RClamp0544T RailClamp Ultra Low Capacitance TVS Arrays  PPRROOTTEECCTTIIOONN PPRROODDUUCCTTSS - RailClamp PRELIMINARY Description Features RailClamps are ultra low capacitance TVS arrays (cid:139) ESD protection for high-speed data lines to designed to protect high speed data interfaces. This IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact) series has been specifically designed to protect sensitive IEC 61000-4-5 (Lightning) 5A (8/20µs) components which are connected to high-speed data IEC 61000-4-4 (EFT) 40A (5/50ns) and transmission lines from overvoltage caused by ESD (cid:139) Package design optimized for high speed lines (electrostatic discharge), CDE (Cable Discharge Events), (cid:139) Flow-Through design and EFT (electrical fast transients). (cid:139) Protects four I/O lines The RClamp0544T has a typical capacitance of only (cid:139) Low capacitance: 0.3pF typical (I/O to I/O) 0.30pF between I/O pins. This allows it to be used on (cid:139) Low clamping voltage circuits operating in excess of 3GHz without signal (cid:139) Low operating voltage: 5V attenuation. They may be used to meet the ESD (cid:139) Solid-state silicon-avalanche technology immunity requirements of IEC 61000-4-2, Mechanical Characteristics Level 4 (±15kV air, ±8kV contact discharge). Each device is designed to protect four lines (two differential (cid:139) SLP2010P8T 8-pin package (2.0 x 1.0 x 0.4mm) pairs). (cid:139) RoHS/WEEE Compliant The RClamp0544T is in a 8-pin, RoHS/WEEE compliant, (cid:139) Lead Pitch: 0.4mm SLP2010P8T package. It measures 2.0 x 1.0 x 0.4mm. (cid:139) Lead finish: NiPdAu The leads are spaced at a pitch of 0.4mm and are fin- (cid:139) Marking: Marking code + date code ished with lead-free NiPdAu. They are designed for easy (cid:139) Packaging: Tape and Reel PCB layout by allowing the traces to run straight through the device. The combination of small size, low capaci- tance, and high level of ESD protection makes them a Applications flexible solution for applications such as mini HDMI, (cid:139) Cell Phones and Accessories MDDI, USB, and eSATA interfaces. (cid:139) Mini HDMI (cid:139) MDDI Ports (cid:139) USB (cid:139) LVDS (cid:139) eSATA (cid:139) PCI Express Dimensions Circuit Diagram 2.00 1 2 GND 3 4 1.00 Pin 1 Pin 2 Pin 3 Pin 4 8 7 6 5 0.40 BSC GND 0.40 Note: Pins 5-8 not internally connected Nominal Dimensions in mm 4-Line Protection Revision 7/28/2009 1 www.semtech.com

RClamp0544T PROTECTION PRODUCTS PRELIMINARY Absolute Maximum Rating Rating Symbol Value Units Peak PulsePower(tp =8/20µs) P 75 Watts pk Peak PulseCurrent (tp =8/20µs) I 5 A PP ESDperIEC61000-4-2(Air) V +/- 18 kV ESD ESDperIEC61000-4-2(Contact) +/- 12 Operating Temperature T -55to+125 °C J StorageTemperature T -55to+150 °C STG Electrical Characteristics (T=25oC) Parameter Symbol Conditions Minimum Typical Maximum Units ReverseStand-Off Voltage V Pin 1, 2, 3, or4toGND 5 V RWM ReverseBreakdown Voltage V I =1mA, 6.5 8 11 V BR t Pin 1, 2, 3, or4toGND ReverseLeakageCurrent I V =5.0V, 0.005 0.100 µA R RWM Pin 1, 2, 3, or4toGND Clamping Voltage V I =1A, tp =8/20µs 12 V C PP Pin 1, 2, 3, or4toGND Clamping Voltage V I =5A, tp =8/20µs 15 V C PP Pin 1, 2, 3, or4toGND Junction Capacitance C V =0V, f =1MHz, 0.7 0.80 pF j R Pin 1, 2, 3, or4toGND V =0V, f =1MHz, 0.3 0.4 pF R Between I/Opins  2009 Semtech Corp. 2 www.semtech.com

RClamp0544T PROTECTION PRODUCTS PRELIMINARY Typical Characteristics Non-Repetitive Peak Pulse Power vs. Pulse Time Pulse Waveform 110 Waveform 10 100 Parameters: 90 tr = 8µs W) 80 td = 20µs k Pulse Power - P (PP 0.11 Percent of IPP 3456700000 e-t td = IPP/2 k ea 20 P 10 0 0.01 0.1 1 10 100 0 5 10 15 20 25 30 Pulse Duration - tp (us) Time (µs) Clamping Voltage vs. Peak Pulse Current Normalized Capacitance vs. Reverse Voltage 25 2 f = 1MHz 1.8 V) 20 1.6 (C Line to Line V 1.4 age - 15 0) 1.2 olt =R V V 1 mping 10 Line to Gnd Waveform V) / C(RJ 0.8 Cla 5 Parameters: C(J 0.6 tr = 8µs 0.4 td = 20µs 0.2 0 0 1 2 3 4 5 6 0 0 1 2 3 4 5 Peak Pulse Current - IPP (A) Reverse Voltage - VR (V) ESD Clamping (Pin 1, 2, 3, or 4 to GND) USB 2.0 Eye Pattern with RClamp0544T (+8kV Contact per IEC 61000-4-2) Note: Data is taken with a 10x attenuator  2009 Semtech Corp. 3 www.semtech.com

RClamp0544T PROTECTION PRODUCTS PRELIMINARY Typical Characteristics (Con’t) Insertion Loss S21 - I/O to I/O Insertion Loss S21 - I/O to GND CH1 S21 LOG 6 dB / REF 0 dB CH1 S21 LOG 6 dB / REF 0 dB 1: -0.0715 dB 1: -0.2214 dB 800 MHz 800 MHz 0 dB 5 2: -900.004 M4H2 zd B 0 dB 5 2: -900.200 M9H5 zd B 1 2 3 4 1 2 3 4 -6 dB 3: -0.4690 dB -6 dB 3: -0.6419 dB 1.8 GHz 1.8 GHz -12 dB -12 dB 4: -0.5150 dB 4: -0.2029 dB 2.5 GHz 2.5 GHz -18 dB -18 dB -24 dB -24 dB -30 dB -30 dB -36 dB -36 dB -42 dB -42 dB -48 dB -48 dB 1 10 100 1 3 1 10 100 1 3 MHz MHz MHz GHz GHz MHz MHz MHz GHz GHz START . 030 MHz STOP 3 000. 0000 00 MHz START . 030 MHz STOP 3 000. 0000 00 MHz HDMI Eye Pattern (720p with RClamp0544T) HDMI Eye Pattern (1080p with RClamp0544T)  2009 Semtech Corp. 4 www.semtech.com

RClamp0544T PROTECTION PRODUCTS PRELIMINARY Applications Information Design Recommendations for HDMI Protection Input 1 1 8 NC Adding external ESD protection to HDMI ports can be Input 2 2 7 NC challenging. First, ESD protection devices have an inherent junction capacitance. When adding even a GND small amount of capacitance, it will cause the Input 3 3 6 NC impedance of the differential pair to drop. Second, large packages and land pattern requirements can Input 4 4 5 NC cause discontinuities that adversely affect signal integrity. The RClamp0544T is specifically designed for protection of high-speed interfaces, such as HDMI. It Figure 1 - SLP2010P8T Pin Configuration (Top View) presents <0.3pF capacitance between the pairs while being rated to handle >±8kV ESD contact discharges Pin Identification (>±15kV air discharge) as outlined in IEC 61000-4-2. The device is in a leadless SLP package that is less 1, 2, 3, 4 Input Lines than 1.1mm wide. It is designed such that the traces flow straight through the device. The narrow package Output Lines 5, 6, 7, 8 (NoInternal Connection) and flow-through design reduce discontinuities and minimize impact on signal integrity. This becomes even CenterTab Ground more critical as signal speeds increase. Pin Configuration Figure 2 is an example of how to route the high speed differential traces through the RClamp0544T. The PCB traces are used to connect the pin pairs for each line (pin 1 to pin 8, pin 2 to pin 7, pin 3 to pin 6, pin 4 to pin 5). For example, line 1 enters at pin 1 and exits at Pin 8, and the PCB trace connects pin 1 and 8 to- gether. This is true for lines connected at pins 2, 3, and 4 also. Note that there are no internal connec- tions to pins 5 - 8. Ground is connected at the center tabs. One large ground pad should be used in lieu of two separate pads. TDR Measurements for HDMI The combination of low capacitance, small package, and flow-through design means it is possible to use these devices to meet the HDMI impedance require- ments of 100 Ohm ±15% without any PCB board modification. For signal integrity purposes, the best results will be obtained by using the RClamp0544T to protect the high-speed differential pairs. This is because the device is designed such that the data lines from the FFFFFiiiiiggggguuuuurrrrreeeee 22222 ----- FFFFFlllllooooowwwww ttttthhhhhrrrrrooooouuuuuggggghhhhh LLLLLaaaaayyyyyooooouuuuuttttt UUUUUsssssiiiiinnnnnggggg connector line up with the I/O pins of the device RRRRRCCCCClllllaaaaammmmmppppp00000555554444444444TTTTT without altering the trace routing.  2009 Semtech Corp. 5 www.semtech.com

RClamp0544T PROTECTION PRODUCTS PRELIMINARY Applications Information DDaattaa 22++ DDaattaa 22-- DDaattaa 11++ DDaattaa 11-- TToo HHDDMMII Data 0+ GGrraapphhiiccss CChhiipp Data 0-- Clk+ Clk-- RClamp0544T (3 Each) CEC SCL SDA HP Detect 5VPower Gnd FFFFFiiiiiggggguuuuurrrrreeeee 33333..... HHHHHDDDDDMMMMMIIIII PPPPPrrrrrooooottttteeeeeccccctttttiiiiiooooonnnnn EEEEExxxxxaaaaammmmmpppppllllleeeee HHH EEE ooo SSS HHHooosssttt TTTxxx+++ AA ++ st Pst Pst P ATAATAATA HHHooosssttt TTTxxx--- AA -- lululu ggg HHHooosssttt RRRxxx --- BBB --- HHHooosssttt RRRxxx +++ BBB +++ RRCCllaammpp00554444TT AA ++ DDeevv RRxx ++ AA -- DDeevv RRxx -- e e cc vivi ee DD A A BBBBBB ------ DDeevv TTxx-- TT AAgg BBBBBB +++--- DDeevv TTxx++ SSuu EEPlPl RRCCllaammpp00554444TT FFFFFiiiiiggggguuuuurrrrreeeee 44444..... eeeeeSSSSSAAAAATTTTTAAAAA PPPPPrrrrrooooottttteeeeeccccctttttiiiiiooooonnnnn EEEEExxxxxaaaaammmmmpppppllllleeeee  2009 Semtech Corp. 6 www.semtech.com

RClamp0544T PROTECTION PRODUCTS PRELIMINARY Applications Information MDDI_Data0+ MDDI_Data0- Gnd Gnd MDDI_Data1+ MDDI Link MDDI Link MDDI_Data1- Controller Controller RClamp0544T RClamp0544T MDDI_Stb+ MDDI_Stb- Gnd Gnd RClamp0522T RClamp0522T Host Pwr Host Gnd HOST DISPLAY uClamp0501P uClamp0501P FFFFFiiiiiggggguuuuurrrrreeeee 55555..... MMMMMDDDDDDDDDDIIIII PPPPPrrrrrooooottttteeeeeccccctttttiiiiiooooonnnnn EEEEExxxxxaaaaammmmmpppppllllleeeee  2009 Semtech Corp. 7 www.semtech.com

RClamp0544T PROTECTION PRODUCTS PRELIMINARY Applications Information - Spice Model RClamp0544T Spice Model RClamp0544T Spice Parameters Parameter Unit D1 D2 D3 IS Amp 1E-20 1E-20 2E-12 BV Volt 100 100 8.2 VJ Volt 0.83 0.83 0.6 RS Ohm 1.5 0.6 0.2 IBV Amp 1E-3 1E-3 1E-3 CJO Farad 0.25E-12 0.25E-12 56E-12 TT sec 2.541E-9 2.541E-9 2.541E-9 M -- 0.01 0.01 0.23 N -- 1.1 1.1 1.1 EG eV 1.11 1.11 1.11 Note: Spice model is for simulating transient response only.  2009 Semtech Corp. 8 www.semtech.com

RClamp0544T PROTECTION PRODUCTS PRELIMINARY OOuuttlliinnee DDrraawwiinngg -- SSOL-P82010P8T A D B DIMENSIONS INCHES MILLIMETERS DIM MINNOMMAX MINNOMMAX A .015 .016 .017 0.37 0.40 0.43 PIN 1 E AA12 0.00(..000051).002 0.00(00..1032)0.05 INDICATOR b .006 .008 .010 0.15 0.20 0.25 (LASER MARK) D .077 .079 .082 1.95 2.00 2.08 E .037 .039 .043 0.95 1.00 1.08 e .016 BSC 0.40 BSC L .013 .015 .017 0.32 0.38 0.43 N 8 8 aaa .003 0.08 A SEATING bbb .004 0.10 aaa C PLANE A2 A1 C 1 2 E/2 LxN R 0.075 N bxN e bbb C A B D/2 NOTES: 1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). Land Pattern - SLP2010P8T DIMENSIONS DIM INCHES MILLIMETERS C (.035) (0.88) (C) G Z G .008 0.21 P .016 0.40 Y X .008 0.20 Y .026 0.67 Z .061 1.55 P X NOTES: 1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). 2. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY. CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET.  2009 Semtech Corp. 9 www.semtech.com

RClamp0544T PROTECTION PRODUCTS PRELIMINARY Marking Codes Ordering Information Qtyper Part Number ReelSize 0544T Reel PIN 1 RClamp0544T.TCT 3000 7Inch YYWW INDICATOR RailClamp and RClamp are marks of Semtech Corporation YYWW = Date Code Tape and Reel Specification Pin 1 Location User Direction of feed Device Orientation in Tape A0 B0 K0 1.21+/-0.05mm 2.21+/-0.05mm 0.66+/-0.05mm Tape K B,(Max) D D1 E F P P0 P2 T(MAX) W Width (MAX) 8.0mm 0.5mm 1.750±.10 1.5+0.1mm 3.5±0.05 4.0±0.1 4.0±0.1 2.0±0.05 +0.3mm 8mm 4.2mm ±0.05 mm 2.4mm 0.4mm -0.0mm) mm mm mm mm -0.1mm Contact Information Semtech Corporation Protection Products Division 200 Flynn Road, Camarillo, CA 93012 Phone: (805)498-2111 FAX (805)498-3804  2009 Semtech Corp. 10 www.semtech.com