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| ITAxxB1 Bidirectional TransilTM array for data line protection Features High surge capability Transil array: IPP = 40 A (8/20 s) Peak pulse power: 300 W (8/20 s) Up to 5 bidirectional Transil functions Low clamping factor (VCL / VBR) at high current level Low leakage current ESD protection up to 15 kV Figure 1. I/O1 I/O2 I/O3 I/O4 SO-8 Functional diagram 1 2 3 4 8 GND 7 6 5 GND Complies with the following standards IEC 61000-4-2 level 4 - 15 kV (air discharge) - 8 kV (contact discharge) MIL STD 883G- Method 3015-7: class 3B - 25 kV (human body model) Applications Differential data transmission line protection, such as: RS-232 RS-423 RS-422 RS-485 Description Transil diode arrays provide high overvoltage protection by clamping action. Their instantaneous response to transient overvoltages makes them particularly suited to protect voltage sensitive devices such as MOS technology and low voltage supplied IC's. The ITA series combines high surge capability against energetic pulses with high voltage performance against ESD. TM: Transil is a trademark of STMicroelectronics November 2007 Rev 2 1/7 www.st.com 7 Characteristics ITAxxB1 1 Table 1. Symbol PPP IPP It Tj Tstg TL 2 Characteristics Absolute ratings (Tamb = 25 C) Parameter Peak pulse power (8/20 s)(1) Peak pulse current (8/20 s) Wire I t value 2 (1) (1) Value Tj initial = Tamb Tj initial = Tamb 300 40 0.6 125 -55 to +150 260 Unit W A A2s C C C Maximum operating junction temperature Storage temperature range Maximum lead temperature for soldering during 10 s at 5 mm for case 1. For surges greater than the specified maximum value, the I/O will first present a short-circuit and after an open circuit caused by the wire melting. Table 2. Symbol VRM VBR VCL IRM IPP T C Electrical characteristics (Tamb = 25 C) Parameter Stand-off voltage Breakdown voltage Clamping voltage Leakage current Peak pulse current Voltage temperature coefficient Capacitance VBR @ IR IRM max. mA 1 1 1 1 A 10 4 4 4 V 5 8 15 24 @ VRM VCL @ IPP VCL max. (1) I IPP IRM VRM VCL VBR V @ IPP T max. C max. (2) Order code min. (1) (1) 8/20 s 8/20 s V ITA6V5B1 ITA10B1 ITA18B1 ITA25B1 6.5 10 18 25 V 10 15 25 33 A 10 10 10 10 V 12 19 28 38 A 25 25 25 25 10-4/ C 4 8 9 12 pF 750 570 350 300 1. Betwenn I/O pin and ground. 2. Between two input pins at 0 V Bias, F = 1 MHz. 2/7 ITAxxB1 Characteristics Figure 2. Pulse waveform Figure 3. Typical peak pulse power versus exponential pulse duration PPP(W) %IPP 100 8 s 1E+04 Tj initial=25C ITA25B1 ITA18B1 1E+03 Pulse waveform 8/20 s 50 1E+02 ITA6V5B1 ITA10B1 0 20 s t 1E+01 1E-03 1E-02 tP(ms) expo 1E-01 1E+00 1E+01 1E+02 Figure 4. Clamping voltage versus peak pulse current (exponential waveform 8/20 s) Figure 5. Peak current IDC inducing open circuit of the wire for one input/output versus pulse duration (typical values) VCL(V) 1E+03 Tj initial=25C 1E+03 %IPP 100 50 IDC(A) Exponential waveform 1E+02 ITA25B1 ITA18B1 0 tr tp t 1E+02 1E+01 ITA6V5B1 ITA10B1 1E+01 1E+00 1E-01 1E+00 IPP(A) 1E+01 1E+02 1E+00 1E-02 1E-01 tP(ms) 1E+00 1E+01 Figure 6. Junction capacitance versus reverse applied voltage for one input/output (typical values) Figure 7. Relative variation of leakage current versus junction temperature C(pF) 1E+03 ITA6V5B1 Tj=25C F=1MHz IR(Tj) IR(Tj=25C) 5E+3 1E+3 VR=VRM ITA10B1 1E+2 ITA18B1 1E+1 1E+0 ITA25B1 Tj(C) 1E-1 0 25 50 75 100 125 150 1E+02 1E+02 1E+00 VR(V) 1E+01 3/7 Application information ITAxxB1 2 Application information This monolithic Transil Array is based on 6 unidirectional Transils with a common cathode and can be configurated to offer up to 5 bidirectional functions. This imposes a maximum differential voltage between 2 input pins (see Table 3). Table 3. Maximum differential voltages Maximum differential voltage between two input pins at 25 C 3.5 V 5.0 V 9.0 V 12.5 V Order code ITA6V5B1 ITA10B1 ITA18B1 ITA25B1 Figure 8. RS-232 junction (typical application) TX RX RTS CTS GND 3 Ordering information scheme Figure 9. Ordering information scheme ITA Integrated Transil Array Breakdown Voltage (min) 25 = 25 Volt Type of lines protected B = Bidirectional Package 1 = SO-8 Packaging RL = Tape & reel Blank = Tube 25 B 1 RL 4/7 ITAxxB1 Package information 4 Package information Epoxy meets UL94, V0 In order to meet environmental requirements, ST offers these devices in ECOPACK(R) packages. These packages have a lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com. Table 4. SO-8 dimensions Dimensions ccc C A2 e A Ref. Millimeters Min. Typ. Max. 1.75 0.1 1.25 0.28 0.17 4.80 5.80 3.80 0.25 0.40 1.04 0 8 0.10 0 4.90 6.00 3.90 1.27 0.50 1.27 0.010 0.016 0.48 0.23 5.00 6.20 4.00 0.25 0.004 0.049 0.011 0.007 Min. Inches Typ. Max. 0.069 0.010 0.019 0.009 b A1 A A1 A2 b C D E E1 e h C (Seating Plane) C h x 45 0.25mm (Gage Plane) L k L1 D 0.189 0.193 0.197 0.228 0.236 0.244 0.150 0.154 0.157 0.050 0.020 0.050 0.041 8 0.004 8 5 E1 E L L1 k ccc 1 4 Figure 10. SO-8 footprint (dimensions in mm) 6.7 0.54 4.03 1.27 1.335 5/7 Ordering Information ITAxxB1 5 Ordering Information Table 5. Ordering information Marking 6V5B1 6V5B1 10B1 18B1 18B1 25B1 25B1 SO-8 0.08 g Package Weight Base qty 2000 2500 2000 2000 2500 2000 2500 Delivery mode Ammopack Tape and reel Ammopack Ammopack Tape and reel Ammopack Tape and reel Order code ITA6V5B1 ITA6V5B1RL ITA10B1 ITA18B1 ITA18B1RL ITA25B1 ITA25B1RL 6 Revision history Table 6. Date 13-Dec-2004 15-Nov-2007 Document revision history Revision 1 2 First issue. Reformatted to current standards. SO-8 package dimensions update. Updated pulse waveform parameters in Figure 2. Description of changes 6/7 ITAxxB1 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. (c) 2007 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 - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com 7/7 |
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