Nexperia

PESD2CANFD24L-U

ESD protection for In-vehicle networks

10. Application information

The device is designed for the protection of two automotive in-vehicle bus lines, e.g. CAN (FD),

from the damage caused by ESD and surge pulses.

aaa-031991

CG

CAN BUS

TRANSCEIVER

CAN

bus

PESD2CANFDx

SPLIT

2

3

1

RT/2

RT/2

CANH

CANL

Common

mode choke

(optional)

Fig. 11. Typical application: ESD protection of two automotive CAN bus lines

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.

11. Test information

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.

PESD2CANFD24L-U

All information provided in this document is subject to legal disclaimers.

©

Nexperia B.V. 2021. All rights reserved

Product data sheet

2 October 2021

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