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1. General description

The TJA1051 is a high-speed CAN transceiver that 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,

providing differential transmit and receive capability to (a microcontroller with) a CAN

protocol controller.

The TJA1051 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 TJA1050. 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

• TJA1051T/3 and TJA1051TK/3 can be interfaced directly to microcontrollers with

supply voltages from 3Vto5V

The TJA1051 implements the CAN physical layer as defined in the current ISO11898

standard (ISO11898-2:2003). Pending the release of the updated version of ISO11898-2

including CAN FD, additional timing parameters defining loop delay symmetry are

specified. This implementation enables reliable communication in the CAN FD fast phase

at data rates up to 2 Mbit/s.

These features make the TJA1051 an excellent choice for all types of HS-CAN networks,

in nodes that do not require a standby mode with wake-up capability via the bus.

2. Features and benefits

2.1 General

 Fully ISO 11898-2:2003 compliant

 Loop delay symmetry timing enables reliable communication at data rates up to

2 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

input on TJA1051T/3 and TJA1051TK/3 allows for direct interfacing with 3 V to 5 V

microcontrollers (available in SO8 and very small HVSON8 packages respectively)

 EN input on TJA1051T/E allows the microcontroller to switch the transceiver to a very

low-current Off mode

 Available in SO8 package or leadless HVSON8 package (3.0 mm  3.0 mm) with

improved Automated Optical Inspection (AOI) capability

TJA1051

High-speed CAN transceiver

Rev. 7 — 15 January 2015 Product data sheet

Summary of content (22 pages)

PAGE 1
TJA1051 High-speed CAN transceiver Rev. 7 — 15 January 2015 Product data sheet 1. General description The TJA1051 is a high-speed CAN transceiver that 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, providing differential transmit and receive capability to (a microcontroller with) a CAN protocol controller.
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TJA1051 NXP Semiconductors High-speed CAN transceiver  Dark green product (halogen free and Restriction of Hazardous Substances (RoHS) compliant)  AEC-Q100 qualified 2.2 Low-power management  Functional behavior predictable under all supply conditions  Transceiver disengages from the bus when not powered up (zero load) 2.
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TJA1051 NXP Semiconductors High-speed CAN transceiver 4. Ordering information Table 2. Ordering information Type number Package Name Description Version TJA1051T SO8 plastic small outline package; 8 leads; body width 3.9 mm SOT96-1 TJA1051T/3[1] SO8 plastic small outline package; 8 leads; body width 3.9 mm SOT96-1 TJA1051T/E[1] SO8 plastic small outline package; 8 leads; body width 3.
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TJA1051 NXP Semiconductors High-speed CAN transceiver 6. Pinning information 6.1 Pinning 7-$ 7 7-$ 7 ( 7;' 6 7;' 6 *1' &$1+ *1' &$1+ 9&& &$1/ 9&& &$1/ 5;' Q F 5;' (1 DDD DDD a. TJA1051T: SO8 b. TJA1051T/E: SO8 WHUPLQDO LQGH[ DUHD 7-$ 7 7;' *1' 6 7;' 6 &$1+ *1' &$1+ 9&& &$1/ 5;' 9,2 9&& &$1/ 5;' 9,2 DDD 7UDQVSDUHQW WRS YLHZ DDD c.
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TJA1051 NXP Semiconductors High-speed CAN transceiver 7. Functional description The TJA1051 is a high-speed CAN stand-alone transceiver with Silent mode. It combines the functionality of the TJA1050 transceiver with improved EMC and ESD handling capability. Improved slope control and high DC handling capability on the bus pins provides additional application flexibility.
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TJA1051 NXP Semiconductors High-speed CAN transceiver 7.1.3 Off mode A LOW level on pin EN of TJA1051T/E selects Off mode. In Off mode the entire transceiver is disabled, allowing the microcontroller to save power when CAN communication is not required. The bus pins are floating in Off mode, making the transceiver invisible to the rest of the network. 7.2 Fail-safe features 7.2.1 TXD dominant time-out function A ‘TXD dominant time-out’ timer is started when pin TXD is set LOW.
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TJA1051 NXP Semiconductors High-speed CAN transceiver 8. Limiting values Table 5. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). All voltages are referenced to GND.
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TJA1051 NXP Semiconductors High-speed CAN transceiver 10. Static characteristics Table 7. Static characteristics Tvj = 40 C to +150 C; VCC = 4.5 V to 5.5 V; VIO = 2.8 V to 5.5 V[1]; RL = 60  unless specified otherwise; All voltages are defined with respect to ground; Positive currents flow into the IC[2]. Symbol Parameter Conditions Min Typ Max Unit 4.5 - 5.5 V Off mode (TJA1051T/E) 1 5 8 A Silent mode 0.1 1 2.
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TJA1051 NXP Semiconductors High-speed CAN transceiver Table 7. Static characteristics …continued Tvj = 40 C to +150 C; VCC = 4.5 V to 5.5 V; VIO = 2.8 V to 5.5 V[1]; RL = 60  unless specified otherwise; All voltages are defined with respect to ground; Positive currents flow into the IC[2]. Symbol Parameter Conditions Min Typ Max Unit VO(dif)bus bus differential output voltage VTXD = 0 V; t < tto(dom)TXD VCC = 4.75 V to 5.25 V RL = 45  to 65  1.
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TJA1051 NXP Semiconductors High-speed CAN transceiver 11. Dynamic characteristics Table 8. Dynamic characteristics Tvj = 40 C to +150 C; VCC = 4.5 V to 5.5 V; VIO = 2.8 V to 5.5 V[1]; RL = 60  unless specified otherwise. All voltages are defined with respect to ground. Positive currents flow into the IC.
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TJA1051 NXP Semiconductors High-speed CAN transceiver HIGH TXD LOW CANH CANL dominant 0.9 V VO(dif)(bus) 0.5 V recessive HIGH 0.7VIO RXD 0.3VIO LOW td(TXD-busrec) td(TXD-busdom) td(busrec-RXD) td(busdom-RXD) tPD(TXD-RXD) Fig 3. tPD(TXD-RXD) 015aaa025 CAN transceiver timing diagram 7;' [ WELW 7;' WELW 7;' 5;' WELW 5;' DDD Fig 4.
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TJA1051 NXP Semiconductors High-speed CAN transceiver 12. Application information 12.1 Application diagrams 5V BAT VCC CANH CANH EN S TJA1051T/E CANL CANL TXD RXD VDD Pxx Pyy TX0 RX0 MICROCONTROLLER GND GND Fig 5. 015aaa226 Typical application of the TJA1051T/E BAT 3V EN 5V VIO VCC VDD CANH CANH Pxx TJA1051T/3 TJA1051TK/3 CANL CANL S TXD RXD Pyy TX0 RX0 GND Fig 6. MICROCONTROLLER GND 015aaa227 Typical application of the TJA1051T/3 or TJA1051TK/3. 12.
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TJA1051 NXP Semiconductors High-speed CAN transceiver 13. Test information +5 V 47 μF 100 nF VIO/EN(1) VCC TXD CANH TJA1051 RXD GND RL 100 pF CANL S 15 pF 015aaa040 (1) For versions with a VIO pin (TJA1051T/3 and TJA1051TK/3) or an EN pin (TJA1051T/E), these inputs are connected to pin VCC. Fig 7. Timing test circuit for CAN transceiver 13.
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TJA1051 NXP Semiconductors High-speed CAN transceiver 14.
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TJA1051 NXP Semiconductors High-speed CAN transceiver 15. Handling information All input and output pins are protected against ElectroStatic Discharge (ESD) under normal handling. When handling ensure that the appropriate precautions are taken as described in JESD625-A or equivalent standards. 16. Soldering of SMD packages This text provides a very brief insight into a complex technology.
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TJA1051 NXP Semiconductors High-speed CAN transceiver • Process issues, such as application of adhesive and flux, clinching of leads, board transport, the solder wave parameters, and the time during which components are exposed to the wave • Solder bath specifications, including temperature and impurities 16.
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TJA1051 NXP Semiconductors High-speed CAN transceiver maximum peak temperature = MSL limit, damage level temperature minimum peak temperature = minimum soldering temperature peak temperature time 001aac844 MSL: Moisture Sensitivity Level Fig 10. Temperature profiles for large and small components For further information on temperature profiles, refer to Application Note AN10365 “Surface mount reflow soldering description”. 17.
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TJA1051 NXP Semiconductors High-speed CAN transceiver 18. Revision history Table 11. Revision history Document ID Release date Data sheet status Change notice Supersedes TJA1051 v.7 20150115 Product data sheet - TJA1051 v.6 Modifications: • • • • • • • • • • • • • Section 1: text revised (1st paragraph); paragraph added Section 2.
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TJA1051 NXP Semiconductors High-speed CAN transceiver 19. Legal information 19.1 Data sheet status Document status[1][2] Product status[3] Definition Objective [short] data sheet Development This document contains data from the objective specification for product development. Preliminary [short] data sheet Qualification This document contains data from the preliminary specification. Product [short] data sheet Production This document contains the product specification.
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TJA1051 NXP Semiconductors High-speed CAN transceiver No offer to sell or license — Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights. Translations — A non-English (translated) version of a document is for reference only.
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TJA1051 NXP Semiconductors High-speed CAN transceiver 21. Contents 1 2 2.1 2.2 2.3 3 4 5 6 6.1 6.2 7 7.1 7.1.1 7.1.2 7.1.3 7.2 7.2.1 7.2.2 7.2.3 7.2.4 7.3 8 9 10 11 12 12.1 12.2 13 13.1 14 15 16 16.1 16.2 16.3 16.4 17 18 19 19.1 19.2 19.3 General description . . . . . . . . . . . . . . . . . . . . . . 1 Features and benefits . . . . . . . . . . . . . . . . . . . . 1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Low-power management . . . . . . . . . . . . . . . . .