Nexperia
PESD2IVN27-U
ESD protection for In-vehicle networks
PESD2IVN27-U All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet 29 December 2017 7 / 12
10. Application information
The PESD2IVN27-U is designed for the protection of two automotive IVN bus line from the damage
caused by ESD and surge pulses.
006aaa473
C
G
CAN BUS
TRANSCEIVER
CAN
bus
PESD2IVNx
SPLIT
2
3
1
R
T/2
R
T/2
CANH
CANL
Common
mode choke
(optional)
Fig. 12. Typical application: ESD protection of two automotive CAN 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 device as close to the input terminal or connector as possible.
2. Minimize the path length between the device and the protected line.
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. Use ground planes whenever possible. For multilayer PCBs, use ground vias.
