to  
5MHz  
• Modulator Synchronizable to an  
External Clock  
An additional feature is a status monitoring circuit which provides an active-  
±
low output when the sensed error voltage is within 10% of the reference.  
• Loop Status Monitor  
The DRIVERA output, DRIVERB output, and STATUS output are disabled  
until the input supply has reached a sufficient level to allow proper operation  
of the device.  
Since these devices can also be used as a DC driver for optical couplers,  
the benefits of 4.5 to 40V supply operation, a 1% accurate reference, and a  
high gain general purpose amplifier offer advantages even though an AC  
system may not be desired.  
UC1901 SIMPLIFIED SCHEMATIC  
µ
µ
µ
UDG-98080  
11/98  
1234567

中文翻译

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UC3901N 替代型号

型号 品牌 替代类型 描述 数据表
UC2901NG4 TI

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 Isolated Feedback Generator
UC2901N TI

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 Isolated Feedback Generator

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