Datasheet > EPR-68

EPR-68

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
帕沃英蒂格盛 - POWERINT		开关
页数	文件大小	规格书
28页	2226K
描述
Engineering Prototype Report for EP 68 - 6.6 W DC-DC Flyback Converter Using DPA-Switch- (DPA423G)

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EPR-68 数据手册

Engineering Prototype Report for EP-68 –

6.6 W DC-DC Flyback Converter Using

DPA-Switch^™(DPA423G)

Title

Specification Input: 36-57 VDC, Output: 3.3 V / 2 A

Application

Author

Power over Ethernet (PoE) Power Supply

Power Integrations Applications Department

Document

Number

EPR-68

Date

19-Jul-2005

1.1

Revision

Summary and Features

• High efficiency, low parts count and low cost power supply

• Ideally suited for PoE, VoIP, standby and other distributed 48 V DC-DC

conversion applications

• Signature circuit is fully compatible with IEEE 802.3af requirements

• DPA-Switch Integrates

• PWM controller and 220 V MOSFET switching device

• Accurate input voltage UV detection and OV protection

• Thermal, overload, short-circuit and open loop protection

• Regulation at zero load (cycle skipping)

• Accurate 400 kHz trimmed internal oscillator

• Small footprint 2" × 1", low overall height 0.9", dual layer PCB

• 100% surface mount construction

The products and applications illustrated herein (including circuits external to the products and transformer

construction) may be covered by one or more U.S. and foreign patents or potentially by pending U.S. and foreign

patent applications assigned to Power Integrations. A complete list of Power Integrations’ patents may be found

at www.powerint.com.

Power Integrations

5245 Hellyer Avenue, San Jose, CA 95138 USA.

Tel: +1 408 414 9200 Fax: +1 408 414 9201

www.powerint.com

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