AOZ8204DI Four-line TVS Diode Array General Description

AOZ8204DI Four-line TVS Diode Array  General Description
AOZ8204DI
Four-line TVS Diode Array
General Description
Features
The AOZ8204 is a transient voltage suppressor diode
array designed to protect data lines from high transient
conditions and ESD. This state-of-the-art device utilizes
AOS leading edge Trench Vertical Structure [TVS]2 ™
technology for superior clamping performance.
z ESD protection for high-speed data lines:
This device incorporates four TVS diodes in a single
package. Due to the flexibility of the design, the package
can be configured as a two channel bidirectional TVS
array. During transient conditions, the TVS diodes direct
the transient to ground. They may be used to meet the
ESD immunity requirements of IEC 61000-4-2, Level 4
(±15kV air, ±8kV contact discharge).
The AOZ8204 comes in an RoHS compliant DFN
package and is rated over a -40°C to +85°C ambient
temperature range.
The very small 1.6 x 1.6mm DFN package makes it ideal
for applications where PCB space is a premium. The
small size and high ESD protection makes it ideal for
protecting high speed video and data communication
interfaces.
Typical Application
– Exceeds: IEC 61000-4-2 (ESD) ±30kV (air),
±30kV (contact)
– Human Body Model (HBM) ±30kV
z Trench Vertical Structure [TVS]2 ™ based technology
used to achieve excellent ESD clamping performance
z Small package saves board space
z Low insertion loss
z Protects four unidirectional or two bidirectional I/O lines
z Low clamping voltage
z Low operating voltage: 5.0V
Applications
z Portable handheld devices
z Keypads, data lines
z Notebook computers
z Digital Cameras
z Portable GPS
z MP3 players
Pin Configuration
I/O1
I/O2
1
6
2
5
3
4
I/O3
I/O4
Top View
Unidirection Protection of Four Lines
I/O1
I/O2
3
2
1
4
5
6
Bidirection Protection of Two Lines
Rev. 1.0 August 2011
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Page 1 of 7
AOZ8204DI
Ordering Information
Part Number
Ambient Temperature Range
Package
Environmental
AOZ8204DI
-40°C to +85°C
DFN 1.6x1.6
Green Product
RoHS Compliant
AOS Green Products use reduced levels of Halogens, and are also RoHS compliant.
Please visit www.aosmd.com/web/quality/rohs_compliant.jsp for additional information.
Absolute Maximum Ratings
Exceeding the Absolute Maximum ratings may damage the device.
Parameter
Rating
VP – VN
5V
Peak Pulse Current (IPP), tP = 8/20µs
5A
Storage Temperature (TS)
-65°C to +150°C
ESD Rating per IEC61000-4-2,
Contact(1)
±30kV
ESD Rating per IEC61000-4-2,
Air(1)
±30kV
Model(2)
±30kV
ESD Rating per Human Body
Notes:
1. IEC 61000-4-2 discharge with CDischarge = 150pF, RDischarge = 330Ω.
2. Human Body Discharge per MIL-STD-883, Method 3015 CDischarge = 100pF, RDischarge = 1.5kΩ.
Maximum Operating Ratings
Parameter
Rating
Junction Temperature (TJ)
-40°C to +125°C
Electrical Characteristics
TA = 25°C unless otherwise specified. Specifications in BOLD indicate a temperature range of -40°C to +85°C.
Symbol
VRWM
VBR
Parameter
Reverse Working Voltage
Conditions
Min.
Max.
Units
5.0
V
Between pin 5 and 2(3)
2(4)
Reverse Breakdown Voltage
IT = 1mA, between pins 5 and
IR
Reverse Leakage Current
VRWM = 5V, between pins 5 and 2
VF
Diode Forward Voltage
IF = 15mA
VCL
Channel Clamp Voltage
Positive Transients
Negative Transient
IPP = 15A, tp = 100ns, any I/O pin to Ground
Channel Clamp Voltage
Positive Transients
Negative Transient
IPP = 25A, tp = 100ns, any I/O pin to Ground
Junction Capacitance
VR = 0V, f = 1MHz, any I/O pin to Ground
Cj
Typ.
8.0
0.70
V
0.1
µA
1
V
7.0
-6.75
V
V
7.50
-10.25
V
V
17
pF
0.85
15
Notes:
3. The working peak reverse voltage, VRWM, should be equal to or greater than the DC or continuous peak operating voltage level.
4. VBR is measured at the pulse test current IT.
Rev. 1.0 August 2011
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Page 2 of 7
AOZ8204DI
Typical Performance Characteristics
Clamping Voltage vs. Peak Pulse Current
Clamping Voltage vs. Current
12
11
10
9
8
7
6
5
4
3
2
1
0
(tperiod = 100ns, tr = 1ns)
14
Clamping Voltage (V)
Clamping Voltage, VCL (V)
(tperiod = 100ns, tr = 1ns)
12
10
8
6
4
2
5
10
15
20
25
0
30
5
10
20
25
30
Current (A)
Peak Pulse Current, IPP (A)
I/O – Gnd Insertion Loss (S21) vs. Frequency
Capacitance vs. Reverse Bias
(Vp = 3.3V)
5
20
0
18
Capacitance (pF)
Insertion Loss (dB)
15
-5
-10
-15
-20
16
14
12
10
8
6
-25
1
10
100
1000
10000
1
2
3
4
5
Reverse Bias (Volts)
Frequency (MHz)
Rev. 1.0 August 2011
0
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Page 3 of 7
AOZ8204DI
Applications Information
Device Connection for Protection of Four Data Lines
I/O1
These devices are designed to protect up to four
unidirectional data lines. The device is connected as
follows.
I/O2
1. Unidirectional protection of four I/O lines is achieved
by connecting pins 1, 3, 4, and 6 to the data lines.
Connect pin 2 to ground. The ground connection
should be made directly to the ground plane for best
results. The path length is kept as short as possible
to reduce the effects of parasitic inductance in the
board traces.
1
3
4
1
6
2
5
3
4
6
I/O3
2
Circuit Diagram
I/O4
Protection of Four Unidirectional Lines
Device Connection for Protection of Two
Bidirectional Data Lines
I/O1
These devices are designed to protect up to two
bidirectional data lines. The device is connected as
follows.
1. Bidirectional protection of two I/O lines is achieved by
connecting pins 1 and 3 to the data lines. Connect
pin 4 and 6 to ground. The ground connection should
be made directly to the ground plane for best results.
The path length is kept as short as possible to reduce
the effects of parasitic inductance in the board traces.
I/O2
1
3
4
6
Circuit Diagram
1
6
2
5
3
4
Protection of Two Bidirectional Lines
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:
z Place the TVS near the input terminals or connectors
to restrict transient coupling.
z Minimize the path length between the TVS and the
protected line.
z Minimize all conductive loops including power and
ground loops.
z The ESD transient return path to ground should be
kept as short as possible.
z Never run critical signals near board edges.
z Use ground planes whenever possible.
Rev. 1.0 August 2011
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Page 4 of 7
AOZ8204DI
Package Dimensions, DFN 1.6 x 1.6, 6L
D
e
b
6
E
L
1
TOP VIEW
e1
Pin 1 ID
BOTTOM VIEW
A
A1
SIDE VIEW
c
RECOMMENDED LAND PATTERN
Dimensions in millimeters
0.50
1.25
Symbols
A
Min.
0.50
A1
b
c
0.00
0.22
D
E
1.55
1.55
e
0.45
0.30
e1
L
Nom.
0.55
Max.
0.60
0.02
0.05
0.25
0.28
1.52 REF.
1.60
1.60
1.65
1.65
0.50 BSC
0.225
1.0 REF
0.275 0.325
UNIT: mm
Notes:
1. Dimensions and tolerancing conform to ASME Y14.5M-1994.
2. All dimensions are in millimeters.
Rev. 1.0 August 2011
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Page 5 of 7
AOZ8204DI
Tape and Reel Dimensions, DFN 1.6 x 1.6, 6L
Carrier Tape
P2
P1
D1
D0
E1
K0
E2 E
B0
5 Max.
A0
P0
T
Feeding Direction
UNIT: mm
Package
DFN 1.6x1.6
A0
1.78
±0.05
B0
1.78
±0.05
K0
0.69
±0.05
D0
ø1.50
±0.10
D1
E
E1
ø0.50
8.00
1.75
±0.05 +0.30 / -0.10 ±0.10
Reel
E2
3.50
±0.05
P0
4.00
±0.10
P1
4.00
±0.10
P2
2.00
±0.05
T
0.20
±0.02
W1
S
M
K
N
G
R
H
W
UNIT: mm
Tape Size Reel Size
8mm
ø178
M
ø178.0
±1.0
N
ø60.0
±1.0
W
11.80
±0.5
W1
9.0
±0.5
H
ø13.0
+0.5 / –0.2
S
2.40
±0.10
K
10.25
±0.2
E
ø9.8
R
—
Leader / Trailer & Orientation
Trailer Tape
300mm Min.
Rev. 1.0 August 2011
Components Tape
Orientation in Pocket
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Leader Tape
500mm Min.
Page 6 of 7
AOZ8204DI
Part Marking
AOZ8204DI
(DFN 1.6 x 1.6)
PWL
Product Number Code
Assembly Lot Code
Week Code
This data sheet contains preliminary data; supplementary data may be published at a later date.
Alpha & Omega Semiconductor reserves the right to make changes at any time without notice.
LIFE SUPPORT POLICY
ALPHA & OMEGA SEMICONDUCTOR PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL
COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS.
As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant into
the body or (b) support or sustain life, and (c) whose
failure to perform when properly used in accordance
with instructions for use provided in the labeling, can be
reasonably expected to result in a significant injury of
the user.
Rev. 1.0 August 2011
2. A critical component in any component of a life
support, device, or system whose failure to perform can
be reasonably expected to cause the failure of the life
support device or system, or to affect its safety or
effectiveness.
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