OPTIREG™ SBC TLE9274QXV33
High-speed CAN transceiver
8
High-speed CAN transceiver
8.1
Block description
VCAN
VCC1
SPI Mode
Control
RTD
Driver
CANH
CANL
Output
Stage
TXDCAN
Temp.-
Protection
+
timeout
To SPI diagnostic
VCAN
VCC1
RXDCAN
MUX
Receiver
Vs
Wake
Receiver
can block .vsd
Figure 17 Functional block diagram
8.2
Functional description
The Controller Area Network (CAN) transceiver part of the SBC provides high-speed (HS) differential mode
data transmission (up to 5 Mbaud) and reception in automotive and industrial applications. It works as an
interface between the CAN protocol controller and the physical bus lines compatible with ISO 11898-2: 2016
as well as SAE J2284.
The CAN transceiver offers low power modes to reduce current consumption. This supports networks with
partially powered down nodes. To support software diagnostic functions, a CAN Receive-Only mode is
implemented.
It is designed to provide excellent passive behavior when the transceiver is switched off (mixed networks,
clamp 15/30 applications).
A wake-up from the CAN Wake-Capable mode is possible via a message on the bus. Thus, the microcontroller
can be powered down or idled and will be woken up by the CAN bus activities.
The CAN transceiver is designed to withstand the severe conditions of automotive applications and to support
12 V applications.
Datasheet
47
Rev.2.0
2022-05-06
INFINEON [ Infineon ]
