SMS15C

SMS05C_04 SEMTECH | Alldatasheet

Document overview

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Technical content

1 www.semtech.com PROTECTION PRODUCTS SMS05C through SMS24C TVS Diode Array For ESD and Latch-Up Protection ‹ Transient protection for data lines to IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact) IEC 61000-4-4 (EFT) 40A (5/50ns) IEC 61000-4-5 (Lightning) 24A (8/20µs) ‹ Small package for use in portable electronics ‹ Protects five I/O lines ‹ Working voltages: 5V, 12V, 15V and 24V ‹ Low leakage current ‹ Low operating and clamping voltages ‹ Solid-state silicon avalanche technology Description Features Circuit Diagram Schematic & PIN Configuration Revision 08/11/04

Applications

Mechanical Characteristics The SMS series of TVS arrays are designed to protect sensitive electronics from damage or latch-up due to ESD and other voltage-induced transient events. Each device will protect up to five lines. They are available with operating voltages of 5V, 12V, 15V and 24V. They are unidirectional devices and may be used on lines where the signal polarities are above ground. TVS diodes are solid-state devices designed specifically for transient suppression. They feature large cross- sectional area junctions for conducting high transient currents. They offer desirable characteristics for board level protection including fast response time, low operating and clamping voltage and no device degrada- tion. The SMS series devices may be used to meet the immunity requirements of IEC 61000-4-2, level 4. The low cost SOT23-6L package makes them ideal for use in portable electronics such as cell phones, PDA’s, and notebook computers. SOT23-6L (Top View) ‹ EIAJ SOT23-6L package ‹ Molding compound flammability rating: UL 94V-0 ‹ Marking : Marking Code ‹ Packaging : Tape and Reel per EIA 481 ‹ Cell phone Handsets and Accessories ‹ Microprocessor Based Equipment ‹ Personal Digital Assistants (PDA’s) ‹ Notebooks, Desktops, and Servers ‹ Portable Instrumentation ‹ Set Top Box ‹ Peripherals ‹ MP3 Players ‹ Cordless Phones

2 2004 Semtech Corp. www.semtech.com PROTECTION PRODUCTS SMS05C through SMS24C Absolute Maximum Rating

Electrical Characteristics

t(rewoPesluPkaeP p )sµ02/8=P kp 003s ttaW I(egatloVdrawroFkaeP F t,A1= p )sµ02/8=V PF 5.1V erutarepmeTgniredloSdaeLT L ).ces01(062C ° erutarepmeTgnitarepOT J 521+ot55-C ° erutarepmeTegarotST GTS 051+ot55-C ° C50SMS retemaraPl obmySs noitidnoCm uminiMl acipyTm umixaMs tinU egatloVffO-dnatSesreveRV MWR 5V egatloVnwodkaerBesreveRV RB It Am1=6 V tnerruCegakaeLesreveRI R V MWR C°52=T,V5=0 2A µ egatloVgnipmalCV C I PP t,A5= p sµ02/8=8 .9V egatloVgnipmalCV C I PP t,A42= p sµ02/8=5 .41V tnerruCesluPkaePI PP tp sµ02/8=4 2A ecnaticapaCnoitcnuJC j dnasniPO/IneewteB dnuorG VR zHM1=f,V0= 5230 04F p C21SMS retemaraPl obmySs noitidnoCm uminiMl acipyTm umixaMs tinU egatloVffO-dnatSesreveRV MWR 21V egatloVnwodkaerBesreveRV RB It Am1=3 .31V tnerruCegakaeLesreveRI R V MWR C°52=T,V21=1 A µ egatloVgnipmalCV C I PP t,A5= p sµ02/8=9 1V egatloVgnipmalCV C I PP t,A51= p sµ02/8=3 2V tnerruCesluPkaePI PP tp sµ02/8=5 1A ecnaticapaCnoitcnuJC j dnasniPO/IneewteB dnuorG VR zHM1=f,V0= 5310 51F p

3 2004 Semtech Corp. www.semtech.com PROTECTION PRODUCTS SMS05C through SMS24C C51SMS retemaraPl obmySs noitidnoCm uminiMl acipyTm umixaMs tinU egatloVffO-dnatSesreveRV MWR 51V egatloVnwodkaerBesreveRV RB It Am1=7 .61V tnerruCegakaeLesreveRI R V MWR C°52=T,V51=1 A µ egatloVgnipmalCV C I PP t,A5= p sµ02/8=4 2V egatloVgnipmalCV C I PP t,A21= p sµ02/8=9 2V tnerruCesluPkaePI PP tp sµ02/8=2 1A ecnaticapaCnoitcnuJC j dnasniPO/IneewteB dnuorG VR zHM1=f,V0= 0015 21F p Electrical Characteristics (Continued) C42SMS retemaraPl obmySs noitidnoCm uminiMl acipyTm umixaMs tinU egatloVffO-dnatSesreveRV MWR 42V egatloVnwodkaerBesreveRV RB It Am1=7 .62V tnerruCegakaeLesreveRI R V MWR C°52=T,V42=1 A µ egatloVgnipmalCV C I PP t,A5= p sµ02/8=0 4V egatloVgnipmalCV C I PP t,A8= p sµ02/8=4 4V tnerruCesluPkaePI PP tp sµ02/8=8 A ecnaticapaCnoitcnuJC j dnasniPO/IneewteB dnuorG VR zHM1=f,V0= 065 7F p

4 2004 Semtech Corp. www.semtech.com PROTECTION PRODUCTS SMS05C through SMS24C Typical Characteristics Non-Repetitive Peak Pulse Power vs. Pulse Time Power Derating Curve 100 110 0 5 10 15 20 25 30 Time (µs) Percent of IPP e-t td = I PP /2 Wa v e f o r m Parameters: tr = 8µs td = 20µs Pulse Waveform Forward Voltage vs. Forward Current 100 110 0 25 50 75 100 125 150 Ambient Temperature - T A (oC) % of Rated Power or IPP 0 5 10 15 20 25 30 Peak Pulse Current - IPP (A) Clamping Voltage - VC (V) SMS12C SMS05C Waveform Parameters: tr = 8µs td = 20µs SMS15C SMS24C Clamping Voltage vs. Peak Pulse Current 0.5 1.5 2.5 3.5 4.5 0 5 10 15 20 25 30 35 40 45 Forward Current - IF (A) Forward Voltage - VF (V) Waveform Parameters: tr = 8µs td = 20µs 0.01 0.1 0.1 1 10 100 1000 Pulse Duration - tp (µs) Peak Pulse Power - Ppk (kW)

5 2004 Semtech Corp. www.semtech.com PROTECTION PRODUCTS SMS05C through SMS24C SMSxxC Circuit Diagram Protection of Five Unidirectional Lines Device Connection for Protection of Five Data Lines The SMSxxC is designed to protect up to five unidirec- tional data lines. The device is connected as follows: 1. Unidirectional protection of five I/O lines is achieved by connecting pins 1, 3, 4, 5 and 6 to the data lines. Pin 2 is connected to ground. The ground connection should be made directly to the ground plane for best results. The path length is kept as short as possible to reduce the effects of parasitic inductance in the board traces. Circuit Board Layout Recommendations for Suppres- sion of ESD. Good circuit board layout is critical for the suppression of ESD induced transients. The following guidelines are recommended: z Place the SMSxxC near the input terminals or connectors to restrict transient coupling. z Minimize the path length between the SMSxxC and the protected line. z Minimize all conductive loops including power and ground loops. z The ESD transient return path to ground should be kept as short as possible. z Never run critical signals near board edges. z Use ground planes whenever possible. Applications Information

6 2004 Semtech Corp. www.semtech.com PROTECTION PRODUCTS SMS05C through SMS24C Outline Drawing - SO-8 Land Pattern Outline Drawing .110 BSC .037 BSC DETAIL aaa C SEATING ccc C 2X N/2 TIPS 2X E/2 SEE DETAIL AA2 bxN A .008 N E .060 .114 .063 .118 .010 - A 0.20 1.60 3.00

2.80 BSC

0.95 BSC

.069 1.50 2.90 .020 0.25 1.75 0.50- EI L (L1) c 0.25 PLANE GAGE H 2.80.110 bbb C A-B D .008 .004 .012 .003 (.024) .018 .035 .000 .035 .045 0.10 0.20 10° 0° - 10° 1.15 (0.60) 0.45.024 .009 0.30 0.08 .057 .051 .006 0.00 .90 0.90 0.22 0.60 0.15 1.45 1.30 1.90 BSC.075 BSC A e1 D e B C H NOM INCHES DIMENSIONS aaa bbb ccc N DIM c e L E D b A MIN MILLIMETERS MAX MIN NOM MAX PLANE D DATUMS AND TO BE DETERMINED AT DATUM PLANE CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). DIMENSIONS "E1" AND "D" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS3. OR GATE BURRS. NOTES: 2. -A- -B- -H- SIDE VIEW THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY. CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET. NOTES: DIMENSIONS INCHES Y Z DIM G P X C MILLIMETERS .043 .141 .055 (.098) .037 .024 1.40 (2.50) 0.95 0.60 1.10 3.60 DIMENSIONS INCHES Y Z DIM G P X C MILLIMETERS P (C) Z Y G X

7 2004 Semtech Corp. www.semtech.com PROTECTION PRODUCTS SMS05C through SMS24C Note: (1) No suffix indicates tube pack.

Ordering Information

Note: Pin 1 Identified with a dot. rebmuNtraP gnikroW egatloV repytQ leeR eziSleeR CT.C50SMSb PnS0 00,3h cnI7 CT.C21SMSb PnS0 00,3h cnI7 CT.C51SMSb PnS0 00,3h cnI7 CT.C42SMSb PnS0 00,3h cnI7 TCT.C50SMSe erFbP0 00,3h cnI7 TCT.C21SMSe erFbP0 00,3h cnI7 TCT.C51SMSe erFbP0 00,3h cnI7 TCT.C42SMSe erFbP0 00,3h cnI7