1. General description
The TJA1049 high-speed CAN transceiver provides an interface between a Controller
Area Network (CAN) protocol controller and the physical two-wire CAN bus. The
transceiver is designed for high-speed CAN applications in the automotive industry,
supplying the differential transmit and receive capability to (a microcontroller with) a CAN
protocol controller.
The TJA1049 belongs to the third generation of high-speed CAN transceivers from NXP
Semiconductors, offering significant improvements over first- and second-generation
devices such as the TJA1040. It offers improved ElectroMagnetic Compatibility (EMC)
and ElectroStatic Discharge (ESD) performance, and also features:
Ideal passive behavior to the CAN bus when the supply voltage is off
A very low-current Standby mode with bus wake-up capability
TJA1049T/3 and TJA1049TK/3 can be interfaced directly to microcontrollers with
supply voltages from 3Vto5V
The TJA1049 implements the CAN physical layer as defined in ISO 11898-2:2016 and
SAE J2284-1 to SAE J2284-5. This implementation enables reliable communication in the
CAN FD fast phase at data rates up to 5 Mbit/s.
These features make the TJA1049 an excellent choice for all types of HS-CAN networks,
in nodes that require a low-power mode with wake-up capability via the CAN bus.
2. Features and benefits
2.1 General
ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5 compliant
Timing guaranteed for data rates up to 5 Mbit/s in the CAN FD fast phase
Suitable for 12 V and 24 V systems
Low ElectroMagnetic Emission (EME) and high ElectroMagnetic Immunity (EMI)
V
IO
input on TJA1049T/3 and TJA1049TK/3 allows for direct interfacing with 3 V to 5 V
microcontrollers
SPLIT voltage output on TJA1049T and TJA1049TK for stabilizing recessive bus level
Both variants available in SO8 and HVSON8 packages
Leadless HVSON8 package (3.0 mm 3.0 mm) with improved Automated Optical
Inspection (AOI) capability
AEC-Q100 qualified
Dark green product (halogen free and Restriction of Hazardous Substances (RoHS)
compliant)
TJA1049
High-speed CAN transceiver with Standby mode
Rev. 6 — 15 January 2018 Product data sheet
TJA1049 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2018. All rights reserved.
Product data sheet Rev. 6 — 15 January 2018 2 of 27
NXP Semiconductors
TJA1049
High-speed CAN transceiver with Standby mode
2.2 Low-power management
Very low-current Standby mode with host and bus wake-up capability
Functional behavior predictable under all supply conditions
Transceiver disengages from the bus when not powered up (zero load)
2.3 Protection
High ESD handling capability on the bus pins
Bus pins protected against transients in automotive environments
Transmit Data (TXD) dominant time-out function
Bus-dominant time-out function in Standby mode
Undervoltage detection on pins V
CC
and V
IO
Thermally protected
3. Quick reference data
Table 1. Quick reference data
Symbol Parameter Conditions Min Typ Max Unit
V
CC
supply voltage 4.75 - 5.25 V
V
IO
supply voltage on pin V
IO
2.8 - 5.5 V
V
uvd(VCC)
undervoltage detection voltage
on pin V
CC
3.5 - 4.75 V
V
uvd(VIO)
undervoltage detection voltage
on pin V
IO
1.3 2.0 2.7 V
I
CC
supply current Standby mode: TJA1049T, TJA1049TK - 10 15 A
Standby mode: TJA1049T/3, TJA1049TK/3 - - 5 A
Normal mode; bus recessive 2.5 5 7.5 mA
Normal mode; bus dominant 20 45 65 mA
I
IO
supply current on pin V
IO
Standby mode 5 - 14 A
Normal mode; bus recessive 15 80 200 A
Normal mode; bus dominant - 350 1000 A
V
ESD
electrostatic discharge voltage IEC 61000-4-2 at pins CANH and CANL 8- +8kV
V
CANH
voltage on pin CANH 58 - +58 V
V
CANL
voltage on pin CANL 58 - +58 V
V
SPLIT
voltage on pin SPLIT 58 - +58 V
T
vj
virtual junction temperature 40 - +150 C
TJA1049 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2018. All rights reserved.
Product data sheet Rev. 6 — 15 January 2018 3 of 27
NXP Semiconductors
TJA1049
High-speed CAN transceiver with Standby mode
4. Ordering information
[1] TJA1049T and TJA1049TK with SPLIT pin; TJA1049T/3 and TJA1049TK/3 with V
IO
pin.
Table 2. Ordering information
Type number
[1]
Package
Name Description Version
TJA1049T SO8 plastic small outline package; 8 leads; body width 3.9 mm SOT96-1
TJA1049TK HVSON8 plastic thermal enhanced very thin small outline package; no leads;
8 terminals; body 3 3 0.85 mm
SOT782-1
TJA1049T/3 SO8 plastic small outline package; 8 leads; body width 3.9 mm SOT96-1
TJA1049TK/3 HVSON8 plastic thermal enhanced very thin small outline package; no leads;
8 terminals; body 3 3 0.85 mm
SOT782-1

TJA1049T,118

Mfr. #:
Manufacturer:
NXP Semiconductors
Description:
CAN Interface IC Hi Spd CAN Transcvr 4.75V-5.25V 220ns
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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