RClamp0544T RailClamp Ultra Low Capacitance TVS Arrays PROTECTION PRODUCTS PRELIMINARY PROTECTION PRODUCTS - RailClamp Features Description RailClamps are ultra low capacitance TVS arrays ESD protection for high-speed data lines to designed to protect high speed data interfaces. This IEC 61000-4-2 (ESD) 18kV (air), 12kV (contact) series has been specifically designed to protect sensitive IEC 61000-4-5 (Lightning) 5A (8/20 s) components which are connected to high-speed data IEC 61000-4-4 (EFT) 40A (5/50ns) and transmission lines from overvoltage caused by ESD Package design optimized for high speed lines (electrostatic discharge), CDE (Cable Discharge Events), Flow-Through design and EFT (electrical fast transients). Protects four I/O lines The RClamp 0544T has a typical capacitance of only Low capacitance: 0.3pF typical (I/O to I/O) 0.30pF between I/O pins. This allows it to be used on Low clamping voltage circuits operating in excess of 3GHz without signal Low operating voltage: 5V attenuation. They may be used to meet the ESD Solid-state silicon-avalanche technology immunity requirements of IEC 61000-4-2. Each device Mechanical Characteristics is designed to protect four lines (two differential pairs). The RClamp0544T is in an 8-pin SLP2010P8T package. SLP2010P8T 8-pin package (2.0 x 1.0 x 0.4mm) It measures 2.0 x 1.0 x 0.4mm. The leads are spaced at Pb-Free, Halogen Free, RoHS/WEEE Compliant a pitch of 0.4mm and are finished with lead-free NiPdAu. Lead Pitch: 0.4mm They are designed for easy PCB layout by allowing the Lead finish: NiPdAu traces to run straight through the device. The combina- Marking: Marking code + date code tion of small size, low capacitance, and high level of ESD Packaging: Tape and Reel protection makes them a flexible solution for applica- tions such as mini HDMI, MDDI, USB, and eSATA inter- Applications faces. Cell Phones and Accessories HDMI MDDI Ports USB 3.0 LVDS eSATA PCI Express Dimensions Circuit Diagram 2.00 12 GND34 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 www.semtech.com Revision 2/25/2011 1RClamp0544T PROTECTION PRODUCTS PRELIMINARY Absolute Maximum Rating Rlating Seymbo Vsalu Unit PPeak Pulse Power (tp = 8/20s) 7s5 Watt pk PIeak Pulse Current (tp = 8/20s) 5A PP ESD per IEC 61000-4-2 (Air) V +/- 18 kV ESD ESD per IEC 61000-4-2 (Contact) +/- 12 OTperating Temperature -C55 to +125 J STtorage Temperature -C55 to +150 STG o Electrical Characteristics (T=25 C) Plarameter SsymboCmondition MlinimuTmypicaMsaximu Unit RVeverse Stand-Off VoltageP5in 1, 2, 3, or 4 to GND V RWM RVeverse Breakdown Voltage I = 1mA, 68.5 1V1 BR t Pin 1, 2, 3, or 4 to GND RIeverse Leakage Current V = 5.0V, 00.005 0A.10 R RWM Pin 1, 2, 3, or 4 to GND CVlamping Voltage I = 1A, tp = 8/20s 1V2 C PP Pin 1, 2, 3, or 4 to GND CVlamping Voltage I = 5A, tp = 8/20s 1V5 C PP Pin 1, 2, 3, or 4 to GND JCunction Capacitance V = 0V, f = 1MHz, 00.45 0F.6 p j R Pin 1, 2, 3, or 4 to GND V = 0V, f = 1MHz, 04.3 0F. p R Between I/O pins www.semtech.com 2011 Semtech Corp. 2