SL05_04 SEMTECH | Alldatasheet
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Technical content
Features
Circuit Diagram Schematic & PIN Configuration Revision 09/23/04 The SL series of TVS arrays are designed to protect sensitive electronics from damage or latch-up due to ESD, lightning, and other voltage-induced transient events. They are available with operating voltages of 5V, 12V, 15V and 24V. TVS diodes are solid-state devices designed specifically for transient suppression. They offer desirable charac- teristics for board level protection including fast re- sponse time, low operating and clamping voltage, and no device degradation. The SL series devices feature a low capacitance, fast switching compensation diode in series with a standard TVS diode. This effectively reduces the overall capacitance of the device to less than 5pF making it an integrated, low capacitance solution for use on high-speed interfaces. The SL series devices may be used to meet the immu- nity requirements of IEC 61000-4-2, level 4.
Applications
Mechanical Characteristics High-Speed data lines Cellular handsets AND accessories Universal Serial Bus (USB) port protection Portable instrumentation LAN/WAN equipment Peripherals Transient protection for high-speed 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) 12A (8/20µs) Small package for use in portable electronics Two devices will protect one line Low capacitance for high-speed data lines Working voltages: 5V, 12V, 15V and 24V Solid-state silicon avalanche technology JEDEC SOT23 package Molding compound flammability rating: UL 94V-0 Marking : Marking Code Packaging : Tape and Reel per EIA 481 SOT23 Top View (N.C.)
Description
2 2004 Semtech Corp. www.semtech.com PROTECTION PRODUCTSPROTECTION PRODUCTS SL05 through SL24 Absolute Maximum Rating
Electrical Characteristics
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3 2004 Semtech Corp. www.semtech.com PROTECTION PRODUCTSPROTECTION PRODUCTS SL05 through SL24 Electrical Characteristics (Continued) 51LS 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 ,A1= tp sµ02/8= 42V egatloVgnipmalCV C I PP ,A5= tp sµ02/8= 03V tnerruCesluPkaePI PP tp sµ02/8=0 1A ecnaticapaCnoitcnuJC j 2ot1niP VR zHM1=f,V0= 5F p 42LS 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 ,A1= tp sµ02/8= 34V egatloVgnipmalCV C I PP ,A5= tp sµ02/8= 55V tnerruCesluPkaePI PP tp sµ02/8=5 A ecnaticapaCnoitcnuJC j 2ot1niP VR zHM1=f,V0= 5F p
4 2004 Semtech Corp. www.semtech.com PROTECTION PRODUCTSPROTECTION PRODUCTS SL05 through SL24 Typical Characteristics Non-Repetitive Peak Pulse Power vs. Pulse Time 100 110 0 25 50 75 100 125 150 Ambient Temperature - T A (oC) % of Rated Power or IPP Power Derating Curve Pulse Waveform 100 110 0 5 10 15 20 25 30 Time (µs) Percent of IPP e td = IPP/2 Waveform Parameters: tr = 8µs td = 20µs leveLt sriF kaeP tnerruC )A( kaeP tnerruC sn03ta )A( kaeP tnerruC sn06ta )A( tseT egatloV tcatnoC( )egrahcsiD )Vk( tseT egatloV riA( )egrahcsiD )Vk( 15 .748 2 2 25 184 4 4 35 .222 166 8 40 36 18 8 5 1 0.01 0.1 0.1 1 10 100 1000 Pulse Duration - tp (µs) Peak Pulse Power - Ppk (kW) IEC 61000-4-2 Discharge ParametersESD Pulse Waveform (Per IEC 61000-4-2)
5 2004 Semtech Corp. www.semtech.com PROTECTION PRODUCTSPROTECTION PRODUCTS SL05 through SL24 SL Connection Options Device Connection for Protection of One High-Speed Data Line The SL series devices are designed to protect high- speed data lines. The SLxx utilizes a low capacitance compensation diode in series with, but in opposite polarity to a TVS diode in each line to achieve an effective capacitance of less than 5pF per device. During a transient event, the internal rectifier must be forward biased (TVS is reversed biased). Therefore, each device will only suppress transient events in one polarity. To achieve protection in both positive and negative polarity, a second device is connected in anti- parallel to the first. On unidirectional lines, a fast switching steering diode may be used as an alternative to using two SL devices. The options for connecting the devices are as follows: zzzzz Low capacitance protection of one high-speed line: Protection of one unidirectional or bidirec- tional high-speed line is achieved by connecting two devices in anti-parallel. Pin 1 of the first device is connected to the line and pin 2 is connected to ground (or to a second line for differential protec- tion). Pin 2 of the second device is connected to line 1 and pin 1 is connected to ground (or line 2) as shown. Pin 3 is not connected. During positive duration transients, the first device will conduct from pin 1 to 2. The steering diode conducts in the forward direction while the TVS will avalanche and conduct in the reverse direction. During negative transients, the second device will conduct in the same manner. For optimum protection, the ground connections 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. The path length between the TVS and the protected line should also be minimized. zzzzz Connection Option for Unidirectional Lines Only: An optional method for protecting unidirectional (normal signal polarities above ground) lines is to add a fast switching steering diode in parallel to the SL TVS. Input/outputs are connected to pin 1 of the SL device and the cathode of the rectifier. The anode of the diode and pin 2 of the SL TVS are connected to ground. Two Devices : Bidirectional or Unidirectional Line One Devices with Steering Diode : Unidirectional Line I/O Line Protection Applications Information Matte Tin Lead Finish Matte tin has become the industry standard lead-free replacement for SnPb lead finishes. A matte tin finish is composed of 100% tin solder with large grains. Since the solder volume on the leads is small com- pared to the solder paste volume that is placed on the land pattern of the PCB, the reflow profile will be determined by the requirements of the solder paste. Therefore, these devices are compatible with both lead-free and SnPb assembly techniques. In addition, unlike other lead-free compositions, matte tin does not have any added alloys that can cause degradation of the solder joint.
6 2004 Semtech Corp. www.semtech.com PROTECTION PRODUCTSPROTECTION PRODUCTS SL05 through SL24 Outline Drawing - SOT23 3L Land Pattern - SOT23 3L e D E1 E bxN A2A 3X A bbb C A B B C SEATING PLANE aaa C 1.401.20 N3 3 0 - 8°0°8°0° - .055.047 bbb .008 0.20 aaa .004 0.10 INCHES .114 E D b e c .012 .003 .082 DIM A MIN .000 .035 0.51 0.18 2.64 0.30 0.08 2.10 .022 .075 .093 .020 .007 .104 (0.55)
1.90 BSC
2.37 2.90 MILLIMETERS MAX 0.10 1.12 MIN DIMENSIONS 0.01 MAXNOM - .004 .044 NOM 0.89 3.042.80.110 .120 e1 .037 0.95 BSC E1 .051 1.30 SEE DETAIL ASIDE VIEW DATUMS AND TO BE DETERMINED AT DATUM PLANE-A- -B-2. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). NOTES: OR GATE BURRS. DIMENSIONS "E1" AND "D" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS3. -H- H DETAIL A 0.25C SEATING PLANE GAUGE PLANE 0 c L REFERENCE IPC-SM-782A.2. E .037 0.95 Y Y GZ C E X E1 .075 1.90 NOTES: 1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET. DIM Y Z G X C MILLIMETERSINCHES (2.20) .055 .141 .039 .031 (.087) 1.40 3.60 1.00 0.80 DIMENSIONS
7 2004 Semtech Corp. www.semtech.com PROTECTION PRODUCTSPROTECTION PRODUCTS SL05 through SL24 Contact Information Semtech Corporation Protection Products Division
200 Flynn Road, Camarillo, CA 93012
Phone: (805)498-2111 FAX (805)498-3804
Ordering Information
hsiniF leeRrepytQe ziSleeR CT.50LSb PnS0 00,3h cnI7 CT.21LSb PnS0 00,3h cnI7 CT.51LSb PnS0 00,3h cnI7 CT.42LSb PnS0 00,3h cnI7 TCT.50LSe erFbP0 00,3h cnI7 TCT.21LSe erFbP0 00,3h cnI7 TCT.51LSe erFbP0 00,3h cnI7 TCT.42LSe erFbP0 00,3h cnI7 Marking Codes rebmuNtraP gnikraM edoC 50LS5 0L 21LS2 1L 51LS5 1L 42LS4 2L