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NUP4304MR6 Low Capacitance Diode Array for ESD Protection in Four Data Lines
NUP4304MR6 is a MicroIntegrationTM device designed to provide protection for sensitive components from possible harmful electrical transients; for example, ESD (electrostatic discharge).
Features http://onsemi.com PIN CONFIGURATION AND SCHEMATIC
* Low Capacitance (1.5 pF Maximum Between I/O Lines) * Single Package Integration Design * Provides ESD Protection for JEDEC Standards JESD22 * * * * * * * * * * * * *
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 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
Rating Reverse Voltage Forward Current Peak Forward Surge Current Repetitive Peak Reverse Voltage Average Rectified Forward Current (Note 1) (averaged over any 20 ms period) Repetitive Peak Forward Current Non-Repetitive Peak Forward Current t = 1.0 ms t = 1.0 ms t = 1.0 S Symbol VR IF IFM(surge) VRRM IF(AV) Value 70 200 500 70 715 Unit Vdc mAdc mAdc V mA 6 5
I/O 1 VP 2 1/O 3
6 I/O 5 VN 4 I/O
MARKING DIAGRAM
4 3
Applications
1
2
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)
MAXIMUM RATINGS (Each Diode) (TJ = 25C unless otherwise noted)
ORDERING INFORMATION
Device NUP4304MR6T1 NUP4304MR6T1G Package TSOP-6 Shipping 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.
IFRM IFSM
450 2.0 1.0 0.5
mA A
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.
(c) Semiconductor Components Industries, LLC, 2006
1
January, 2006 - Rev. 1
Publication Order Number: NUP4304MR6/D
NUP4304MR6
THERMAL CHARACTERISTICS
Characteristic Thermal Resistance Junction-to-Ambient Lead Solder Temperature Maximum 10 Seconds Duration Junction Temperature Storage Temperature Symbol RqJA TL TJ Tstg Max 556 260 -40 to +85 -55 to +150 Unit C/W C C C
ELECTRICAL CHARACTERISTICS (TJ = 25C unless otherwise noted) (Each Diode)
Characteristic OFF CHARACTERISTICS Reverse Breakdown Voltage (I(BR) = 100 mA) Reverse Voltage Leakage Current (VR = 70 Vdc) (VR = 25 Vdc, TJ = 150C) (VR = 70 Vdc, TJ = 150C) V(BR) IR 70 - - - - - - - - - - - - - 0.8 1.6 - - - - - 2.5 30 50 1.5 3 715 855 1000 1250 Vdc mAdc Symbol Min Typ Max Unit
Capacitance (between I/O pins) (VR = 0 V, f = 1.0 MHz) Capacitance (between I/O pin and ground) (VR = 0 V, f = 1.0 MHz) Forward Voltage (IF = 1.0 mAdc) (IF = 10 mAdc) (IF = 50 mAdc) (IF = 150 mAdc)
CD CD VF
pF pF mVdc
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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NUP4304MR6
Curves Applicable to Each Cathode
100 IF, FORWARD CURRENT (mA) TA = 85C 10 TA = -40C IR , REVERSE CURRENT (A) 10
TA = 150C TA = 125C
1.0
0.1
TA = 85C TA = 55C
1.0
TA = 25C
0.01 TA = 25C 0 10 20 30 40 VR, REVERSE VOLTAGE (VOLTS) 50
0.1
0.2
0.4
0.6 0.8 1.0 VF, FORWARD VOLTAGE (VOLTS)
1.2
0.001
Figure 1. Forward Voltage
1.75 CD, DIODE CAPACITANCE (pF)
Figure 2. Leakage Current
1.5
1.25
1.0
0.75
0
2
4
6
8
VR, REVERSE VOLTAGE (VOLTS)
Figure 3. Capacitance
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NUP4304MR6
APPLICATIONS INFORMATION 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. 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. Option 1 Protection of four data lines using Vcc as reference.
I/O 1 I/O 2 1 VCC 2 3 I/O 3 I/O 4 6 5 4
Option 2 Protection of four data lines and the supply rail using VCC as a reference and an external TVS diode.
I/O 1 I/O 2 VCC 1 2 3 I/O 3 I/O 4 6 5 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 1 10 k 2 3 I/O 3 I/O 4 5 4 6
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.
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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NUP4304MR6
Option 4 Protection of four data lines without biasing of the internal steering diodes.
I/O 1 I/O 2 1 2 3 I/O 3 I/O 4 6 5 4 5 NUP4304MR6 Equivalent Circuit 2 D1 D3 D5 D7
1
3 D2
4 D4
6 D6 D8
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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NUP4304MR6
PACKAGE DIMENSIONS
TSOP-6 CASE 318F-05 ISSUE L
D
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. DIM A A1 b c D E e L HE q 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
6
5 1 2
4
HE
E
3
b e q
0.05 (0.002) A1
A L
C
SOLDERING FOOTPRINT*
2.4 0.094
1.9 0.074 0.7 0.028
0.95 0.037 0.95 0.037
1.0 0.039
SCALE 10:1
mm inches
*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).
ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. "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 nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 61312, Phoenix, Arizona 85082-1312 USA Phone: 480-829-7710 or 800-344-3860 Toll Free USA/Canada Fax: 480-829-7709 or 800-344-3867 Toll Free USA/Canada Email: orderlit@onsemi.com N. American Technical Support: 800-282-9855 Toll Free USA/Canada Japan: ON Semiconductor, Japan Customer Focus Center 2-9-1 Kamimeguro, Meguro-ku, Tokyo, Japan 153-0051 Phone: 81-3-5773-3850 ON Semiconductor Website: http://onsemi.com Order Literature: http://www.onsemi.com/litorder For additional information, please contact your local Sales Representative.
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NUP4303MR6/D

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