UM4701 datasheet, PDF - EEWORLD Datasheet

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UM4701: DescriptionMulti-line ESD/EMI Protection for Color LCD Interfaces; File Size352KB，11 Pages; ManufacturerUnion Semiconductor Limited; Websitehttp://www.union-ic.com/; Shanghai Yinglian Electronic Technology Co., Ltd. was established in 2001 and is a fabless integrated circuit design company. The company is committed to the research, development, design and sales of high-performance linear and mixed-signal integrated circuits, and its products are used in various electronic devices. The products of Shanghai Yinglian Electronic Technology Co., Ltd. bridge the analog world and the digital world by detecting, measuring, amplifying, converting power and providing circuit protection.

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Multi-line ESD/EMI Protection for Color LCD Interfaces

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UM4701/4711/8701/8711

Multi-line ESD/EMI Protection for Color LCD Interfaces

UM4701 DFN8 2.0×2.0

UM4711 DFN8 1.7×1.3

UM8701 DFN16 4.0×1.6

UM8711 DFN16 3.3×1.3

General Description

The UM4701/UM4711/UM8701/UM8711 is a (L-C) low pass filter array with integrated TVS

diodes. It is designed to suppress unwanted EMI signals and provide electrostatic discharge (ESD)

protection in portable electronic equipment. This device utilizes solid-state silicon-avalanche

technology for superior clamping performance and DC electrical characteristics. They have been

optimized for protection of color LCD and camera lines in cellular phones and other portable

electronics.

The device consists of identical circuits comprised of TVS diodes for ESD protection, and a 5

pole inductor-capacitor network for EMI filtering. A typical inductor value of 19nH and a

capacitor value of 12pF are used to achieve 30dB minimum attenuation from 800MHz to 2.7GHz.

The TVS diodes provide effective suppression of ESD voltages in excess of ±15kV (air discharge)

and ±8kV (contact discharge) per IEC 61000-4-2, level 4.

The UM4701 is in a RoHS compliant DFN8 2.0×2.0 package, the UM4711 is in a RoHS compli-

ant DFN8 1.7×1.3 package, the UM8701 is in a RoHS compliant DFN16 4.0×1.6 package and the

UM8711 is in a RoHS compliant DFN16 3.3×1.3 package. The leads are finished with lead-free.

The small package makes it ideal for use in portable electronics such as cell phones, digital still

cameras, and PDAs.

Applications

Color LCD Protection

Cell Phone CCD Camera Lines

Clamshell Cell Phones

Features

Bidirectional EMI Filter with Integrated TVS

for ESD Protection

ESD Protection to IEC 61000-4-2 (ESD)

Level 4, ±15kV (air), ±8kV (contact)

Filter performance: 30dB minimum

attenuation from 800MHz to 2.7GHz

TVS Working Voltage: 5V

Inductor: 19nH (Typical)

Capacitors: 12pF (Typical at V

= 2.5V)

Protection and filtering for multi lines

UM4701/4711: four lines

UM8701/8711: eight lines

Solid-state Technology

Ordering Information

Part

Number

UM4701

UM4711

UM8701

UM8711

Working

Voltage

5.0V

Packaging

Type

DFN8 2.0×2.0

DFN8 1.7×1.3

DFN16 4.0×1.6

DFN16 3.3×1.3

Channel

Marking

Code

ABB

8701

8711

Shipping Qty

3000pcs /7Inch

Tape & Reel

________________________________________________________________________

http://www.union-ic.com Rev.01 Aug.2012

1/11

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