TJF1051T/3/1J - High-Speed CAN Transceiver, SO-8 | NXP
Teilenummer: TJF1051T/3/1J ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $1.1 | $1,10 |
| 10 | $0.99 | $9,90 |
| 100 | $0.88 | $88,00 |
| 500 | $0.78 | $390,00 |
| 1.000 | $0.68 | $680,00 |
TJF1051T/3/1J Übersicht
A CAN transceiver is the analog front-end that converts the digital TXD/RXD logic levels of a microcontroller into the differential dominant/recessive signalling required on the CAN bus, while also providing ESD protection, bus fault tolerance, and common-mode rejection. The TJF1051T/3 family adds a VIO level-adapter supply pin that allows direct interfacing to microcontrollers with supply voltages from 3V to 5V, simplifying mixed-voltage designs where the MCU runs at 3.3V but the bus nodes may operate at 5V.
Key features include an extremely low ElectroMagnetic Emission (EME) due to built-in slope control on the CANH/CANL outputs, a Silent mode (S) input for low-power bus monitoring without disturbing traffic, and high immunity to ElectroMagnetic Interference (EMI) on the bus lines. The device also includes thermal shutdown, bus dominant time-out protection, and an undervoltage detector on VCC and VIO, ensuring robust behaviour on harsh automotive or industrial bus networks. It is the pin-compatible successor to the TJA1051 with improved EMC behaviour and tighter parametric compliance with the ISO 11898-2:2016 specification.
Typical applications include automotive body and chassis CAN nodes, industrial CANopen networks, building automation, and any MCU-to-CAN-bus interface requiring 3.3V or 5V logic compatibility with low EME and high EMI immunity. Compared with older TJA1050/TJA1040 designs, the TJF1051T/3 provides substantially reduced electromagnetic emissions, removing the need for external common-mode chokes in many layouts.
When designing with this part, place the VIO decoupling capacitor as close as possible to pin 5 and ensure both VCC and VIO are present before TXD transitions are applied. The Silent mode pin must be tied LOW for normal operation or driven by the MCU when bus diagnostics or low-power standby states are required. The /1 JTR suffix indicates 2500-piece reel packaging.
Drop-in-Alternativen für TJF1051T/3/1J – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit TJF1051T/3/1J (gleiche Bauform und Footprint) – abweichend in Operating Temperature, Package, Protocol, Mounting Type, Number of Drivers/Receivers.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
TJF1051T/3
✅ Drop-In✓ Auf Lager
$0.62 / Stück
Datenblatt ansehen →TJF1051T/3/1
✅ Drop-In✓ Auf Lager
$0.78 / Stück
Datenblatt ansehen →TJA1051T/3,118
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
TJA1051T/E,118
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
TCAN1042DR
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
TLE9251V
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
TJF1051T/3/1J Technische Daten
| Product Type | High-speed CAN transceiver |
| Protocol | CAN 2.0A/B, ISO 11898-2:2003, ISO 11898-5:2007, ISO 11898-2:2016 |
| Number of Drivers/Receivers | 1/1 |
| Duplex | Half |
| Maximum Data Rate | 5 Mbit/s |
| I/O Supply Voltage (VIO) | 3 V to 5 V |
| Betriebstemperatur | -40C to +125C |
| Gehäuse | SO-8 (SOIC-8) |
| Montageart | Surface Mount |
| Silent Mode Input (S) | Yes |
| VIO Level Adapter Pin | Yes (TJF1051T/3 variant) |
| RoHS-Status | Compliant |
TJF1051T/3/1J Pin-Konfiguration
| Pin 1 | TXD — Transmit data input from MCU to CAN bus |
| Pin 2 | GND — Ground reference |
| Pin 3 | VCC — Supply voltage (typically 5V) |
| Pin 4 | RXD — Receive data output from CAN bus to MCU |
| Pin 5 | VIO — I/O level adapter supply (TJF1051T/3 only); tie to MCU supply 3V-5V |
| Pin 6 | CANL — LOW-level CAN bus line |
| Pin 7 | CANH — HIGH-level CAN bus line |
| Pin 8 | S — Silent mode control input (HIGH = silent/listen-only) |
Typische Anwendungen
TJF1051T/3/1J ist geeignet für 6 Anwendungs: Industrial CANopen Networks, Building Automation HVAC Control, Electric Vehicle Charging (Non-Automotive Grade Variants), Medical Device Inter-Module Communication, Solar Inverter and Renewable Energy CAN Bus, Industrial Robotics CAN-Based Servo Control.
Industrial CANopen Networks
The TJF1051T/3/1J provides the physical layer for CANopen nodes on factory automation networks requiring deterministic communication and high noise immunity. Its 5 Mbit/s capability supports classical CANopen DS301 profiles used in motor controllers, I/O modules, and HMI panels. The VIO pin simplifies mixed-voltage designs where the MCU runs at 3.3V while other bus nodes operate at 5V. Its low electromagnetic emissions reduce the need for shielding in dense control cabinets.
Empfohlen
Building Automation HVAC Control
Building automation systems use CAN-based protocols for HVAC controllers, lighting nodes, and access control. The TJF1051T/3/1J supports reliable communication over long cable runs typical in commercial installations. Its thermal shutdown and bus fault protection ensure robust operation in 24/7 installed environments. The Silent mode pin allows individual nodes to enter low-power standby without disrupting bus traffic, supporting energy-saving building management strategies.
Empfohlen
Electric Vehicle Charging (Non-Automotive Grade Variants)
AC charging pile controllers and DC charger communication boards use CAN bus for vehicle-to-charger handshake. The TJF1051T/3/1J's 5 Mbit/s data rate supports ISO 15118-2 power-line communication handshake and CHAdeMO control messaging on auxiliary CAN channels. Its wide operating temperature range of -40C to +125C handles outdoor enclosure thermal swings. The integrated slope control minimises EME in switching-rich power converter environments.
Empfohlen
Medical Device Inter-Module Communication
Medical imaging systems and patient monitors use CAN bus for inter-module communication between sensor front-ends, processing boards, and display units. The TJF1051T/3/1J provides galvanic isolation-friendly differential signalling when paired with digital isolators, ensuring patient safety. Its low EME characteristic helps meet IEC 60601-1-2 EMC requirements for medical equipment. The Silent mode allows individual modules to enter diagnostic mode without disturbing the main communication bus.
Empfohlen
Solar Inverter and Renewable Energy CAN Bus
Solar inverters and battery management systems use CAN bus for inter-module communication between PV string monitors, inverters, and battery banks. The TJF1051T/3/1J's wide supply range and high ESD tolerance handle the harsh electrical environment of high-voltage DC power systems. Its high EMI immunity prevents communication errors caused by switching noise from power MOSFETs and IGBTs. The VIO pin allows direct connection to 3.3V MCUs commonly used in modern inverter designs.
Empfohlen
Industrial Robotics CAN-Based Servo Control
The TJF1051T/3/1J provides reliable CAN communication for servo drives and robotic arm controllers in industrial automation. Its low EME is critical in motor-control environments with high dV/dt switching from power stages. The VIO pin supports direct interfacing to 3.3V MCUs commonly used in modern servo controllers. The 5 Mbit/s data rate enables real-time position feedback loops typical in collaborative robot joints and CNC machine tools.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für TJF1051T/3/1J – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | TJF1051T/3 | TJF1051T/3/1 | TJA1051T/3,118 | TJA1051T/E, | TCAN1042DR | TLE9251V |
|---|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | Texas Instruments | Infineon |
| Package | SO-8 | SO-8 - same | SO-8 - same | SO-8 - same | SO-8 - same | SO-8 - same | SO-8 - same |
| Maximum Data Rate | 5 Mbit/s | 5 Mbit/s | 5 Mbit/s | 5 Mbit/s | 5 Mbit/s | 5 Mbit/s | 5 Mbit/s |
| ISO 11898-2:2016 Compliance | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Pin 5 Function | VIO (3V-5V level adapter) | VIO | VIO | VIO | EN (enable input) | VIO/Auto-enable | VIO |
| Automotive Qualification (AEC-Q100) | No (industrial grade) | No | No | No | No | Yes | Yes |
| Silent Mode Input (S) | Yes | Yes | Yes | Yes | Yes | Optional via pin strapping | Yes |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +150C (automotive) |
Wichtigste Unterscheidungsmerkmale
- VIO level-adapter pin for direct 3.3V MCU interfacing (vs. TJA1051T (non-/3 variant))
- Improved EMC profile vs legacy TJA1051T/3 (vs. TJA1051T/3,118)
- Industrial/consumer grade option at lower cost vs AEC-Q100 alternatives (vs. TCAN1042DR (TI))
Designhinweise
Place a 100 nF X7R ceramic decoupling capacitor as close as possible to pin 3 (VCC) and a separate 100 nF capacitor as close as possible to pin 5 (VIO). According to the NXP TJF1051 datasheet, inadequate VIO decoupling can cause logic-level glitches on TXD/RXD lines and bus communication errors. Keep the CANH/CANL traces as short as possible and use a twisted-pair or controlled-impedance differential routing with 120 ohm characteristic impedance matching the bus termination resistors at each end of the bus segment.
Do not leave the S (Silent mode) pin floating. According to the NXP TJF1051 datasheet, pin 8 must be tied LOW for normal transmit/receive operation, or driven by the MCU when diagnostic listen-only mode is required. A floating S pin can cause intermittent bus silencing in noisy environments. Also note the VIO pin (5) is only present on the TJF1051T/3 variant; for the non-/3 part this pin is no-connect, and leaving VIO floating on /3 parts will cause undefined TXD/RXD logic levels.
Route CANH and CANL as a tightly coupled differential pair with 120 ohm differential impedance, and avoid crossing them with noisy digital or switching power traces. The bus termination should use split termination (two 60 ohm resistors with a capacitor to ground at the centre tap) to improve EME performance, especially important when migrating from TJA1050 designs where a single 120 ohm resistor was common. According to NXP's EMC application notes, this layout typically reduces common-mode noise by 6-10 dB.
When interfacing to a 3.3V MCU, ensure the VIO supply is the same rail as the MCU supply and is stable before TXD transitions are applied. According to the NXP TJF1051 datasheet, applying TXD edges while VIO is below its undervoltage threshold can put the transceiver into an undefined state and corrupt bus communication. For 5V-only systems where VIO is not needed, tie VIO to VCC through a small ferrite or resistor to share the same 5V rail. Add a TVS diode such as PESD1CAN or similar on CANH/CANL for automotive transient protection per ISO 7637-2.
Compliance-Informationen
RoHS compliant per NXP product page. Not AEC-Q100 qualified - use TCAN1042DR or TLE9251V for AEC-Q100 automotive nodes. Halogen-free status not explicitly stated in retrieved data.
