RClamp7534F. Low Capacitance TVS for LVDS Interfaces. PROTECTION PRODUCTS - RailClamp Description. Features. Mechanical Characteristics.

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1 - RailClamp Description RailClamp TVS diode arrays are 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 unique design incorporates surge rated, low capacitance steering diodes and a TVS diode in a single package. This allows the device to absorb large amounts of energy while protecting downstream components from harmful transient events. The RClamp7534F is in a 6-pin SC-70 package. The leads are finished with lead-free matte tin. They may be used to meet the ESD iunity requirements of IEC , Level 4 (5kV air, 8kV contact discharge). The combination of small size, low capacitance, and high ESD surge capability makes them ideal for use in applications such as next generation color LCD displays and LVDS interfaces. RClamp7534F Low Capacitance TVS for LVDS Interfaces Features Transient protection for high-speed data lines to IEC (ESD) ±5kV (air), ±8kV (contact) IEC (EFT) 40A (5/50ns) Array of surge rated diodes with internal TVS Diode Small package saves board space Protects up to four I/O lines Low capacitance (<3pF) for high-speed interfaces No insertion loss to 2.0GHz Low leakage current and clamping voltage Low operating voltage: 5.0V Solid-state silicon-avalanche technology Mechanical Characteristics EIAJ SC-70 6L package Pb-Free, Halogen Free, RoHS/WEEE Compliant Nominal Dimensions: 2.0 x.25 x. Lead Finish: Matte Sn Molding compound flaability rating: UL 94V-0 Marking : F75 Packaging : Tape and Reel Applications LVDS Interfaces LCD TV Circuit Diagram PIN Configuration BSC BSC Nominal Dimensions in Revision 5/5/200

2 Absolute Maximum Rating Rating Symbol Value Units Peak Pulse Power (tp = 2/0μs) Peak Pulse Current (V = 80V, R= 8 Ohms, tp = 2/0μs) P pk 00 3 Watts I PP 0 A ESD per IEC (Air) ESD per IEC (Contact) V ESD 5 8 kv Operating Temperature T J -55 to +25 C Storage Temperature T STG 55 to C Electrical Characteristics (T=25 o C) Parameter Symbol Conditions Minimum Typical Maximum Units Reverse Stand-Off Voltage V RWM Pin 5 to GND 5 V Reverse Breakdown Voltage V R B I t = ma Any I/O to GND V Reverse Leakage Current I R V RWM = 5V, T=25 C Any I/O to GND Forward Voltage V F I F = 00m A Any I/O pin to pin 5 GND to any I/O Clamping Voltage V C V = 80V, R= 8 Ohms, tp = 2/0μs Any I/O pin to GND Junction Capacitance C j V R = 0V, f = MHz Any I/O pin to GND V R = 0V, f = MHz Between I/O pins 3 μa.6 V 30 V.9 3 pf 0.80 pf Note : I/O pins are pin, 3, 4, and Semtech Corp. 2

3 Typical Characteristics Non-Repetitive Peak Pulse Power vs. Pulse Time Power Derating Curve Peak Pulse Power - P PP (kw) Pulse Duration - tp (us) Surge Current Output Waveform (tp = 2/0us) % of Rated Power or IPP Ambient Temperature - T A ( o C) Clamping Voltage vs. Peak Pulse Current (tp = 2/0us) Clamping Voltage - V C (V) Waveform Parameters: tr = 2µs td = 0µs Peak Pulse Current - IPP (A) ESD Clamping (8kV Contact per IEC ) Normalized Capacitance vs. Reverse Voltage.5.4 f = MHz C J (V R ) / C J (V R =0) Any I/O Pin to Ground Between any two I/O pins Note: Data is taken with a 0x attenuator Reverse Voltage - V R (V) 200 Semtech Corp. 3

4 Typical Characteristics Insertion Loss S2 (I/O to Gnd) Analog Crosstalk CH S2 LOG 6 db / REF 0 db : db 800 MHz CH S2 LOG 20 db/ REF 0 db 0 db -6 db -2 db -8 db -24 db : db 900 MHz 3: db.8 GHz 3: db 2.5 GHz 3: db 2.7 GHz -30 db -36 db MHz 0 MHz 00 MHz GHz 3 GHz START. 030 MHz STOP MHz START. 030 MHz STOP MHz 200 Semtech Corp. 4

5 Applications Information Device Connection Options for Protection of Four High-Speed Data Lines This device is designed to protect high-speed data lines. When the voltage on the protected line exceeds the breakdown voltage of the internal TVS diode, the steering diodes are forward biased, conducting the transient current away from the sensitive circuitry to ground. Data lines are connected at pins, 3, 4 and 6. Pin 2 should be connected directly to a ground plane. The path length is kept as short as possible to minimize parasitic inductance. An external 0 Ohm resistor can be added as shown. This helps restrict the flow of ESD current further enhancing the circuit protection capability of the device. When configured as shown, a LVDS chip may withstand up to 0A for a 2/0 us impulse waveform. Enhanced Protection of Four Data Lines 0 Ω I/O In To Protected IC I/O In 2 To Protected IC 0 Ω 0 Ω I/O In 3 To Protected IC I/O In 4 To Protected IC 0 Ω 200 Semtech Corp. 5

6 Applications Information - Spice Model Spice Model Spice Parameters Parameter IS BV VJ RS IBV CJO TT U nit D (LCRD) D 2 (LCRD) D3 (TVS) Amp E-20 E E- 2 Volt Volt Ohm Farad.5E-2.5E-2 2E- 2 Amp E-3 E-3 E-3 sec 2.54E E E- 9 M N EG ev Semtech Corp. 6

7 Outline Drawing - SC-70 E/2 ccc C 2X N/2 TIPS A N 2 B D e e E D E DIMENSIONS INCHES MILLIMETERS DIM MIN NOM MAX MIN NOM MAX A A A b c D E E.083 BSC 2.0 BSC e.026 BSC 0.65 BSC e BSC L L N (.07) 6 (0.42) aaa bbb ccc aaa C A2 A SEATING PLANE C A bxn bbb C A-B D GAGE PLANE H c SIDE VIEW SEE DETAIL A 0.5 DETAIL A L (L) 0 NOTES:. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). 2. DATUMS -A- AND -B- TO BE DETERMINED AT DATUM PLANE -H- 3. DIMENSIONS "E" AND "D" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. 4. REFERENCE JEDEC STD MO-203, VARIATION AB. Land Pattern - SC-70 C X Y G Z DIM C G P X Y Z DIMENSIONS INCHES MILLIMETERS (.073) (.85) P NOTES:. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY. CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET. 200 Semtech Corp. 7

8 Marking F75 Ordering Information Part Number RClamp7534F.TCT Lead Finish Qty per Reel Reel Size Matte Sn 3,000 7 Inch RailClamp and RClamp are marks of Semtech Corporation Tape and Reel Specification F75 F75 F75 F75 F75 F75 F75 F75 Device Orientation in Tape Pin in lower left A0 B0 K / / /-0.5 Tape Width B, (Max) D D E F K (MAX) P P0 P 2 T(MAX) W ) 0.5 ± ±.0 3.5± ±0. 4.0±0. 2.0± Contact Information Semtech Corporation Protection Products Division 200 Flynn Rd., Camarillo, CA 9302 Phone: (805)498-2 FAX (805) Semtech Corp. 8