SM6TY

SM6TY Automotive 600 W Transil™ Features ■ peak pulse power: – 600 W (10/1000 µs) – 4 kW (8/20 µs) stand-off voltage range: from 6.4 V to 58 V unidirectional and bidirectional types low leakage current: – 0.2 µA at 25 °C – 1 µA at 85 °C operating Tj max: 150 °C high power capability at Tj max: – 515 W (10/1000 µs) JEDEC registered package outline resin meets UL 94, V0 ECOPACK®2 compliant components AEC-Q101 qualified K A ■ ■ ■ Unidirectional Bidirectional SMB (JEDEC DO-214AA) ■ ■ ■ ■ ■ ■ Description The SM6TY Transil series has been designed to protect sensitive automotive circuits against surges defined in ISO 7637-2 and against electrostatic discharges according to IEC 61000-4-2 and ISO 10605. The planar technology makes this device compatible with high-end circuits where low leakage current and high junction temperature are required to provide reliability and stability over time. SM6TY are packaged in SMB (SMB footprint in accordance with IPC 7531 standard). Complies with the following standards ■ IEC 61000-4-2 level 4: – 15 kV (air discharge) – 8 kV (contact discharge) ISO 10605, C = 330 pF, R = 330 Ω: – 15 kV (air discharge) – 8 kV (contact discharge) ISO 7637-2 (for pulse 1 and 2a, applicable only to parts with stand-off voltage (VRM) lower than the average battery voltage: 13.5 V): – Pulse 1: VS = -100 V – Pulse 2a: VS = +50 V – Pulse 3a: VS = -150 V – Pulse 3b: VS = +100 V ■ ■ TM: Transil is a trademark of STMicroelectronics September 2010 Doc ID 17741 Rev 1 1/11 www.st.com 11 Characteristics SM6TY 1 Table 1. Symbol Characteristics Absolute maximum ratings (Tamb = 25 °C) Parameter ISO 10605 (C = 330 pF, R = 330 Ω) Contact discharge Air discharge IEC 61000-4-2 Contact discharge Air discharge Tj initial = Tamb Value Unit VPP Peak pulse voltage 30 30 30 30 600 -55 to 150 -65 to 150 260 kV PPP Tj Tstg TL Peak pulse power dissipation(1) Operating junction temperature range Storage temperature range W °C Maximum lead temperature for soldering during 10 s. 1. For a surge greater than the maximum values, the diode will fail in short-circuit. Table 2. Symbol Rth(j-l) Rth(j-a) Thermal resistance Parameter Junction to leads Junction to ambient on printed circuit on recommended pad layout Value 20 100 Unit °C/W °C/W Figure 1. Electrical characteristics - definitions I I IPP Symbol VRM VBR VCL IRM IPP αT VF RD Parameter Stand-off voltage Breakdown voltage Clamping voltage Leakage current @ VRM Peak pulse current Voltage temperature coefficient Forward voltage drop Dynamic resistance Unidirectional IF VCL VBR VRM IRM IR VF V VCLVBR VRM IR IRM IRM IR V VRMVBR VCL IPP IPP Bidirectional Figure 2. Pulse definition for electrical characteristics Repetitive pulse current tr = rise time (µs) tp = pulse duration time (µs) tr tp 2/11 Doc ID 17741 Rev 1 SM6TY Table 3. Characteristics Electrical characteristics, typical values unless otherwise stated (Tamb = 25 °C) IRM max@VRM VBR @IR (1) min. typ. V 50 1 1 1 1 1 1 1 1 1 1 1 6.4 V 7.13 7.5 18 22 24 27 30 33 36 39 42.1 mA 10 1 1 1 1 1 1 1 1 1 1 1 VCL @IPP 10/1000 µs max. V(3) 11.3 25.2 30.6 33.2 37.5 41.5 45.7 49.9 53.9 58.1 64.5 92 A(4) 53 24 20 18 16 14.5 13.1 12 11.1 10.3 9.7 6.5 Ω 0.065 0.263 0.375 0.444 0.569 0.690 0.840 1.01 1.16 1.35 1.59 3.17 RD (2) 10/1000 µs VCL @IPP RD (2) 8/20 µs 8/20 µs max. V(3) A(4) Ω 0.024 0.111 0.159 0.189 0.240 0.293 0.357 0.427 0.504 0.611 0.728 1.503 αT max. 10-4/ °C 6.1 8.8 9.2 9.4 9.6 9.7 9.8 9.9 10.0 10.0 10.1 10.4 Order code 25 °C 85 °C µA SM6T7V5AY SM6T18AY/CAY SM6T22AY/CAY SM6T24AY/CAY SM6T27AY/CAY SM6T30AY/CAY SM6T33AY/CAY SM6T36AY/CAY SM6T39AY/CAY SM6T42CAY SM6T47AY/CAY SM6T68AY/CAY 20 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 14.5 276 32.5 123 39.3 102 42.8 48.3 53.5 59.0 64.3 69.7 76 84 121 93 83 75 68 62 57 52 48 33 15.3 17.1 18.8 20.9 20.5 22.8 23.1 25.7 25.6 28.5 28.2 31.4 30.8 34.2 33.3 37.1 36 40 40 44.4 46.7 68 58.1 64.6 1. Pulse test : tp < 50 ms 2. To calculate maximum clamping voltage at another surge level, use the following formula: VCLmax = VCL - RD x (IPP - IPPappli) where IPPappli is the surge current in the application. 3. To calculate VBR or VCL versus junction temperature, use the following formulas: VBR @ TJ = VBR @ 25°C x (1 + αT x (TJ - 25)) VCL @ TJ = VCL @ 25°C x (1 + αT x (TJ - 25)) 4. Surge capability given for both directions for unidirectional and bidirectional types. Figure 3. Peak power dissipation versus initial junction temperature (typical values) Figure 4. Peak pulse power versus exponential pulse duration Ppp (W) 700 10/1000 µs 600 500 10.0 100.0 PPP(kW) Tj initial = 25 °C 400 300 1.0 200 100 Tj(°C) 0 0 25 50 75 100 125 150 175 0.1 1.0E-03 1.0E-02 1.0E-01 1.0E+00 1.0E+01 tP(ms) Doc ID 17741 Rev 1 3/11 Characteristics Figure 5. SM6TY Clamping voltage versus peak pulse current exponential waveform (maximum values) IPP(A) Tj initial = 25 °C 100.0 8/20 µs 10.0 10/1000 µs 10 ms 1.0 SM6T30A SM6T68A VCL(V) 1000 0.1 10 100 Figure 6. 10 0 -10 -20 -30 -40 -50 ISO 7637-2 pulse 1 response (VS = -100 V) Voltage (V) SM6T36AY SM6T36CAY Current (A) 0 -2 -4 -6 -8 -10 -12 0.0 1.0 2.0 3.0 Time (ms) 4.0 4/11 Doc ID 17741 Rev 1 SM6TY Figure 7. ISO 7637-2 pulse 2a response (VS = 50 V) Voltage (V) 50 40 30 20 10 0 Current (A) SM6T36AY SM6T36CAY Note: Curves superimposed Characteristics 12 10 8 6 4 2 0 Time (µs) 0 20 30 40 50 60 70 80 90 100 Figure 8. ISO 7637-2 pulse 3a response (VS = -150 V) 20 Voltage (V) 10 0 -10 -20 -30 -40 -50 0.5 0 -0.5 -1.0 -1.5 -2.0 -2.5 -3.0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 Time (µs) 1.6 Current (A) SM6T36AY SM6T36CAY Doc ID 17741 Rev 1 5/11 Characteristics Figure 9. ISO 7637-2 pulse 3b response (VS = 100 V) Voltage (V) SM6TY 60 50 40 30 20 10 0 Current (A) 3.0 2.5 2.0 1.5 1.0 0.5 0 0 0.2 0.4 0.6 0.8 1.0 SM6T36AY SM6T36CAY Note: Curves superimposed Time (µs) 1.2 1.4 1.6 Note: ISO7637-2 pulses responses are not applicable for products with a stand off voltage lower than the average battery voltage (13.5 V). Figure 10. Junction capacitance versus reverse Figure 11. Junction capacitance versus applied voltage for unidirectional reverse applied voltage for types (typical values) bidirectional types (typical values) 1000 C(pF) F = 1 Mhz Vosc = 30 mVRMS Tj = 25 °C SM6T30AY 1000 C(pF) SM6T30CAY F=1 MHz Vosc =30 mVRMS Tj=25 °C 100 SM6T68AY SM6T68CAY 100 10 1 10 VR(V) 100 10 VR(V) 1 10 100 6/11 Doc ID 17741 Rev 1 SM6TY Characteristics Figure 12. Relative variation of thermal impedance, junction to ambient, versus pulse duration 1.00 Figure 13. Thermal resistance junction to ambient versus copper surface under each lead Rth(j-a) (°C/W) 110 100 90 80 70 Zth (j-a)/Rth (j-a) Recommended pad layout Printed circuit board FR4, copper thickness = 35 µm Printed circuit board FR4, copper thickness = 35 µm 0.10 60 50 40 30 20 tp ms 0.01 1.0E-03 1.0E-02 1.0E-01 1.0E+00 1.0E+01 1.0E+02 1.0E+03 10 0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 SCu(cm²) 4.5 5.0 Figure 14. Leakage current versus junction temperature (typical values) IR (nA) 1.E+03 VR=VRM VRM < 10 V Figure 15. Peak forward voltage drop versus peak forward current (typical values) 1.0E+02 IFM(A) 1.E+02 1.0E+01 Tj =125 °C Tj =25 °C 1.E+01 1.0E+00 1.E+00 VR=VRM VRM ≥ 10 V 1.0E-01 Tj (° C) 1.E-01 25 50 75 100 125 150 VFM(V) 1.0E-02 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Doc ID 17741 Rev 1 7/11 Application and design guidelines SM6TY 2 Application and design guidelines More information is available in the ST Application note AN2689 “Protection of automotive electronics from electrical hazards, guidelines for design and component selection”. 3 Ordering information scheme Figure 16. Ordering information scheme SM 6 T XX CA Y Surface mount Peak pulse power 6 = 600 W Transil in SMB Breakdown voltage 30 = 30 V Types CA = Bidirectional A = Unidirectional Automotive grade 8/11 Doc ID 17741 Rev 1 SM6TY Packaging information 4 Packaging information ● ● ● ● ● Case: JEDEC DO-214AA molded plastic over planar junction Terminals: solder plated, solderable as per MIL-STD-750, Method 2026 Polarity: for unidirectional types the band indicates cathode Flammability: epoxy meets UL 94, V0 RoHS package 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. Table 4. SMB dimensions Dimensions E1 Ref. Millimeters Min. Max. 2.45 0.20 2.20 0.40 3.95 5.60 4.60 1.50 Inches Min. 0.075 0.002 0.077 0.006 0.130 0.201 0.159 0.030 Max. 0.096 0.008 0.087 0.016 0.156 0.220 0.181 0.059 D A1 A2 b 1.90 0.05 1.95 0.15 3.30 5.10 4.05 0.75 E c A1 C A2 L b D E E1 L Figure 17. SMB footprint dimensions in mm (inches) Figure 18. Marking layout(1) 1.62 2.60 (0.064) (0.102) 1.62 (0.064) 2.18 (0.086) Cathode bar (unidirectional devices only ) 5.84 (0.300) xxx z y ww ECOPACK compliance XXX: Marking Z: Manufacturing location Y: Year WW: Week 1. Marking layout can vary according to assembly location. Doc ID 17741 Rev 1 9/11 Ordering information Table 5. Marking Order code SM6T7V5AY SM6T18AY SM6T22AY SM6T24AY SM6T27AY SM6T30AY SM6T33AY SM6T36AY SM6T39AY SM6T47AY SM6T68AY Marking DGY EEY EKY EMY EPY ERY ETY EVY EXY FAY FQY SM6T18CAY SM6T22CAY SM6T24CAY SM6T27CAY SM6T30CAY SM6T33CAY SM6T36CAY SM6T39CAY SM6T42CAY SM6T47CAY SM6T68CAY Order code SM6TY Marking MEY MKY MMY MPY MRY MTY MVY MXY NAY NBY NQY 5 Ordering information Table 6. Ordering information Marking Package SMB Weight 0.11 g Base qty Delivery mode 2500 Tape and reel Order code SM6TxxxAy/CAy(1) See Table 5 on page 10 1. Where xxx is nominal value of VBR and A or CA indicates unidirectional or bidirectional version. See Table 3 for list of available devices and their order codes 6 Revision history Table 7. Date 15-Sep-2010 Document revision history Revision 1 Initial release. Changes 10/11 Doc ID 17741 Rev 1 SM6TY Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein. UNLESS OTHERWISE SET FORTH IN ST’S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE, ST PRODUCTS ARE NOT RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY, DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER’S OWN RISK. Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any liability of ST. ST and the ST logo are trademarks or registered trademarks of ST in various countries. Information in this document supersedes and replaces all information previously supplied. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners. © 2010 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com Doc ID 17741 Rev 1 11/11