Connector
This section contains information on the device connectors.
Table of Contents
Pinout
The CANedge uses two D-sub9 connectors for supply, 2 x CAN, 2 x LIN, and 5 V output.
Pin # |
Channel 1 (CH1) |
Channel 2 (CH2) |
---|---|---|
1 |
NC |
5 V Supply Output |
2 |
CAN 1 L |
CAN 2 L |
3 |
GND |
GND |
4 |
LIN Data 1 |
LIN Data 2 |
5 |
NC |
NC |
6 |
GND (optional) |
GND (optional) |
7 |
CAN 1 H |
CAN 2 H |
8 |
NC |
NC |
9 |
Supply & LIN1 VBAT |
LIN2 VBAT |
Supply
The supply (CH1 pin 9) is used to power the device. The supply is internally protected against reverse polarity and low-energy voltage spikes.
Refer to the Electrical Specification for more details on the device supply.
Warning
The supply line must be protected against high-energy voltage events exceeding device limits
GND
All GND (ground) pins are connected internally.
5 V Supply Output
The +5 V output can be used to power external devices. The power can be toggled via the device configuration. Refer to the Electrical Specification for more details on the 5 V output.
Danger
Connecting external input power to this pin can permanently damage the device
Warning
External protection (such as clamping diodes) must be installed if inductive loads are connected to the 5 V Supply Output
CAN L/H
Warning
CAN-bus requires no common reference (ground). However, it is recommended that GND (ground) is carried along with CAN-L/H to prevent that the common-mode voltage is exceeded (resulting in transceiver damage)
LIN VBAT
The LIN-bus positive reference. Supports systems operating from 4 V to 24 V.
LIN1 VBAT: Pin is shared with device supply and shares the supply input protection circuit
LIN2 VBAT: Tolerates voltage spikes up to 48V. Spikes above this can damage the interface
LIN Data
LIN-bus single-wire data line referenced to LIN VBAT.
Wiring example
Below example illustrates how the CANedge CAN-bus 1 (channel 1) can be connected.