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UC2901DTR/80209G4 PDF预览

UC2901DTR/80209G4

更新时间: 2024-01-22 08:59:46
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
12页 599K
描述
Isolated Feedback Generator

UC2901DTR/80209G4 技术参数

是否无铅:含铅生命周期:Obsolete
零件包装代码:SOIC包装说明:SOIC-14
针数:14Reach Compliance Code:unknown
HTS代码:8542.39.00.01风险等级:5.05
Is Samacsys:N模拟集成电路 - 其他类型:ANALOG CIRCUIT
JESD-30 代码:R-PDSO-G14长度:8.65 mm
功能数量:1端子数量:14
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP14,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE认证状态:Not Qualified
座面最大高度:1.75 mm子类别:Other Analog ICs
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
技术:BIPOLAR温度等级:INDUSTRIAL
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL宽度:3.9 mm
Base Number Matches:1

UC2901DTR/80209G4 数据手册

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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 SCHEMATICNovember S  
µ
µ
µ
UDG-98080  
SLUS279A - November 1998 - Revised January 2010  

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