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UC3901N..

芯片, 隔离反馈生成器, 14-DIP

TEXAS INSTRUMENTS UC3901N..
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制造商产品编号:
UC3901N..
库存编号
1755667

产品概述

The UC3901N is an Isolated Feedback Generator designed to solve many of the problems associated with closing a feedback control loop across a voltage isolation boundary. As a stable and reliable alternative to an optical coupler. This device features an amplitude modulation system which allows a loop error signal to be coupled with a small RF transformer or capacitor. 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 this device allows synchronization to a system clock or to the switching frequency of a SMPS. 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.
  • An amplitude-modulation system for transformer coupling an isolated feedback error signal
  • Alternative to optical couplers
  • Internal 1% reference and error amplifier
  • Internal carrier oscillator usable to 5MHz
  • Modulator synchronizable to an external clock
  • Loop status monitor
  • Green product and no Sb/Br

应用

工业

产品信息

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:
10mA

:
4.5V

:
40V

:
DIP

:
14引脚

:
支持国防、航天和医疗应用

:
0°C

:
70°C

:
-

:
MSL 1 -无限制
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CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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