SCLK
MCU
V
DD
Optional:
Terminating
Node
Optional:
Filtering,
Transient and
ESD
Voltage Regulator
V
IN
V
IOOUT
V
BAT
MOSI
MISO
nCS
2-wire
CAN
bus
SCLK
CANH
TXD
RXD
V
IO
WAKE
GND
V
SUP
CANL
nCS
INH
EN
SDO
SDI
100 nF
TCAN1145
TCAN1146
22 nF
33 k
3 k
5 V
OUT
V
CC
CAN
CNTL
10 µF
10 µF
Selective
Wake
1
5
4
3
2
7
6
8
9
10
11
12
13
14
SCLK
MCU
V
DD
Optional:
Terminating
Node
Optional:
Filtering,
Transient and
ESD
Voltage Regulator
V
IN
V
IOOUT
V
BAT
MOSI
MISO
nCS
2-wire
CAN
bus
SCLK
CANH
TXD
RXD
V
IO
WAKE
GND
V
SUP
CANL
nCS
INH
EN
SDO
SDI
100 nF
TCAN1144
22 nF
33 k
3 k
5 V
OUT
V
CC
CAN
CNTL
10 µF
10 µF
1
5
4
3
2
7
6
8
9
10
11
12
13
14
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. ADVANCE INFORMATION for pre-production products; subject to
change without notice.
TCAN1144-Q1
,
TCAN1145-Q1
,
TCAN1146-Q1
SLLSF81 –OCTOBER 2019
TCAN114x-Q1 Enhanced CAN FD and High Speed CAN Transceiver with Selective Wake
1
1 Features
1
• AEC-Q100 (Grade 1) Qualified for automotive
applications
• Meets the requirements of ISO 11898-2:2016
• TCAN1145-Q1 and TCAN1146-Q1 support
selective wake, partial networking
• CAN FD transceiver supporting communication
rates up to 8 Mbps
• Classical CAN backwards compatible
• Operating modes programmable through SPI
command
– Normal mode
– Low power standby mode
– Low power selective wake mode
– Low power sleep mode
• 1.8 V, 3.3 V to 5 V MCU support
• Wide operating range:
– ±58 V Bus fault protection
– ±12 V Common mode
• TCAN1144-Q1 and TCAN1146-Q1 support
timeout and window watchdog
• Programmable INH/LIMP pin
• TCAN1144-Q1 and TCAN1146-Q1 support
advanced bus fault diagnostics and reporting
• 14-Pin SOIC, VSON
2 Applications
• Body electronics and lighting
• Automotive infotainment and cluster
• Hybrid, electric & powertrain systems
• Industrial transportation
3 Description
The TCAN114x-Q1 is a family of enhanced high-
speed CAN FD transceivers supporting data rates up
to 8 Mbps. These devices are configured using serial
peripheral interface (SPI) in order to use all the
features available. The TCAN114x-Q1 supports 1.8 V
to 5 V processors by applying the appropriate voltage
to the V
IO
pin, allowing lower power processors to be
utilized. The family of devices are register compatible
enabling the system designer the flexibility to
implement the features needed with minimal if any
hardware and software changes.
The TCAN1144-Q1 and TCAN1146-Q1 are full
featured devices supporting watchdog and advanced
bus diagnostics. For ease of debug, the advanced
bus fault diagnostics and communication feature can
be used to pinpoint bus faults when used with other
devices supporting this feature. The inhibit (INH) pin
can be used to enable node power but if this is not
required, the pin can be configured as a limp home
pin when a watchdog error takes place.
The TCAN1145-Q1 and TCAN1146-Q1 support
selective wake, also known as partial networking,
used in systems containing nodes that can be placed
into sleep mode and reducing overall power of the
system. The transceiver and selective wake function
meets the specifications of the ISO11898-2:2016
standard. If a watchdog and advanced bus
diagnostics are not needed then the TCAN1145-Q1 is
the device to select.
Device Information
(1)
PART NUMBER PACKAGE BODY SIZE (NOM)
TCAN114x-Q1
SOIC (D) 9.90 mm x 3.91 mm
VSON (DMT) 3.00 mm x 4.5 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematics Simplified Schematics