UESD6V8L1F - Union Semiconductor

UESD6V8L1F
Low Capacitance Single Line ESD Protection Diode Array
UESD6V8L1F DFN2/FBP2 1.0×0.6
General Description
The UESD6V8L1F ESD 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 UESD6V8L1F ESD protection diode protects sensitive semiconductor components from
damage or upset due to electrostatic discharge (ESD) and other voltage induced transient events.
The UESD6V8L1F is available in a DFN2/FBP2 1.0×0.6 (Compatible with SOD882) package
with working voltages of 5 volt.
It gives designer the flexibility to protect one unidirectional 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,
Level 4 (±15kV air, ±8kV contact discharge).
UESD6V8L1F is fabricated using dual diffusion technology offer low junction capacitance (20pF),
which is required in high speed signal protection application.
Applications
Features
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Cell Phone Handsets and Accessories
Personal Digital Assistants (PDA’s)
Notebooks, Desktops and Servers
Portable Instrumentation
Cordless Phones
Digital Cameras
Peripherals
MP3 Players
Pin Configurations
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Transient Protection for Data Lines to IEC
61000-4-2 (ESD) ±15kV (Air), ±8kV
(Contact)
Small Package for Use in Portable Electronics
Suitable Replacement for MLV’s in ESD
Protection Applications
Protect One I/O or Power Line
Low Clamping Voltage
Stand-off Voltages: 5V
Low Leakage Current
Solid-State Silicon-Avalanche Technology
Small Body Outline Dimensions:
1.0mm×0.6mm
Top View
UESD6V8L1F
DFN2/FBP2 1.0×0.6
(Compatible with SOD882)
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UESD6V8L1F
Ordering Information
Part Number
Working
Voltage
Packaging Type
Channel
Marking
Code
UESD6V8L1F
5.0V
DFN2 1.0mm×0.6mm
1
E2
UESD6V8L1F
5.0V
FBP2 1.0mm×0.6mm
1
E2
Shipping Qty
5000pcs/7Inch
Tape & Reel
5000pcs/7Inch
Tape & Reel
Absolute Maximum Ratings
RATING
SYMBOL
VALUE
UNITS
Peak Pulse Power (tp = 8/20μs)
PPK
55
Watts
Maximum Peak Pulse Current (tp=8/20μs)
ESD per IEC 61000-4-2 (Air)
ESD per IEC 61000-4-2 (Contact)
Lead Soldering Temperature
IPP
Amps
VPP
TL
10.8
±15
±8
260 (10 sec.)
Operating Temperature
Storage Temperature
TJ
TSTG
-55 to +125
-55 to +150
°C
°C
kV
°C
Symbol Definition
PARAMETER
Maximum Reverse Peak Pulse Current
Clamping Voltage @ Ipp
Working Peak Reverse Voltage
Maximum Reverse Leakage Current @ VRWM
Breakdown Voltage @ It
Test Current
Forward Current
Forward Voltage @ IF
Peak Power Dissipation
Max. Capacitance @ VR = 0V, f = 1MHz
SYMBOL
IPP
VC
VRWM
IR
VBR
It
IF
VF
PPK
C
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UESD6V8L1F
Electrical Characteristics
(T=25°C, Device for 5.0V Reverse Stand-off Voltage)
PARAMETER
SYMBOL
Reverse Stand-Off Voltage
CONDITIONS
MIN
TYP
MAX
UNIT
5
V
7.2
V
μA
VRWM
Reverse Breakdown Voltage
Reverse Leakage Current
Clamping Voltage
VBR
It = 1mA
IR
VRWM = 5V, T=25°C
0.1
IPP = 1A, tp = 8/20μs
7
IPP =2A, tp = 8/20μs
8
IPP =5A, tp = 8/20μs
10.8
VC
6
6.8
V
Forward Voltage
VF
IF = 10mA
0.8
V
Junction Capacitance
CJ
VR = 0V, f = 1MHz
17
20
pF
Junction Capacitance
CJ
VR = 2.5V, f = 1MHz
8
10
pF
Typical Operating Characteristics
Non-Repetitive Peak Pulse Power vs. Pulse Time
Clamping Voltage vs. Peak Pulse Current
11
Clamping Voltage - Vc (V)
10
1
0.1
9
8
Waveform
parameters:
tr=8uS
td=20uS
7
6
0.01
0.1
0
1
10
100
1
2
1000
3
4
5
Peak Pulse Current - Ipp (A)
Pulse Duration - tp(uS)
Forward Voltage vs. Forward Current
Junction Capacitance vs. Reverse Voltage
5.0
25
4.5
4.0
20
3.5
Capacitance-(pF)
Forward Voltage-Vf(V)
Peak Pulse Power - Ppk(kW)
10
3.0
2.5
2.0
1.5
1.0
15
10
5
0.5
0
0.0
0
1
2
3
4
Forward Current-If(A)
5
6
0
1
2
3
4
Revers Voltage-Vr(V)
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UESD6V8L1F
Application Information
Device Connection Options
UESD6V8L1F ESD protection diode is designed to protect one data, I/O, or power supply line.
The device is unidirectional and may be used on lines where the signal polarity is above ground.
The cathode dot should be placed towards the line that is to be protected.
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:
Place the TVS near the input terminals or connectors to restrict transient coupling.
Minimize the path length between the TVS and the protected line.
Minimize all conductive loops including power and ground loops.
The ESD transient return path to ground should be kept as short as possible.
Never run critical signals near board edges.
Use ground planes whenever possible. for multilayer printed-circuit boards, use ground vias.
Keep parallel signal paths to a minimum.
Avoid running protection conductors in parallel with unprotected conductor.
Minimize all printed-circuit board conductive loops including power and ground loops.
Avoid using shared transient return paths to a common ground point.
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UESD6V8L1F
Package Information
DFN2 1.0×0.6
Outline Drawing
Symbol
A
A1
b
D
E
E1
e
R
Symbol
A
A1
A3
D
E
b
L
e
DIMENSIONS
MILLIMETERS
INCHES
Min
Max
Min
Max
0.470
0.530
0.019
0.021
0.000
0.050
0.000
0.002
0.200
0.300
0.008
0.012
0.950
1.075
0.037
0.042
0.550
0.675
0.022
0.027
0.450
0.550
0.018
0.022
0.400
0.016
0.050
0.150
0.002
0.006
DIMENSIONS
MILLIMETERS
Min
Typ
0.40
0.00
0.125REF
0.95
1.00
0.55
0.60
0.20
0.25
0.45
0.50
0.65BSC
Max
0.50
0.05
1.05
0.65
0.30
0.55
FBP2 1.0×0.6
Outline Drawing
Symbol
A
A1
b
D
D1
E
E1
L
DIMENSIONS
MILLIMETERS
Min
Max
0.550
0.010
0.070
0.275
0.325
0.950
1.050
0.275
0.325
0.400REF
0.550
0.650
0.450REF
INCHES
Min
Max
0.021
0.000 0.003
0.011 0.013
0.037 0.041
0.011 0.013
0.016REF
0.022 0.026
0.018REF
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UESD6V8L1F
Land Pattern
NOTES:
1. Compound dimension: 1.00×0.60:
2. Unit: mm;
3. General tolerance±0.025mm unless otherwise
specified;
4. The layout is just for reference.
Tape and Reel Orientation
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UESD6V8L1F
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: Unit 606, No.570 Shengxia Road, Shanghai 201210
Tel: 021-51093966
Fax: 021-51026018
Website: www.union-ic.com
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