uClamp3304A TM Clamp 4-Line ESD protection Array TM PPROTECTION PRODUCTS - MicroClampROTECTION PRODUCTS Features Description TM The Clamp series of TVS arrays are designed to pro- Transient protection for data lines to tect sensitive electronics from damage or latch-up due IEC 61000-4-2 (ESD) 15kV (air), 8kV (contact) to ESD. They are designed for use in applications where IEC 61000-4-4 (EFT) 40A (5/50ns) board space is at a premium. Each device requires less Protects four unidirectional I/O lines 2 than 2.9mm of PCB area and will protect up to four Ultra-small SC-89 package (1.7 x 1.7 x 0.6mm1.7 x 1.7 x 0.6mm1.7 x 1.7 x 0.6mm)1.7 x 1.7 x 0.6mm1.7 x 1.7 x 0.6mm lines. They are unidirectional devices and may be used 2 requires less than 2.9mm of PCB area on lines with positive signal polarities. Working voltage: 3.3V TM The clamp 3304A is constructed using Semtechs pro- Low leakage current prietary EPD process technology. The EPD process pro- Low operating and clamping voltages vides low standoff voltages with significant reductions in Solid-state silicon-avalanche technology leakage currents and capacitance over silicon-avalanche diode processes. They feature a true operating voltage Mechanical Characteristics of 3.3 volts for superior protection when compared to SC-89 (SOT-666) package traditional pn junction devices. Molding compound flammability rating: UL 94V-0 These devices may be used to meet the immunity re- Marking: Marking Code quirements of IEC 61000-4-2, level 4. They offer desir- Lead Finish: Matte Tin able characteristics for board level protection including RoHS Compliant fast response time, low operating and clamping voltage, Weight: 2.9mg (typical) and no device degradation. The small SC89 package Packaging: Tape and Reel per EIA 481 makes them ideal for use in portable electronics such as cell phones, PDAs, notebook computers, and digital cam- Applications eras. Cellular Handsets and Accessories Cordless Phones Notebooks and Handhelds Portable Instrumentation Digital Cameras Peripherals MP3 Players Dimensions Schematic & PIN Configuration 1.70 0.50 1.25 1.70 0.30 0.60 Maximum Dimensions (mm) SC-89 (Top View) www.semtech.com Revision 02/25/05 1Clamp3304A PROTECTION PRODUCTS Absolute Maximum Rating Rlating Seymbo Vsalu Unit PPeak Pulse Power (tp = 8/20s) 4s0 Watt pk M)aximum Peak Pulse Current (tIp = 8/20s 5sAmp pp ESD per IEC 61000-4-2 (Air) V +/- 20 kV PP ESD per IEC 61000-4-2 (Contact) +/- 15 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 3V.3 RWM PVunch-Through Voltage I=52A3V. PT PT SVnap-Back Voltage I=850mA2V. SB SB RIeverse Leakage Current V=53.3V 05.0 0A. R RWM CVlamping Voltage I=51A, tp = 8/20s 5V. C PP CVlamping Voltage I=05A, tp = 8/20s 8V. C PP RVeverse Clamping Voltage I=41A, tp = 8/20s 2V. CR PP I/O pin to Gnd 202 3Fp JCunction Capacitance V = 0V, f = 1MHz j R I/O pin to Gnd 1F4 p V = 3.3V, f = 1MHz R www.semtech.com 2005 Semtech Corp. 2