Automotive CAN-FD transceiver with integrated 5-V supply and 3.3-V, 70-mA LDO

The TCAN1162x-Q1 are high-speed controller area network (CAN) system basis chips (SBC)

that meet the physical layer requirements of the ISO 11898-2:2016 high-speed CAN

specification. The TCAN1162x-Q1 supports both classical CAN and CAN FD networks up

to 8 megabits per second (Mbps).

Both the

TCAN11623-Q1 and TCAN11625-Q1 support a wide input supply range and integrates some form of

an LDO output. The TCAN11625-Q1 has a 5V LDO output (VCCOUT) which supplies the

CAN transceiver voltage internally as well as additional current externally. The

TCAN11623-Q1 has a 3.3V LDO output (VLDO3), supplied from the 5V LDO, supporting

external loads.

The TCAN1162x-Q1 allows for system-level reductions in battery current consumption by

selectively enabling the various power supplies that may 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 TCAN1162x-Q1, while monitoring the CAN bus. When a

wake-up event is detected, the TCAN1162x-Q1 initiates system start-up by driving

INH high.

This allows an

ultra-low-current sleep state in which power is gated to all system components except for

the TCAN1162x-Q1, which remains in a low-power state while monitoring the CAN bus.

When a wake-up event is detected, the TCAN1162x-Q1 initiates node start-up by

driving INH high.

The TCAN1162x-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 TCAN1162x-Q1 includes internal logic level translation via the VIO

terminal to allow for interfacing directly to 1.8V, 2.5V, 3.3V, or 5V controllers. The

transceiver includes many protection and diagnostic features including undervoltage

detection, over voltage detection, thermal shutdown (TSD), driver dominant timeout (TXD

DTO), and bus fault protection up to ±58V.