PESD1LIN Datasheet, PDF (7/12 Pages) NXP Semiconductors – LIN bus ESD protection diode in SOD323

Philips Semiconductors
PESD1LIN
LIN bus ESD protection diode in SOD323
7. Application information
The PESD1LIN is designed for protection of one LIN bus signal line from the damage
caused by ElectroStatic Discharge (ESD) and surge pulses. The PESD1LIN provides a
surge capability of up to 160 W per line for a 8/20 µs waveform.
line to be protected
24 V
PESD 1 LIN
15 V
ground
006aaa167
Fig 6. Typical application: ESD protection of one automotive LIN bus line.
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 protection device as close to the input terminal or connector as possible.
2. The path length between the protection device and the protected line should be
minimized.
3. Keep parallel signal paths to a minimum.
4. Avoid running protection conductors in parallel with unprotected conductor.
5. Minimize all printed-circuit board 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 printed-circuit
boards, use ground vias.
9397 750 14032
Product data sheet
Rev. 01 — 26 October 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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