Automotive CAN FD system basis chip with LDO output and watchdog

The TCAN1167-Q1 is a high-speed

Controller Area Network (CAN) system basis chip (SBC) that meets the physical layer

requirements of the ISO 11898-2:2016 high-speed CAN specification. The transceiver supports

both classical CAN and CAN FD networks up to 8 megabits per second (Mbps).

The TCAN1167-Q1 supports a wide

input supply range and integrates a 5V LDO output. The 5V LDO output (VCCOUT)

supplies the CAN transceiver voltage internally as well as additional current

externally.

The TCAN1167-Q1 allows for

system-level reductions in battery current consumption by selectively enabling the various

power supplies that can be present on a system via the INH output pin. This allows an

ultra-low-current sleep state where power is gated to all system components except for the

TCAN1167-Q1, while monitoring the CAN bus. When a wake-up event is detected, on

the bus or when a local wake-up is requested via the WAKE input, the TCAN1167-Q1

initiates system start-up by driving INH high.

The TCAN1167-Q1 supports an ultra

low-power standby mode where the high-speed transmitter and normal receiver are switched off

and a low-power wake-up receiver enables remote wake-up via the ISO 11898-2:2016 defined

wake-up pattern (WUP).

The TCAN1167-Q1 supports watchdog functionality, making sure the system is

healthy by requiring the processor to reset the watchdog timer within a time window.