ONSEMI NUP4304MR6

NUP4304MR6
Low Capacitance Diode
Array for ESD Protection in
Four Data Lines
NUP4304MR6 is a MicroIntegration™ device designed to provide
protection for sensitive components from possible harmful electrical
transients; for example, ESD (electrostatic discharge).
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Features
• Low Capacitance (1.5 pF Maximum Between I/O Lines)
• Single Package Integration Design
• Provides ESD Protection for JEDEC Standards JESD22
•
•
•
•
PIN CONFIGURATION
AND SCHEMATIC
Machine Model = Class C
Human Body Model = Class 3B
Protection for IEC61000−4−2 (Level 4)
8.0 kV (Contact)
15 kV (Air)
Ensures Data Line Speed and Integrity
Fewer Components and Less Board Space
Direct the Transient to Either Positive Side or to the Ground
6
USB 1.1 and 2.0 Data Line Protection
T1/E1 Secondary IC Protection
T3/E3 Secondary IC Protection
HDSL, IDSL Secondary IC Protection
Video Line Protection
Microcontroller Input Protection
Base Stations
I2C Bus Protection
Pb−Free Package is Available
5 VN
1/O 3
4 I/O
5
4
2
3
LG MG
G
TSOP−6
CASE 318F
PLASTIC
LG
= Specific Device Code
M
= Date Code
G
= Pb−Free Package
(Note: Microdot may be in either location)
Symbol
Value
Unit
Reverse Voltage
VR
70
Vdc
Forward Current
IF
200
mAdc
IFM(surge)
500
mAdc
Repetitive Peak Reverse Voltage
VRRM
70
V
Average Rectified Forward
Current (Note 1)
(averaged over any 20 ms period)
IF(AV)
715
mA
Repetitive Peak Forward Current
IFRM
450
mA
Non−Repetitive Peak Forward Current
t = 1.0 ms
t = 1.0 ms
t = 1.0 S
IFSM
Peak Forward Surge Current
VP 2
1
MAXIMUM RATINGS (Each Diode) (TJ = 25°C unless otherwise noted)
Rating
6 I/O
MARKING DIAGRAM
Applications
•
•
•
•
•
•
•
•
•
I/O 1
ORDERING INFORMATION
Device
NUP4304MR6T1
NUP4304MR6T1G
Package
Shipping†
TSOP−6
3000/Tape & Reel
TSOP−6 3000/Tape & Reel
(Pb−Free)
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
A
2.0
1.0
0.5
Maximum ratings are those values beyond which device damage can occur.
Maximum ratings applied to the device are individual stress limit values (not
normal operating conditions) and are not valid simultaneously. If these limits are
exceeded, device functional operation is not implied, damage may occur and
reliability may be affected.
1. FR−5 = 1.0 0.75 0.062 in.
© Semiconductor Components Industries, LLC, 2006
January, 2006 − Rev. 1
1
Publication Order Number:
NUP4304MR6/D
NUP4304MR6
THERMAL CHARACTERISTICS
Characteristic
Symbol
Max
Unit
RqJA
556
°C/W
Lead Solder Temperature
Maximum 10 Seconds Duration
TL
260
°C
Junction Temperature
TJ
−40 to +85
°C
Storage Temperature
Tstg
−55 to +150
°C
Thermal Resistance Junction−to−Ambient
ELECTRICAL CHARACTERISTICS (TJ = 25°C unless otherwise noted) (Each Diode)
Characteristic
Symbol
Min
Typ
Max
Unit
V(BR)
70
−
−
Vdc
IR
−
−
−
−
−
−
2.5
30
50
mAdc
Capacitance (between I/O pins)
(VR = 0 V, f = 1.0 MHz)
CD
−
0.8
1.5
pF
Capacitance (between I/O pin and ground)
(VR = 0 V, f = 1.0 MHz)
CD
−
1.6
3
pF
VF
−
−
−
−
−
−
−
−
715
855
1000
1250
mVdc
OFF CHARACTERISTICS
Reverse Breakdown Voltage (I(BR) = 100 mA)
Reverse Voltage Leakage Current
(VR = 70 Vdc)
(VR = 25 Vdc, TJ = 150°C)
(VR = 70 Vdc, TJ = 150°C)
Forward Voltage
(IF = 1.0 mAdc)
(IF = 10 mAdc)
(IF = 50 mAdc)
(IF = 150 mAdc)
1. FR−5 = 1.0 0.75 0.062 in.
2. Alumina = 0.4 0.3 0.024 in. 99.5% alumina.
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2
NUP4304MR6
Curves Applicable to Each Cathode
10
IR , REVERSE CURRENT (μA)
TA = 85°C
10
TA = −40°C
1.0
0.1
TA = 25°C
0.2
0.4
0.6
0.8
1.0
VF, FORWARD VOLTAGE (VOLTS)
TA = 125°C
1.0
TA = 85°C
0.1
TA = 55°C
0.01
0.001
1.2
TA = 150°C
TA = 25°C
10
0
Figure 1. Forward Voltage
20
30
40
VR, REVERSE VOLTAGE (VOLTS)
Figure 2. Leakage Current
1.75
CD, DIODE CAPACITANCE (pF)
IF, FORWARD CURRENT (mA)
100
1.5
1.25
1.0
0.75
0
2
4
6
VR, REVERSE VOLTAGE (VOLTS)
Figure 3. Capacitance
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3
8
50
NUP4304MR6
APPLICATIONS INFORMATION
Option 2
Protection of four data lines and the supply rail using VCC
as a reference and an external TVS diode.
The NUP4304MR6 is a low capacitance diode array
designed to protect sensitive electronics such as
communications systems, computers, and computer
peripherals against damage due to ESD events or transient
overvoltage conditions. Because of its low capacitance, it
can be used on high speed I/O data lines. The integrated
design of the NUP4304MR6 offers surge rated, low
capacitance steering diodes integrated in a single package
(TSOP−6). If a transient condition occurs, the steering
diodes will drive the transient to the positive rail of the
power supply or to ground.
I/O 1
I/O 2
VCC
NUP4304MR6 Configuration Options
The NUP4304MR6 is able to protect up to four data lines
against transient overvoltage conditions by driving them to
a fixed reference point for clamping purposes. The steering
diodes will be forward biased whenever the voltage on the
protected line exceeds the reference voltage (Vf or Vcc+Vf).
The diodes will force the transient current to bypass the
sensitive circuit.
Data lines are connected at pins 1, 3, 4 and 6. The negative
reference is connected at pin 5. This pin must be connected
directly to ground by using a ground plane to minimize the
PCB’s ground inductance. It is very important to reduce the
PCB trace lengths as much as possible to minimize parasitic
inductance.
1
6
2
5
3
4
I/O 3
I/O 4
If additional protection of the supply rail is desired, an
external TVS diode may be added across VCC and ground.
This will prevent overvoltage conditions on the supply rail
protecting the supply and other circuits connected to it.
Option 3
Protection of four data lines with bias and power supply
isolation resistor.
I/O 1
I/O 2
VCC
Option 1
Protection of four data lines using Vcc as reference.
I/O 1
I/O 2
VCC
1
6
2
5
3
4
1
6
2
5
3
4
10 k
I/O 3
I/O 4
The NUP4304MR6 can be isolated from the power supply
by connecting a series resistor between pin 2 and VCC. A
10 kW resistor is recommended for this application. This
will maintain bias on the internal steering diodes, reducing
their capacitance.
I/O 3
I/O 4
For this configuration, connect pin 2 directly to the
positive supply rail (Vcc), the data lines are referenced to the
supply voltage. Biasing of the steering diodes reduces their
capacitance.
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4
NUP4304MR6
2
Option 4
Protection of four data lines without biasing of the internal
steering diodes.
D1
I/O 1
I/O 2
1
3
D2
1
6
2
5
3
4
D3
4
D4
D5
D7
6
D6
D8
5
NUP4304MR6 Equivalent Circuit
I/O 3
I/O 4
In applications lacking a positive supply reference an
external TVS diode may be used as a reference. For these
applications, the TVS is connected between pin 2 and the
ground plane. The steering diodes will conduct whenever
the voltage on the protected line exceeds their forward
voltage plus the working voltage of the TVS diode (Vc=Vf
+ VTVS). In this case, the effective capacitance of the
steering diodes will be higher than if a bias was applied.
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5
NUP4304MR6
PACKAGE DIMENSIONS
TSOP−6
CASE 318F−05
ISSUE L
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. MAXIMUM LEAD THICKNESS INCLUDES
LEAD FINISH THICKNESS. MINIMUM LEAD
THICKNESS IS THE MINIMUM THICKNESS
OF BASE MATERIAL.
4. 318F−01, −02, −03 OBSOLETE. NEW
STANDARD 318F−04.
D
6
5
4
2
3
E
HE
1
DIM
A
A1
b
c
D
E
e
L
HE
q
b
e
C
A
0.05 (0.002)
q
L
A1
MIN
0.90
0.01
0.25
0.10
2.90
1.30
0.85
0.20
2.50
0°
MILLIMETERS
NOM
MAX
1.00
1.10
0.06
0.10
0.37
0.50
0.18
0.26
3.00
3.10
1.50
1.70
0.95
1.05
0.40
0.60
2.75
3.00
10°
−
MIN
0.035
0.001
0.010
0.004
0.114
0.051
0.034
0.008
0.099
0°
INCHES
NOM
0.039
0.002
0.015
0.007
0.118
0.059
0.037
0.016
0.108
−
MAX
0.043
0.004
0.020
0.010
0.122
0.067
0.041
0.024
0.118
10°
SOLDERING FOOTPRINT*
2.4
0.094
0.95
0.037
1.9
0.074
0.95
0.037
0.7
0.028
1.0
0.039
SCALE 10:1
mm Ǔ
ǒinches
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
MicroIntegration is a trademark of Semiconductor Components Industries, LLC (SCILLC).
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are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
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“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
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6
For additional information, please contact your
local Sales Representative.
NUP4303MR6/D