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http://www.union-ic.com

Rev.04 Jul.2012

1/11

UM4601/4611/8601/8611

Multi-line ESD/EMI Protection for Color LCD Interfaces

UM4601 DFN8 2.0×2.0

UM4611 DFN8 1.7×1.3

UM8601 DFN16 4.0×1.6

UM8611 DFN16 3.3×1.3

General Description

The UM4601/UM4611/UM8601/UM8611 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 an

inductor - capacitor network for EMI filtering. A typical inductor value of 17nH and a capacitor

value of 15pF are used to achieve 24dB 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 UM4601 is in a RoHS compliant DFN8 2.0×2.0 package, the UM4611 is in a RoHS compli-

ant DFN8 1.7×1.3 package, the UM8601 is in a RoHS compliant DFN16 4.0×1.6 package and the

UM8611 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

Features

Color LCD Protection

Cell Phone CCD Camera Lines

Clamshell Cell Phones

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: 24dB minimum

attenuation from 800MHz to 2.7GHz

TVS Working Voltage: 5V

Inductor: 17nH (Typical)

Protection and filtering for multi lines

UM4601/4611: four lines

UM8601/8611: eight lines

Solid-state Technology

Ordering Information

Part

Number

Working

Voltage

Packaging

Type

Channel

Marking

Code

Shipping Qty

UM4601

5.0V

DFN8 2.0×2.0

4

ABA

UM4611

5.0V

DFN8 1.7×1.3

4

AN

UM8601

5.0V

DFN16 4.0×1.6

8

8601

UM8611

5.0V

DFN16 3.3×1.3

8

8611

3000pcs /7Inch

Tape & Reel