RCLAMP0524PA

Ultra Low Capacitance TVS Arrays PROTECTION PRODUCTS - RailClamp® PROTECTION Description RailClamp® T VS arrays are ultra low capacitance ESD protection devices designed to protect high speed data interfaces. This series has been specifically designed to protect sensitive components which are connected to high-speed data and transmission lines from overvoltage caused by ESD (electrostatic discharge), CDE (Cable Discharge Events), and EFT (electrical fast transients). The RClamp®0522PA and RClamp®0524PA have a typical capacitance of only 0.30pF between I/O pins. This allows it to be used on circuits operating in excess of 3GHz without signal attenuation. They may be used to meet the ESD immunity requirements of IEC 610004-2. The RClamp0522PA is designed to protect two lines, while the RClamp0524PA will protect four lines. The RClamp0522PA is in a 6-pin SLP1610P4 package. It measures 1.6 x 1.0 with a nominal height of 0.58mm. The RClamp0524PA is in a 10-pin SLP2510P8 package. It measures 2.5 x 1.0 with a nominal height of 0.58mm. The leads are spaced at a pitch of 0.5mm and are finished with lead-free NiPdAu. They are designed for easy PCB layout by allowing the traces to run straight through the device. The combination of small size, low capacitance, and high level of ESD protection makes them a flexible solution for applications such as HDMI, DisplayPortTM, MDDI, and eSATA interfaces. RClamp0522PA RClamp0524PA PRELIMINARY Features ESD protection for high-speed data lines to IEC 61000-4-2 (ESD) ±17kV (air), ±12kV (contact) IEC 61000-4-5 (Lightning) 5A (8/20μs) IEC 61000-4-4 (EFT) 40A (5/50ns) Package design optimized for high speed lines Flow-Through design Protects two or four I/O lines Low capacitance: 0.3pF typical (I/O to I/O) Low clamping voltage Low operating voltage: 5V Solid-state silicon-avalanche technology Mechanical Characteristics SLP1610P4 6-pin package (1.6 x 1.0 x 0.58mm) SLP2510P8 10-pin package (2.5 x 1.0 x 0.58mm) Pb-Free, Halogen Free, RoHS/WEEE Compliant Lead Pitch: 0.5mm Lead finish: NiPdAu Marking: Marking Code Packaging: Tape and Reel Applications High Definition Multi-Media Interface (HDMI) Digital Visual Interface (DVI) DisplayPortTM Interface MDDI Ports PCI Express eSATA Interfaces Circuit Diagram - RClamp0522PA Circuit Diagram - RClamp0524PA Pin 1 Pin 2 Pin 1 Pin 2 Pin 4 Pin 5 3, 4 3, 8 2-Line Protection Revision 3/8/2010 1 4-Line Protection www.semtech.com Ultra Low Capacitance TVS Arrays PROTECTION PRODUCTS - RailClamp® PROTECTION Pin Identification and Configuration RClamp0522P 6 5 4 RClamp0522PA RClamp0524PA PRELIMINARY RClamp0524P 10 9 8 7 6 1 Pin 1-2 5-6 3-4 2 3 Identification Input Lines Pin 1 2 3 4 5 Identification Input Lines Output Lines (No Internal Connection) Ground 1, 2, 4, 5 6, 7, 9, 10 3, 8 Output Lines (No Internal Connection) Ground SLP1610P4 Pin Configuration (Top View) SLP2510P8 Pin Configuration (Top View) Pin 1 Pin 2 Pin 1 Pin 2 Pin 4 Pin 5 3, 4 3, 8 Circuit Diagram Circuit Diagram Ordering Information Part Number RClamp0522PATCT RClamp0524PATCT Number of Lines Qty per Reel Reel Size 7 Inch 7 Inch 2 4 3000 3000 RailClamp and RClamp are marks of Semtech Corporation. 2 www.semtech.com RClamp0522PA RClamp0524PA PROTECTION PRODUCTS Absolute Maximum Rating Rating Peak Pulse Power (tp = 8/20μs) Peak Pulse Current (tp = 8/20μs) ESD per IEC 61000-4-2 (Air) ESD per IEC 61000-4-2 (Contact) Operating Temperature Storage Temperature Symbol Ppk IPP VESD TJ TSTG Value 150 5 +/- 17 +/- 12 -55 to +125 -55 to +150 PRELIMINARY Units Watts A kV °C °C Electrical Characteristics (T=25oC) Parameter Reverse Stand-Off Voltage Reverse Breakdown Voltage Reverse Leakage Current Clamping Voltage Symbol VRWM V BR IR VC Conditions Any I/O pin to ground It = 1mA Any I/O pin to ground VRWM = 5V, T=25°C Any I/O pin to ground IPP = 1A, tp = 8/20μs Any I/O pin to ground VR = 0V, f = 1MHz Between I/O pins VR = 0V, f = 1MHz Any I/O pin to ground Minimum Typical Maximum 5 Units V V 6 1 15 0.30 0.4 0.8 μA V pF pF Junction Capacitance Junction Capacitance Cj Cj © 2010 Semtech Corp. 3 www.semtech.com RClamp0522PA RClamp0524PA PROTECTION PRODUCTS Typical Characteristics Non-Repetitive Peak Pulse Power vs. Pulse Time 10 110 100 PRELIMINARY Power Derating Curve Peak Pulse Power - PPP (kW) % of Rated Power or IPP 90 80 70 60 50 40 30 20 10 1 0.1 0.01 0.1 1 10 Pulse Duration - tp (us) 100 1000 0 0 25 50 75 100 125 150 Ambient Temperature - TA (oC) Pulse Waveform 110 100 90 80 70 60 50 40 30 20 10 0 0 5 10 15 Time (µs) 20 25 30 0 PP Clamping Voltage vs. Peak Pulse Current (Between any I/O and Ground) Waveform Parameters: tr = 8µs td = 20µs Clamping Voltage -VC (V) 40 35 30 25 20 15 10 5 Waveform Parameters: tr = 8µs td = 20µs 0 1 2 3 4 5 6 Line to Gnd Line to Line Percent of I e-t td = IPP/2 Peak Pulse Current - IPP (A) Normalized Capacitance vs. Reverse Voltage Insertion Loss S21 - I/O to GND CH1 S21 LOG 6 dB / REF 0 dB 1: -0.086 dB 900 MHz 3 1.5 1.4 1.3 1.2 1.1 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 0 1 2 3 Reverse Voltage - VR (V) 4 0 dB 1 2 2: -0.0336 dB 1.8 GHz 3: -0.126 dB 2.5 GHz CJ(VR) / CJ(VR=0) -6 dB -12 dB -18 dB -24 dB -30 dB -36 dB f = 1 MHz -42 dB 5 -48 dB 1 MHz START . 030 MHz 10 MHz 100 MHz 3 1 GHz GHz STOP 3000. 000000 M Hz © 2010 Semtech Corp. 4 www.semtech.com RClamp0522PA RClamp0524PA PROTECTION PRODUCTS Typical Characteristics (Con’t) Insertion Loss S21 - I/O to I/O CH1 S21 LOG 6 dB / REF 0 dB 1: -0.076 dB 900 MHz 3 PRELIMINARY 0 dB 1 2 2: -0.062 dB 1.8 GHz 3: -0.1087 dB 2.5 GHz -6 dB -12 dB -18 dB -24 dB -30 dB -36 dB -42 dB -48 dB 1 MHz START . 030 MHz 10 MHz 100 MHz 3 1 GHz GHz STOP 3000. 000000 M Hz © 2010 Semtech Corp. 5 www.semtech.com RClamp0522PA RClamp0524PA PROTECTION PRODUCTS Applications Information Design Recommendations for HDMI Protection Adding external ESD protection to HDMI ports can be challenging. First, ESD protection devices have an inherent junction capacitance. Furthermore, adding even a small amount of capacitance will cause the impedance of the differential pair to drop. Second, large packages and land pattern requirements cause discontinuities that adversely affect signal integrity. The RClamp0524PA and RClamp0522PA are specifically designed for protection of high-speed interfaces such as HDMI. They present ±8kV ESD contact discharges (>±15kV air discharge) as outlined in IEC 61000-4-2. Each device is in a leadless SLP package that is less than 1.1mm wide. They are designed such that the traces flow straight through the device. The narrow package and flow-through design reduces discontinuities and minimizes impact on signal integrity. This becomes even more critical as signal speeds increase. Pin Configuration Figure 1 is an example of how to route the high speed differential traces through the RClamp0524PA. The solid line represents the PCB trace. The PCB traces are used to connect the pin pairs for each line (pin 1 to pin 10, pin 2 to pin 9, pin 4 to pin 7, pin 5 to pin 6). For example, line 1 enters at pin 1 and exits at Pin 10 and the PCB trace connects pin 1 and 10 together. This is true for lines connected at pins 2, 4, and 5 also. Ground is connected at pins 3 and 8. One large ground pad should be used in lieu of two separate pads. The same layout rules apply for the RClamp0522PA. 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 requirements of 100 Ohms ±15% without any PCB board modification. Figure 3 shows a typical impedance test result for a TDR risetime of 200ps using a Semtech evaluation board with 100 Ohm traces throughout. Measurements were taken using a TDR method as outlined in the HDMI Compliance Test Specification (CTS). In each PRELIMINARY 12 11 10 1 HDMI Connector GND 9 8 7 GND 1 6 5 4 GND 3 2 1 GND Figure 1. Flow through Layout Using Clamp052 4PA p0524P R Clam p052 4P A © 2010 Semtech Corp. 6 www.semtech.com RClamp0522PA RClamp0524PA case, the device meets the HDMI CTS requirement of 100 Ohm ±15% with plenty of margin. Figure 3 shows a typical HDMI 1.3 eye pattern at 1080p resolution. As shown there are no violations of the eye pattern with RClamp0524PA in the circuit. The RClamp0524PA may also be used to protect the remaining lines (I2C, CEC, and hot plug). Figure 4 shows the complete protection solution. Layout Guidelines for Optimum ESD Protection Good circuit board layout is critical not only for signal integrity, but also for effective suppression of ESD induced transients. For optimum ESD protection, the following guidelines are recommended: Place the device as close to the connector as possible. This practice restricts ESD coupling into adjacent traces and reduces parasitic inductance. The ESD transient return path to ground should be kept as short as possible. Whenever possible, use multiple micro vias connected directly from the device ground pad to the ground plane. Avoid running critical signals near board edges. PROTECTION PRODUCTS Applications Information PRELIMINARY X-axis Y-axis 1.79 98.3 (nsec) (Ohm) Figure 2 - TDR Measurement with 200ps risetime using Semtech Evaluation Board Note: Measurements were taken on SLP HDMI EVAL Rev C Board that has 100Ω differential traces impedance throughout (No trace Compensation). Protecting MDDI Ports with RClamp0524P and RClamp0522P The small package size and low capacitance of the RClamp0522PA and RClamp0524PA make them ideal for high-speed lines in portable applications. One such application is the protection of MDDI ports in cellular phones. MDDI is a serial data interface operating at 480Mb/s per line pair. The lines are scalable for increased speed and display resolution. A MDDI port protection example is shown in Figure 5. The RClamp0524PA is used to protect two differential line pairs while an RClamp0522PA is used to protect the MDDI strobe lines. Note that devices are used on both the main board and LCD side of the MDDI port. Devices on the main board are needed to protect the MDDI controller in the Baseband processor and devices on the LCD board to protect MDDI controller in LCD module. A single line TVS such as the uClamp0501P is used to protect the MDDI power line. The protection devices should be placed close to the connector of each board. Traces are routed directly through each device, minimizing parasitic inductance. Connections to the ground plane should be made with multiple micro vias when possible. © 2010 Semtech Corp. 7 Figure 3 - Typical HDMI 1.3 Eye Pattern (1080p) with RClamp0524PA www.semtech.com RClamp0522PA RClamp0524PA PROTECTION PRODUCTS Applications Information PRELIMINARY Data 2+ Data 2Data 1+ Data 1Data 0+ Data 0Clk+ Clk- To HDMI Graphics Chip RClamp0524PA Each) RClamp0544T (3(3 Each) CEC SCL SDA HP Detect 5VPower Gnd Figure 4. HDMI Protection MDDI_Data0+ MDDI_Data0Gnd Gnd MDDI_Data1+ MDDI_Data1- MDDI Link Controller MDDI Link Controller RClamp0524P RClamp0524PA RRClamp0524P Clamp0524PA MDDI_Stb+ MDDI_StbGnd Gnd RClamp0522PA RClamp0522P Host Pwr Host Gnd RClamp0522PA RClamp0522P HOST uClamp0501P uClamp0501P Figure 5. MDDI Port Protection © 2010 Semtech Corp. 8 www.semtech.com RClamp0522PA RClamp0524PA PROTECTION PRODUCTS Applications Information Spice Model PRELIMINARY RClamp0522PA Spice Model R Clamp0522PA Spice Parameters Parameter IS BV VJ RS IB V CJO TT M N EG Unit Amp Volt Volt Ohm Amp Farad sec --eV D1 1E-20 100 0.83 1.5 1E-3 0.25E-12 2.541E-9 0.01 1.1 1.11 D2 1E-20 100 0.83 0.6 1E-3 0.25E-12 2.541E-9 0.01 1.1 1.11 D3 2E-12 8.2 0.6 0.2 1E-3 56E-12 2.541E-9 0.23 1.1 1.11 © 2010 Semtech Corp. 9 www.semtech.com RClamp0522PA RClamp0524PA PROTECTION PRODUCTS Applications Information Spice Model PRELIMINARY RClamp0524PA Spice Model R Clamp0524PA Spice Parameters Parameter IS BV VJ RS IB V CJO TT M N EG Unit Amp Volt Volt Ohm Amp Farad sec --eV D1 1E-20 100 0.83 1.5 1E-3 0.25E-12 2.541E-9 0.01 1.1 1.11 D2 1E-20 100 0.83 0.6 1E-3 0.25E-12 2.541E-9 0.01 1.1 1.11 D3 2E-12 8.2 0.6 0.2 1E-3 56E-12 2.541E-9 0.23 1.1 1.11 © 2010 Semtech Corp. 10 www.semtech.com RClamp0522PA RClamp0524PA PROTECTION PRODUCTS Outline Outline Drawing - SO-8 SLP1610P4 A D B PRELIMINARY DIM PIN 1 INDICATOR (LASER MARK) E A A1 A2 b b1 D E e e1 L N aaa bbb DIMENSIONS INCHES MILLIMETERS MIN NOM MAX MIN NOM MAX .020 .023 .026 0.00 .001 .002 (.005) .006 .008 .010 .014 .016 .018 .059 .063 .067 .035 .039 .043 .020 BSC .039 BSC .012 .015 .017 4 .003 .004 0.50 0.58 0.65 0.00 0.03 0.05 (0.13) 0.15 0.20 0.25 0.35 0.40 0.45 1.50 1.60 1.70 0.90 1.00 1.10 0.50 BSC 1.00 BSC 0.30 0.38 0.43 4 0.08 0.10 A aaa C A2 bxN CAB 1 E/2 LxN 2 A1 C SEATING PLANE bbb b1xN bbb R0.125 CAB 2X R0.075 3 PLACES N e e1 D/2 NOTES: 1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). Land Pattern - SLP1610P4 P1 P DIMENSIONS DIM C G P P1 X X1 Y Y1 Z INCHES (.034) .007 .020 .039 .008 .016 .027 (.061) .061 MILLIMETERS (0.87) 0.19 0.50 1.00 0.20 0.40 0.68 (1.55) 1.55 Y Z (C) G (Y1) X X1 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. © 2010 Semtech Corp. 11 www.semtech.com RClamp0522PA RClamp0524PA PROTECTION PRODUCTS Outline Outline Drawing - SO-8 SLP2510P8 A D B PRELIMINARY DIM PIN 1 INDICATOR (LASER MARK) E A A1 A2 b b1 D E e L N aaa bbb A aaa C A2 R0.125 1 E/2 LxN 2 A1 b1xN bbb C SEATING PLANE DIMENSIONS INCHES MILLIMETERS MIN NOM MAX MIN NOM MAX .020 .023 .026 0.50 0.58 0.65 0.00 .001 .002 0.00 0.03 0.05 (.005) (0.13) .006 .008 .010 0.15 0.20 0.25 .014 .016 .018 0.35 0.40 0.45 .094 .098 .102 2.40 2.50 2.60 .035 .039 .043 0.90 1.00 1.10 0.50 BSC .020 BSC .012 .015 .017 0.30 0.38 0.425 8 8 .003 0.08 .004 0.10 CAB N e D/2 2X R0.075 7 PLACES bxN bbb CAB NOTES: 1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). Land Pattern - SLP2510P8 P1 P DIMENSIONS DIM C G P P1 X X1 Y Y1 Z INCHES (.034) .008 .020 .039 .008 .016 .027 (.061) .061 MILLIMETERS (0.875) 0.20 0.50 1.00 0.20 0.40 0.675 (1.55) 1.55 Y Z (C) G (Y1) X X1 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. © 2010 Semtech Corp. 12 www.semtech.com RClamp0522PA RClamp0524PA PROTECTION PRODUCTS Marking Codes RClamp0522PA RClamp0524PA PRELIMINARY PIN 1 INDICATOR YYWW = Date Code 0522P YYWW PIN 1 INDICATOR 0524P YYWW Tape and Reel Specification Pin 1 Location User Direction of feed Device Orientation in Tape Part Number RClamp0522PA RClamp0524PA Tape Width A0 1.30 +/-0.05 mm 1.23 +/-0.05 mm B0 1.75 +/-0.05 mm 2.70 +/-0.05 mm K0 0.70 +/-0.05 mm 0.70 +/-0.05 mm K (MAX) B, (Max) D D1 E F P P0 P2 T(MAX) W 8.0 mm + 0.3 mm - 0.1 mm 8 mm 4.2 mm 1.5 + 0.1 mm - 0.0 mm ) 0.5 mm ±0.05 1.750±.10 mm 3.5±0.05 mm 2.4 mm 4.0±0.1 mm 4.0±0.1 mm 2.0±0.05 mm 0.4 mm Contact Information Semtech Corporation Protection Products Division 200 Flynn Road, Camarillo, CA 93012 Phone: (805)498-2111 FAX (805)498-3804 © 2010 Semtech Corp. 13 www.semtech.com