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PESD3V3S1UL-315 Datasheet(PDF) 9 Page - NXP Semiconductors |
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PESD3V3S1UL-315 Datasheet(HTML) 9 Page - NXP Semiconductors |
9 / 15 page PESDXS1UL_SER All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved. Product data sheet Rev. 3 — 25 October 2011 9 of 15 NXP Semiconductors PESDxS1UL series Unidirectional ESD protection diodes 7. Application information The PESDxS1UL series is designed for protection of one unidirectional data line from the damage caused by ESD and surge pulses. The PESDxS1UL series may be used on lines where the signal polarities are either positive or negative with respect to ground. The PESDxS1UL series provides a surge capability of 150 W for an 8/20 s waveform. Circuit board layout and protection device placement Circuit board layout is critical for the suppression of ESD, Electrical Fast Transient (EFT) and surge transients. The following guidelines are recommended: 1. Place the PESDxS1UL as close to the input terminal or connector as possible. 2. The path length between the PESDxS1UL and the protected line should be minimized. 3. Keep parallel signal paths to a minimum. 4. Avoid running protected conductors in parallel with unprotected conductors. 5. Minimize all Printed-Circuit Board (PCB) conductive loops including power and ground loops. 6. Minimize the length of the transient return path to ground. 7. Avoid using shared transient return paths to a common ground point. 8. Ground planes should be used whenever possible. For multilayer PCBs, use ground vias. 8. Test information 8.1 Quality information This product has been qualified in accordance with the Automotive Electronics Council (AEC) standard Q101 - Stress test qualification for discrete semiconductors, and is suitable for use in automotive applications. Fig 10. Application diagram 006aaa681 ground line to be protected (positive signal polarity) PESDxS1UL unidirectional protection of one line ground line to be protected (negative signal polarity) PESDxS1UL |
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