RCLAMP0504N SEMTECH | Alldatasheet
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1 www.semtech.com PROTECTION PRODUCTS - RailClamp RClamp0504N Low Capacitance TVS Diode Array Description Features Circuit Diagram Package Dimensions Revision 01/16/2008 RailClamps are surge rated diode arrays designed to protect high speed data interfaces. The RClamp series has been specifically designed to protect sensitive components which are connected to data and trans- mission lines from overvoltage caused by electrostatic discharge (ESD), electrical fast transients (EFT), and lightning. The unique design of the RClamp series devices incorporates eight surge rated, low capacitance steer- ing diodes and a TVS in a single package. During transient conditions, the steering diodes direct the transient to either the positive side of the power supply line or to ground. The internal TVS diode prevents over-voltage on the power line, protecting any down- stream components. The RClamp TM0504N has a low typical capacitance of 3pF and operates with virtually no insertion loss to 1GHz. This makes the device ideal for protection of high-speed data lines such as USB 2.0, Firewire, DVI, and gigabit Ethernet interfaces. The RClamp0504N is in a 6-pin, RoHS compliant, SLP2020P6 package. It measures 2.0 x 2.0 x 0.60mm. The leads are spaced at a pitch of 0.5mm and are finished with lead-free NiPdAu. Each device may be used to protect four high-speed data or trans- mission lines. They may be used to meet the ESD immunity requirements of IEC 61000-4-2, Level 4 (±15kV air, ±8kV contact discharge).
Applications
Mechanical Characteristics USB 2.0 Power and Data Line Protection Video Graphics Cards Monitors and Flat Panel Displays Digital Video Interface (DVI) 10/100/1000 Ethernet Notebook Computers ESD protection for high-speed data lines to IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact) IEC 61000-4-4 (EFT) 40A (5/50ns) IEC 61000-4-5 (Lightning) 12A (8/20µs) Array of surge rated diodes with internal TVS Diode Small package saves board space Protects four I/O lines Low capacitance: 3pF typical Low clamping voltage Low operating voltage: 5.0V Solid-state silicon-avalanche technology SLP2020P6 Package RoHS/WEEE Compliant Nominal Dimensions: 2.0 x 2.0 x 0.60 mm Lead Pitch: 0.65mm Lead Finish: NiPdAu Marking : Marking Code and Date Code Packaging : Tape and Reel 2.00
0.65 BSC
0.60 2.00
6 Pin SLP package (Bottom Side View)
2 2008 Semtech Corp. www.semtech.com PROTECTION PRODUCTS RClamp0504N Absolute Maximum Rating N4050pmalCR retemaraPl obmySs noitidnoCm uminiMl acipyTm umixaMs tinU egatloVffO-dnatSesreveRV MWR 2ot5niP5 V egatloVnwodkaerBesreveRV RB It Am1= 2ot5niP tnerruCegakaeLesreveRI R V MWR C°52=T,V5= 2ot5niP 5A µ egatloVdrawroFV F If Am51=2 .1V egatloVgnipmalCV C I PP sµ02/8=pt,A1= dnuorGotnipO/IynA 5.21V egatloVgnipmalCV C I PP sµ02/8=pt,A5= dnuorGotnipO/IynA 5.71V ecnaticapaCnoitcnuJC j VR zHM1=f,V0= dnuorGotnipO/IynA
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VR zHM1=f,V0= snipO/IneewteB 5.1F p gnitaRl obmySe ulaVs tinU )sµ02/8=pt(rewoPesluPkaePP kp 003s ttaW )sµ02/8=pt(tnerruCesluPkaePI PP 21A )riA(2-4-00016CEIrepDSE )tcatnoC(2-4-00016CEIrepDSE V DSE 51 Vk erutarepmeTgnitarepOT J 521+ot55-C ° erutarepmeTegarotST GTS 051+ot55-C ° Electrical Characteristics (T = 25 oC)
3 2008 Semtech Corp. www.semtech.com PROTECTION PRODUCTS RClamp0504N Typical Characteristics Non-Repetitive Peak Pulse Power vs. Pulse Time Power Derating Curve 100 110 0 25 50 75 100 125 150 Ambient Temperature - T A (oC) % of Rated Power or IPP Clamping Voltage vs. Peak Pulse CurrentPulse Waveform Forward Voltage vs. Forward Current Normalized Capacitance vs. Reverse Voltage 0.01 0.1 0.1 1 10 100 1000 Pulse Duration - tp (µs) Peak Pulse Power - PPk (kW) 100 110 0 5 10 15 20 25 30 Time (µs) Percent of I PP e-t td = IPP/2 Waveform Parameters: tr = 8µs td = 20µs 02468 1 0 1 2 1 4 Peak Pulse Current - IPP (A) Clamping Voltage - VC (V) Waveform Parameters: tr = 8µs td = 20µs 0.5 1.5 2.5 3.5 02468 1 0 1 2 1 4 Forward Current - I F (A) Forward Voltage - V F (V) Waveform Parameters: tr = 8µs td = 20µs 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.1 1.2 1.3 1.4 1.5 012345 Reverse Voltage - VR (V) CJ(VR) / CJ(VR=0) f = 1MHz Line-Gnd Line-Line
4 2008 Semtech Corp. www.semtech.com PROTECTION PRODUCTS RClamp0504N Device Connection Options for Protection of Four High-Speed Data Lines This device is designed to protect four data lines from transient over-voltages by clamping them to a fixed reference. When the voltage on the protected line exceeds the reference voltage (plus diode V F) the steering diodes are forward biased, conducting the transient current away from the sensitive circuitry. Data lines are connected at pins 1, 3, 4 and 6. The negative reference is connected at pin 2. This pin should be connected directly to a ground plane on the board for best results. The path length is kept as short as possible to minimize parasitic inductance. The positive reference is connected at pin 5. The options for connecting the positive reference are as follows: 1. To protect data lines and the power line, connect pin 5 directly to the positive supply rail (V CC). In this configuration the data lines are referenced to the supply voltage. The internal TVS diode prevents over-voltage on the supply rail. 2. In applications where the supply rail does not exit the system, the internal TVS may be used as the reference. In this case, pin 5 is not connected. The steering diodes will begin to conduct when the voltage on the protected line exceeds the working voltage of the TVS (plus one diode drop).3. Applications Information Vcc In 1 In 2 In 3 In 41 NC In 1 In 2 In 3 In 41 ESD Protection With RailClamps RailClamps are optimized for ESD protection using the rail-to-rail topology. Along with good board layout, these devices virtually eliminate the disadvantages of using discrete components to implement this topology. Consider the situation shown in Figure 1 where dis- crete diodes or diode arrays are configured for rail-to- rail protection on a high speed line. During positive duration ESD events, the top diode will be forward biased when the voltage on the protected line exceeds the reference voltage plus the V F drop of the diode. For negative events, the bottom diode will be biased when the voltage exceeds the V F of the diode. At first approximation, the clamping voltage due to the charac- teristics of the protection diodes is given by: V C = VCC + VF (for positive duration pulses) VC = -V F (for negative duration pulses) However, for fast rise time transient events, the effects of parasitic inductance must also be consid- ered as shown in Figure 2. Therefore, the actual clamping voltage seen by the protected circuit will be: V C = VCC + V F + L P diESD/dt (for positive duration pulses) VC = -V F - L G diESD/dt (for negative duration pulses) ESD current reaches a peak amplitude of 30A in 1ns for a level 4 ESD contact discharge per IEC 61000-4-2. Figure 1 - “Rail-Figure 1 - “Rail-Figure 1 - “Rail-Figure 1 - “Rail-Figure 1 - “Rail- TTTTTo-Rail” Pro-Rail” Pro-Rail” Pro-Rail” Pro-Rail” Pr oooootttttection Tection Tection Tection Tection T opologyopologyopologyopologyopology (First Approximation)(First Approximation)(First Approximation)(First Approximation)(First Approximation)
6 2008 Semtech Corp. www.semtech.com PROTECTION PRODUCTS RClamp0504N Figure 4 - 10/100/1000 Ethernet Protection to IEC 61000-4-2 RClamp0504N RClamp0504N Applications Information (continued)
7 2008 Semtech Corp. www.semtech.com PROTECTION PRODUCTS RClamp0504N RClamp0504N Spice Model sretemaraPecipSN4050pmalCR retemaraPt inU) DRCL(1D) DRCL(2D) SVT(3D SIp mA0 2-E10 2-E14 1-E75.8 VBt loV0 810 28 JVt loV3 6.09 5.06 6.0 SRm hO5 91.07 53.02 15.0 VBIp mA3 -E13 -E13 -E1 OJCd araF2 1-E22 1-E22 1-E772 TTc es9 -E145.29 -E145.29 -E145.2 M- -1 0.01 0.01 32.0 N- -1 .11 .11 .1 GEV e1 1.11 1.11 1.1 Applications Information - Spice Model
8 2008 Semtech Corp. www.semtech.com PROTECTION PRODUCTS RClamp0504N Outline Drawing - SO-8 Land Pattern -SLP2020P6 Outline Drawing -SLP2020P6 (LASER MARK) INDICATOR PIN 1 E E A B SEATING PLANE C aaa c D LxN E/2 C E/2 bxN bbb C A B e N A CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). COPLANARITY APPLIES TO THE EXPOSED PAD AS WELL AS THE TERMINALS. NOTES: 2.101.90.083.074 1.651.40 2.00.079 .055 .065 E INCHES .025 BSC b .007 bbb aaa N D L e C .011 .028 DIM A MIN .000 .020 0.40 0.96 0.30 0.71 .003 .003 .014 .061 .034 .016 .038 0.08 0.08 0.35 1.55 0.86 0.05 0.65 DIMENSIONS MIN 0.00 NOM (.007) .024 .001 MAX .002 .026 NOM 0.50 0.03 (0.17) 0.60 (.075)C (1.90) GZ Y F (C) F .034 0.86 B .065 1.65 B P X THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY. CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR NOTES: DIM X Y P G MILLIMETERSINCHES .014 .026 .049 .026 0.35 0.65 0.65 1.25 DIMENSIONS COMPANY'S MANUFACTURING GUIDELINES ARE MET. 2.55.100Z
9 2008 Semtech Corp. www.semtech.com PROTECTION PRODUCTS RClamp0504N Contact Information Semtech Corporation Protection Products Division
200 Flynn Road, Camarillo, CA 93012
Phone: (805)498-2111 FAX (805)498-3804 Marking Codes Ordering Information INDICATOR PIN 1 0504N YYWW YYWW = Date Code (YY = Year, WW = Work Week) Tape and Reel Specification epaT htdiW )xaM(,BD 1 DE F K )XAM( P0 P2 P) XAM(TW mm8 mm2.4 )561.( mm1.0+5.1 mm0.0- 500.+95.0( )000.- mm8.0 50.0± )130.( 01.±057.1 mm )400.±960.( 50.0±5.3 mm )200.±831.( mm4.2 )490.( 1.0±0.4 mm -00.±751.( 1.0±0.4 mm -00.±751.( -m50.0±0.2 m )200.±970.( mm4.0 )610.( mm0.8 mm3.0+ mm1.0- )210.±213.( 0A0 B0 K rebmuNtraP gnikroW egatloV repytQ leeR leeR eziS TCT.N4050pmalCRV 50 00,3h cnI7 Pin 1 Location User Direction of feed Device Orientation in Tape Notes: 1) This is a lead-free, RoHs compliant product RailClamp and RClamp are marks of Semtech Corporation