UM5080A [UNIONSEMI]

Low Capacitance Bidirectional Single Line TVS Protection Diode;


型号：	UM5080A
厂家：	Union Semiconductor, Inc.
描述：	Low Capacitance Bidirectional Single Line TVS Protection Diode 电视
文件：	总6页 (文件大小：172K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

UM5080

Low Capacitance Bidirectional Single Line TVS

Protection Diode

UM5080 DFN2 1.0×0.6

UM5080A DFN2 1.0×0.6

General Description

The UM5080(A) TVS protection diode is designed to replace multilayer varistors (MLVs) in

portable applications such as cell phones, notebook computers, and PDA’s. They feature large

cross-sectional area junctions for conducting high transient currents, offer desirable electrical

characteristics for board level protection, such as fast response time, lower operating voltage,

lower clamping voltage and no device degradation when compared to MLVs. The UM5080(A)

TVS protection diode protects sensitive semiconductor components from damage or upset due to

electrostatic discharge (ESD) and other voltage induced transient events. The UM5080(A) is

available in DFN2 1.0×0.6 (compatible with SOD923/SOD882/CSP 1.0×0.6) package with

working voltages of 5 volt. It gives designer the flexibility to protect bidirectional single line in

applications where arrays are not practical. Additionally, it may be “sprinkled” around the board

in applications where board space is at a premium. It may be used to meet the ESD immunity

requirements of IEC 61000-4-2, ±30kV air, ±30kV contact discharge.

Applications

Features

Transient protection for data lines to

IEC 61000-4-2 (ESD) ±30kV (air), ±30kV

(contact)

Cell Phone Handsets and Accessories

Personal Digital Assistants (PDA’s)

Notebooks, Desktops and Servers

Portable Instrumentation

Cordless Phones

Smart Card

Digital Cameras

MP3 Players

Small package for use in portable electronics

Suitable replacement for MLV’s in ESD protection

applications

Bidirectional TVS protection

Stand off voltages: 5V

Low leakage current

Low diode capacitance

Small Body Outline Dimensions: 1.0mm×0.6mm

Pin Configurations

Top View

UM5080(A)

DFN2 1.0×0.6

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UM5080

Ordering Information

Part

Number

Working

Voltage

Marking

Code

Packaging Type

DFN2 1.0×0.6mm²

Channel

Shipping Qty

5000/7 Inch

Tape & Reel

8000/7 Inch

Tape & Reel

UM5080

5.0V

UM5080A

Absolute Maximum Ratings

RATING

Peak Pulse Power (tp = 8/20μs)

Maximum Peak Pulse Current (t=8/20μs)

Lead Soldering Temperature

Operating Temperature

SYMBOL

VALUE

140

UNITS

Watts

P_PK

I_PP

Amps

T_L

260 (10 sec.)

-55 to +125

-55 to +150

°C

T_J

Storage Temperature

T_STG

Symbol Definition

PARAMETER

Maximum Reverse Peak Pulse Current

Clamping Voltage @ I_pp

SYMBOL

I_PP

V_C

Working Peak Reverse Voltage

Maximum Reverse Leakage Current @ V_RWM

Breakdown Voltage @ I_T

V_RWM

I_R

V_BR

I_T

Test Current

Peak Power Dissipation

Max. Capacitance @ V_R= 0V, f = 1MHz

P_PK

C_J

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UM5080

Electrical Characteristics (T=25°C, Device for 5.0V Reverse Stand-off Voltage)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNIT

Reverse Stand-Off

Voltage

V_RWM

Reverse Breakdown

Voltage

V_BR

I_R

I_T= 1mA

6.5

8.5

Reverse Leakage Current

V_RWM= 5V, T=25°C

μA

I_PP= 5A, t_p= 8/20μS

9.7

Clamping Voltage

V_C

C_J

I_PP=11A, t_p= 8/20μS

V_R= 0V, f = 1MHz

V_R= 2.5V, f = 1MHz

13.6

Junction Capacitance

C_J

Reverse dynamic resistance

Forward dynamic resistance

R_dyn,rev

R_dyn,fwd

0.55

0.35

_PP>2A

Typical Operating Characteristics

Clamping Voltage vs. Peak Pulse Current

Non-Repetitive Peak Pulse Power vs. Pulse Time

0.1

Waveform

parameters:

tr=8uS

td=20uS

0.02

0.04 0.1

100

1000

Pulse Duration - tp(uS)

Peak Pulse Current - Ipp(A)

Junction Capacitance vs. Reverse Voltage

Reverse Voltage (V)

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UM5080

Applications Information

Device Connection Options

UM5080(A) ESD protection diode is designed to protect one bidirectional data, I/O or power

supply line from the damage caused by ESD and surge pulses. The device is bidirectional and may

be used on lines where the signal polarity is above ground and below ground.

Circuit Board Layout Recommendations for Suppression of ESD

Good circuit board layout is critical for the suppression of ESD induced transients. The following

guidelines are recommended:

1. Place the TVS near the input terminals or connectors to restrict transient coupling.

2. Minimize the path length between the TVS and the protected line.

3. Minimize all conductive loops including power and ground loops.

4. The ESD transient return path to ground should be kept as short as possible.

5. Never run critical signals near board edges.

6. Use ground planes whenever possible. For multilayer printed-circuit boards, use ground

vias.

7. Keep parallel signal paths to a minimum.

8. Avoid running protection conductors in parallel with unprotected conductor.

9. Avoid using shared transient return paths to a common ground point.

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UM5080

Package Information

Outline Drawing

UM5080(A) DFN2 1.0×0.6

millimeters

Min Max

Inches

Symbol

Min

Max

0.450 0.550 0.018 0.021

0.000 0.050 0.000 0.002

0.190 0.300 0.007 0.012

0.950 1.075 0.037 0.042

0.550 0.675 0.022 0.027

0.340 0.550 0.013 0.022

0.650

0.026

0.050 0.150 0.002 0.006

Note: R is Optional.

DIMENSIONS

MILLIMETERS

Symbol

Min

0.40

0.00

Max

0.50

0.05

0.125REF

1.00

0.95

0.55

0.20

0.45

1.05

0.65

0.30

0.55

0.60

0.25

0.50

0.65BSC

Land Pattern

NOTES:

1. Compound dimension: 1.00×0.60；

2. Unit: mm;

3.General tolerance ±0.025 mm unless otherwise

specified;

4. The layout is just for reference.

Tape and Reel Orientation

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UM5080

IMPORTANT NOTICE

The information in this document has been carefully reviewed and is believed to be accurate.

Nonetheless, this document is subject to change without notice. Union assumes no responsibility

for any inaccuracies that may be contained in this document, and makes no commitment to update

or to keep current the contained information, or to notify a person or organization of any update.

Union reserves the right to make changes, at any time, in order to improve reliability, function or

design and to attempt to supply the best product possible.

Union Semiconductor, Inc

Add: 2F, No. 3, Lane 647 Songtao Road, Shanghai 201203

Tel: 021-51093966

Fax: 021-51026018

Website: www.union-ic.com

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UM5080A [UNIONSEMI]

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