HomedatasheetUC3901DWTR

UC3901DWTR Datasheet

Feedback Loop Power Controllers
Share:
Manufacturer

Description

The UC1901 family( UC3901DWTR ) is 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, these devices feature 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 todays 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 switching frequency of a SMPS. An additional feature is a status monitoring circuit which provides an activelow output when the sensed error voltage is within ± 10% of the reference. 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. UC3901DWTR Features • An Amplitude-Modulation System for Transformer Coupling an Isolated Feedback Error Signal• Low-Cost 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
Features

Parameters

[{"Name":"Reference Voltage:","Value":"1.5 V"},{"Name":"Output Current:","Value":"- 35 mA"},{"Name":" Maximum Operating Temperature:","Value":"+ 70 C"},{"Name":" Minimum Operating Temperature:","Value":"0 C"},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""}]

Manufacturer information

FAIRCHILD SEMICONDUCTOR

Fairchild has a rich history as a pioneer in the semiconductor industry and that pioneering spirit endures today. In an era where diversity can dilute focus and hamper innovation, we specialize in the development and manufacturing of a complete portfolio of low- to high-power solutions for the mobile, industrial, cloud, automotive, lighting, and computing industries. Fairchild is one of the most reliable partners in the industry, offering the shortest time from concept to silicon, expert FAEs for customer support, and a flexible, multi-source supply chain. Our vision is clear – anticipate the power efficiencies demanded by tomorrow’s electronic products and deliver an amazing design experience

Warm Hint

What HQEW.NET can offer here?
1. www.hqew.net/product-data provides numerous and various electronic part data-sheet and technology document here., if it can't be shown, Please feel free to ask us for it.
2. www.hqew.net/news provides the latest information of the semiconductor industry or the electronics industry for you.
3. www.hqew.net provides verified suppliers and numerous electronic components for your demand and business.
Any questions you can contact us by email cs@hqew.net.
Request for Datasheet

  • Part No     :
  • Your Email:
  • Content     :

related datasheet
Browse Alphabetically: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0 1 2 3 4 5 6 7 8 9
Contact Us

+86-755-83536845

One to One Customer Service

17190417227