Tamilarasu. S, P. Thirunavukkarasu, N. Sethupathi

Electromagnetic compatibility-electrostatic discharge tests for a utomotive

The international automotive ESD standard (ISO 10605: 2008) has significant differences from thecommercial ESD testing standard (IEC 61000‑ 4 ‑ 2). Differences include the Human Bo dy Model(HBM) used to simulate a person s electrical network and the utilization of significantly higherdischarge voltages, up to ±25kV air discharge. This article aims to examine the differences andconsider why they exist. The test methods will be explained and the similarities between theautomotive and commercial product standards also highlighted. A discussion will also be forwardedon why other non‑ automotive products might be improved if they were designed to meet theautomotive ESD standard and why this standard might be more appropriate in some non‑ automotivesituations than IEC 61000‑ 4‑ 2.

PDF

___

[1] CISPR- 25: 2008 - Limits and methods of measurement of radio disturbance characteristics for the protection of receivers used on board vehicles.
[2] ISO 7637: Electrical disturbance by conduction and coupling Part 1: Passenger car and light commercial vehicles with nominal 12V supply voltage electrical transient conduction along supply lines only. (1990) Part 2: Commercial vehicles with nominal 24V supply voltage electrical transient conduction along supply lines only.
[3] ISO 11452: Road vehicles electrical disturbances by narrowband radiated electromagnetic energy component test methods
[4] ISO 10605: Road vehicles electrical disturbances from electrostatic discharges
[5] OHara, M., Miller, P. and Wyatt, M., Sources of Variability in Semi- Anechoic Chamber Radiated Emissions Measurement , York EMC '99, 12- 13 July 1999
[6] Connor, F.R., Antennas, 2nd ed. , Arnold, London, 1989.
[7] Sander, K.F. and Reed, G.A.L., Transmission and Propagation of Electromagnetic Waves , Cambridge University Press, Cambridge.
[8] EIA/JEDEC Test Method C101, Field- Induced Charged- Device Model Test Method for Electrostatic Discharge Withstand Thresholds of Microelectronic Components, El ectronic Industries Association.
[9] IEC 61000- 4- 2 (1995- 01), Electromagnetic Compatibility (EMC) Part 4: Testing and Measurement Techniques Section 2: Electrostatic Discharge Immunity Test, International Electrotechnical Commission, Geneva, Switzerland, 1995.
[10] P.R. Bossard, R.G. Chemelli, and B. Unger, ESD Damage from Triboelectrically Charged IC Pins, Electrical Overstress/Electrostatic Discharge Symposium Proceedings , ESD Association, Rome, NY.