RClamp0508M RailClamp Low Capacitance TVS Diode Array PROTECTION PRODUCTS - RailClamp Features Description RailClamps are surge rated diode arrays designed to ESD protection for high-speed data lines to protect high speed data interfaces. The RClamp series IEC 61000-4-2 (ESD) 15kV (air), 8kV (contact) has been specifically designed to protect sensitive IEC 61000-4-4 (EFT) 40A (5/50ns) components which are connected to data and trans- IEC 61000-4-5 (Lightning) 12A (8/20s) mission lines from overvoltage caused by ESD (electro- Array of surge rated diodes with internal TVS static discharge), CDE (cable discharge events), EFT Small package saves board space (electrical fast transients), and lightning. Protects eight I/O lines operating up to 1GHz1GHz1GHz1GHz1GHz The unique design of these devices incorporates surge Low capacitance: 3pF typical rated, low capacitance steering diodes and a TVS Low clamping voltage diode in a single package. During transient conditions, Low operating voltage: 5.0V the steering diodes direct the transient to either the Solid-state silicon-avalanche technology positive side of the power supply line or to ground. The internal TVS diode prevents over-voltage on the power Mechanical Characteristics line, protecting any downstream components. JEDEC MSOP-10L package TM The RClamp 0508M has a low typical capacitance of Molding compound flammability rating: UL 94V-0 3pF and may be used on lines operating up to 1GHz. Marking : Marking code and date code This makes the device ideal for protection of high- Packaging : Tape and Reel per EIA 481 speed data lines such as USB 2.0, Firewire, DVI, and Lead Finish: Matte Tin gigabit Ethernet interfaces. The low capacitance array configuration allows the user Applications to protect eight high-speed data or transmission lines. USB 2.0 Power & Data Line Protection The low inductance construction minimizes voltage Video Graphics Cards overshoot during high current surges. They may be Monitors and Flat Panel Displays used to meet the ESD immunity requirements of IEC Digital Video Interface (DVI) 61000-4-2, Level 4 (15kV air, 8kV contact discharge). High Definition Multi-Media Interface (HDMI) 10/100/1000 Ethernet ATM Interfaces IEEE 1394 Firewire Ports Circuit Diagram PIN Configuration 3 1 Line 8 Line 1 Line 2 Line 7 Vcc Line 6 12 4 5 78 9 10 Line 3 Line 5 Line 4 GND 6 MSOP-10L (Top View) www.semtech.com Revision 01/18/2008 1RClamp0508M PROTECTION PRODUCTS Absolute Maximum Rating Rlating Seymbo Vsalu Unit PPeak Pulse Power (tp = 8/20s) 3s00 Watt pk PIeak Pulse Current (tp = 8/20s) 1A2 PP ESD per IEC 61000-4-2 (Air) V 15 kV ESD ESD per IEC 61000-4-2 (Contact) 8 LTead Soldering Temperature 2C60 (10 sec.) L 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 Voltage P5in 3 to 6 V RWM RVeverse Breakdown Voltage I = 1mA6V BR t Pin 3 to 6 RIeverse Leakage Current V = 5V, T=25C 5A R RWM Pin 3 to 6 FVorward Voltage I=215mA 1V. f f CVlamping Voltage I = 1A, tp = 8/20s 1V2.5 C PP Any I/O pin to Ground CVlamping Voltage I = 5A, tp = 8/20s 1V7.5 C PP Any I/O pin to Ground CVlamping Voltage I = 12A, tp = 8/20s 2V5 C PP Any I/O pin to Ground JCunction Capacitance V = 0V, f = 1MHz 35 pF j R Any I/O pin to Ground V = 0V, f = 1MHz 1F.5 p R Between I/O pins www.semtech.com 2008 Semtech Corp. 2