LCDP1521S Dual line programmable transient voltage suppressor for SLIC protection Datasheet - production data Description This device has been especially designed to protect 2 new high voltage, as well as classical SLICs, against transient overvoltages. Positive overvoltages are clamped by 2 diodes. Negative surges are suppressed by 2 thyristors, their breakdown voltage being referenced to -VBAT through the gate. Separated gates allow the SLICs to be supplied by two different voltages. Figure 1: Functional diagram SO-8 Line (TIP1 or RING1) Features 1 Dual line programmable transient voltage suppressor with separated gates Wide negative firing voltage range: VGn = -175 V max. Low dynamic switching voltages: VFP and VDGL Low gate triggering current: IGT = 5 mA max Peak pulse current: IPP = 40 A (5/310 μs) Holding current: IH = 150 mA min. 8 Gn1 2 7 GND 3 6 GND Gn2 Line (TIP2 or RING2) Benefits Line (RING1 or TIP1) 4 Line (RING2 or TIP2) 5 A Trisil™ is not subject to ageing and provides a fail safe mode in short circuit for a better protection. Trisils are used to help equipment to meet various standards such as UL1950, IEC 60950 / CSA C22.2, UL1459 and TIA-968-A (formerly FCC part 68). Trisils have UL94 V0 resin approved (Trisils are UL497B approved - file: E136224). February 2017 Doc16268 Rev 7 This is information on a product in full production. 1/13 www.st.com Characteristics 1 LCDP1521S Characteristics Table 1: Standards compliance Standard Peak surge voltage (V) Voltage waveform Required peak current (A) Current waveform Minimum serial resistor to meet standard ( Ω ) GR-1089 Core First level 2500 1000 2/10 μs 10/1000 μs 500 100 2/10 μs 10/1000 μs 20 30 GR-1089 Core Second level 5000 2/10 μs 500 2/10 μs 40 GR-1089 Core Intra-building 1500 2/10 μs 100 2/10 μs 0 ITU-T-K20/K21 6000 1500 10/700 μs 150 37.5 5/310 μs 110 0 ITU-T-K20 (IEC 61000-4-2) 8000 15000 1/60 ns IEC 61000-4-5 4000 4000 10/700 μs 1.2/50 μs 100 100 5/310 μs 8/20 μs 60 5 TIA-968-A, lightning surge type A 1500 800 10/160 μs 10/560 μs 100 200 10/160 μs 10/560 μs 26 19 TIA-968-A, lightning surge type B 1000 9/720 μs 25 5/320 μs 0 ESD contact discharge ESD air discharge 0 0 Table 2: Thermal resistances Symbol Rth(j-a) 2/13 Parameter Junction to ambient Doc16268 Rev 7 Value Unit 170 °C/W LCDP1521S Characteristics Table 3: Absolute ratings ((0 °C < Tj < 70 °C, unless otherwise specified)) Symbol Ipp Parameter Peak pulse current(1) Value Unit Telcordia GR-1089CORE Issue 6, May 2011, section 4 10/1000 µs 25 TIA-968-A, lightning surge type A 10/560 µs 30 ITU-T K20/21/44/45, (10/700 µs open circuit voltage waveshape) 5/310 µs 40 TIA-968-A, lightning surge type A 10/160 µs 45 IEC 61000-4-5, (1.2/50 µs open circuit waveshape) with 10 Ω 2/40 µs 85 ITU-T K20/21/44/45, (1.2/50 µs open circuit voltage waveshape) 8/20 µs 90 Telcordia GR-1089CORE Issue 6, (2/10 µs open circuit waveshape) 2/10 µs 100 t = 0.2 s t=1s t=2s t = 15 mn 5 3.5 3 1.3 A -40 °C < Tamb < +85 °C -175 V -55 to + 150 °C 260 °C ITSM Non repetitive surge peak on-state current (50 Hz sinusoidal)(1) VGN Negative battery voltage range Tstg Storage junction temperature range Tj Maximum operating junction temperature TL Maximum temperature for soldering during 10 s A Notes: (1)The rated current values may be applied either to the Ring to GND or to the Tip to GND terminal pairs. Additionally, the four terminal pairs may have their rated current values applied simultaneously (in this case the GND terminal current will be four times the rated current value of an individual terminal pair) Doc16268 Rev 7 3/13 Characteristics LCDP1521S Figure 2: Electrical characteristics (definitions) Figure 3: Pulse waveform 4/13 Doc16268 Rev 7 LCDP1521S Characteristics Table 4: Parameters (Tj = 25 °C unless otherwise specified) Symbol Test conditions Min. IGT VLINE = -48 V 0.05 IH VGn = -48 V 150 VGT at IGT IRG VRG = -175 V VRG = -175 V VDGL(1) Typ. VGn = -48 V, 10/700 μs, 1.5 kV, RS = 0 Ω, IPP = 37.5 A t = 500 μs IF = 1 A VFP 10/700 μs, 1.5 kV, RS = 0 Ω, IPP = 37.5 A IR VGn / LINE = -1 V, VLINE = -175 V VGn / LINE = -1 V, VLINE = -175 V C VLINE = -50 V, VRMS = 1 V, f = 1 MHz VLINE = -2 V, VRMS = 1 V, f = 1 MHz Unit 5 mA mA Tj = 25 °C Tj = 85 °C VF Max. Tj = 25 °C Tj = 85 °C 2.5 V 5 50 µA 5 V 2 V 8 V 5 50 µA 18 35 pF Notes: (1)The oscillations with a time duration lower than 50 ns are not taken into account. Table 5: Recommended gate capacitance Symbol CG Component Gate decoupling capacitance Doc16268 Rev 7 Min. Typ. Max. Unit 100 220 - nF 5/13 Technical information 2 LCDP1521S Technical information The LCDP1521S is particularly optimized for the new telecom applications such as the fiber in the loop, the WLL, the remote central office. In this case, the operating voltages are smaller than in the classical system. This makes the high voltage SLICs particularly suitable. The schematics of Figure 4: "Protection of high voltage SLICs" shows the topologies most frequently used for these applications. Figure 4: Protection of high voltage SLICs 6/13 Doc16268 Rev 7 LCDP1521S Technical information Figure 5: Surge peak current versus duration I TSM (A) 15 10 5 t(s) 0 1.E-02 1.E-01 1.E+00 1.E+01 1.E+02 1.E+03 Figure 6: Relative variation of holding current versus junction temperature 1.5 IH[Tj] / IH[Tj = 25 °C] 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 -40 TJ (°C) -30 -20 -10 0 10 20 30 Doc16268 Rev 7 40 50 60 70 80 7/13 Package information 3 LCDP1521S Package information In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK ® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. 3.1 SO-8 package information Figure 7: SO-8 package outline Table 6: SO-8 package mechanical data Dimensions Ref. Millimeters Min. Typ. A Max. Min. Typ. 1.75 0.25 Max. 0.069 A1 0.1 A2 1.25 b 0.31 0.51 0.012 0.020 c 0.10 0.25 0.004 0.010 D 4.80 4.90 5.00 0.189 0.193 0.197 E 5.80 6.00 6.20 0.228 0.236 0.244 E1 3.80 3.90 4.00 0.150 0.154 0.157 e 0.004 0.010 0.049 1.27 0.050 h 0.25 0.50 0.010 0.020 L 0.40 1.27 0.016 0.05 L1 k° ccc 8/13 Inches 0.041 1.04 0 8 0.10 Doc16268 Rev 7 0 8 0.004 LCDP1521S Package information Figure 8: Footprint recommendations, dimensions in mm (inches) Figure 10: Package orientation in reel Figure 9: Marking layout (refer to ordering information table for marking) Figure 11: Tape and reel orientation Figure 13: Inner box dimensions (mm) Figure 12: Reel dimensions (mm) Doc16268 Rev 7 9/13 Package information LCDP1521S Figure 14: Tape and reel outline Table 7: Tape and reel mechanical data Dimensions Ref. Min. Typ. Max. 3.9 4 4.1 P1 7.9 8 8.1 P2 1.95 2 2.05 ØD0 1.45 1.5 1.6 ØD1 1.6 F 5.45 5.5 5.55 K0 2.5 2.6 2.7 W 11.7 12 12.3 P0 10/13 Millimeters Doc16268 Rev 7 LCDP1521S Package information Figure 15: ST ECOPACK® recommended soldering reflow profile for PCB mounting Minimize air convection currents in the reflow oven to avoid component movement. Maximum soldering profile corresponds to the latest IPC/JEDEC JSTD-020. Doc16268 Rev 7 11/13 Ordering information 4 LCDP1521S Ordering information Figure 16: Ordering information scheme LCDP 15 2 1 S RL Line card dual protection Holding current 15 = 150 mA Version 2 = devices protected Pack age 1 = SO-8 Separated gates Packaging RL = Tape and reel Table 8: Ordering information 5 Order code Marking Package Weight Base qty. Delivery mode LCDP1521SRL DP152S SO-8 0.08 g 2500 Tape and reel Revision history Table 9: Document revision history 12/13 Date Revision Changes 24-Sep-2009 1 First issue. 23-Feb-2012 2 Standardized nomenclature for Gn and Gp. 20-May-2015 3 Updated Table 3 and package view. 02-Jul-2015 4 Updated package information. 08-Jul-2015 5 Updated Figure 7. 01-Oct-2016 6 Updated Section 6: "Characteristics" and Section 8.1: "SO-8 package information". Minor format changes. 09-Feb-2017 7 Updated Figure 7: "SO-8 package outline". Doc16268 Rev 7 LCDP1521S IMPORTANT NOTICE – PLEASE READ CAREFULLY STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products. No license, express or implied, to any intellectual property right is granted by ST herein. Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners. Information in this document supersedes and replaces information previously supplied in any prior versions of this document. © 2017 STMicroelectronics – All rights reserved Doc16268 Rev 7 13/13