TJA1051T/3 - 5 Mbit/s CAN FD Transceiver, SOIC-8 | NXP
MPN: TJA1051T/3 ✓ فعالTJA1051T/3 جائزہ
A CAN transceiver is a physical-layer interface device that converts the logic-level TXD and RXD signals of a CAN protocol controller into the dominant and recessive differential voltage levels carried by the two-wire CAN bus, and converts bus levels back into a logic-level RXD signal. In the classification hierarchy, a CAN transceiver is a bus transceiver, then a line interface IC, then an interface IC, and finally a semiconductor.
Key features of the TJA1051T/3 include guaranteed timing for data rates up to 5 Mbit/s in the CAN FD fast phase, low electromagnetic emission (EME) combined with high electromagnetic immunity (EMI), and a VIO input pin that lets a 3 V MCU drive the logic side directly without a level shifter. It also exhibits predictable, passive bus behavior when the device is unpowered, and features improved ESD and EMC performance compared with earlier CAN transceiver generations.
Architecturally, the TJA1051 belongs to NXP's third generation of CAN transceivers, adding enhanced EMC and ESD behaviour over the earlier TJA1050 family while keeping the classic 8-pin SOIC footprint that dominated automotive body and comfort electronics. Because CAN FD raises the arbitration phase to the classic CAN rate and only the data phase to 5 Mbit/s, the device is commonly paired with CAN FD-capable controllers.
Typical applications include automotive body control modules and comfort systems, industrial automation and factory fieldbus gateways, building automation and HVAC controllers, medical monitoring equipment with networked sensors, and CAN-based robotics or test instrumentation. The 8-pin SOIC footprint also keeps the part compatible with legacy PCB layouts that previously carried a TJA1050 or TJA1042.
When designing around the TJA1051T/3, keep the CANH and CANL traces short, symmetric and away from high-current switching nodes, and place the 60 nF bus split capacitor close to the bus connector. Because the transceiver draws its supply from a 5.5 V rail and its logic side from VIO, budget both rails correctly and never leave the VIO pin floating.
This page consolidates device specifications, verified distributor availability, drop-in pin-compatible alternatives, and practical PCB and EMC design notes that are not consolidated in a single place in the manufacturer documentation.
کے لیے ڈراپ اِن متبادل TJA1051T/3 — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں TJA1051T/3 (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Product Type, Protocol, Mounting Type, Number of Drivers/Receivers.
TJA1051T/3/1J
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →TJA1051T/3/2Z
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →TJF1051T/3
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →TJA1044GT/3Z
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
TCAN1051VDRQ1
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →MCP2562FD-E/SN
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →TJA1051T/3 تفصیلات
| Product Type | CAN FD high-speed transceiver |
| Manufacturer | NXP Semiconductors |
| پیکیج | 8-pin SOIC (SO-8) |
| ڈیٹا ریٹ | up to 5 Mbit/s (CAN FD fast phase) |
| Standard Compliance | ISO 11898-2:2003 |
| Supply Voltage (VCC) | 5.5 V maximum |
| Logic Supply (VIO) | 3 V to 5 V MCU interfacing |
| Bus Levels | Dominant and recessive differential CAN bus |
| System Support | 12 V and 24 V systems |
| EMI Performance | Low electromagnetic emission (EME), high electromagnetic immunity (EMI) |
| ESD Performance | Enhanced versus earlier CAN transceiver generations |
| Unpowered Behavior | Passive behavior when unpowered |
| Microcontroller Interface | TXD and RXD logic pins, direct 3 V to 5 V MCU drive |
| Automotive Qualification | AEC-Q100 Grade 1 |
| ماؤنٹنگ ٹائپ | Surface Mount |
| پنز کی تعداد | 8 |
TJA1051T/3 پن کنفیگریشن
| پن 1 | TXD — Transmit data input from the CAN controller |
| پن 2 | GND — Ground reference |
| پن 3 | VIO — Logic-side supply for TXD and RXD inputs (3 V to 5 V) |
| پن 4 | RXD — Receive data output to the CAN controller |
| پن 5 | VIO — Alternate logic-side supply connection for TXD and RXD (confirm against datasheet pin description for the exact ordering code) |
| پن 6 | CANL — CAN bus low output and receiver input |
| پن 7 | CANH — CAN bus high output and receiver input |
| پن 8 | VCC — Core supply voltage (5.5 V maximum) |
عام استعمالات
TJA1051T/3 کے لیے موزوں ہے 6 ایپلیکیشنs: Automotive Body Control Module, Industrial Automation and Fieldbus Gateway, Building Automation and HVAC Control, Medical Monitoring Equipment, CAN-Based Robotics and Test Instrumentation, CAN-to-Ethernet Network Bridge.
Automotive Body Control Module
The TJA1051T/3 suits body control units because it is AEC-Q100 Grade 1 qualified, ISO 11898-2:2003 compliant, and rated for 12 V and 24 V vehicle systems. Its low electromagnetic emission keeps noise off sensitive analog and RF sections of the ECU, while high electromagnetic immunity protects the bus during cranking and load-dump transients. With timing guaranteed for data rates up to 5 Mbit/s in the CAN FD fast phase, the same transceiver can serve classic CAN clusters and CAN FD gateways. The 8-pin SOIC footprint matches the TJA1050 sockets commonly found in existing body modules, and the VIO input lets a 3.3 V or 5 V MCU drive the logic side directly without a level shifter.
تجویز کردہ
Industrial Automation and Fieldbus Gateway
Plant floor gateways that translate between CAN and Ethernet or RS-485 benefit from the TJA1051T/3 because its low EME and high EMI behaviour allows the CAN segment to run next to motor drives and contactors without corrupting the bus. The transceiver's passive unpowered behavior prevents a gateway that is power-cycled from blocking communication among other nodes on the same bus segment. With data rates up to 5 Mbit/s available in the CAN FD fast phase, the part supports modern sensor backbones and machine-to-machine links while remaining compatible with classic CAN at 1 Mbit/s. The 8-pin SOIC package keeps the design compact and reflow-friendly for automated assembly.
تجویز کردہ
Building Automation and HVAC Control
HVAC controllers, room thermostats, and building automation panels use the TJA1051T/3 as a robust physical layer for CAN-based building networks running on 24 V bus power. The device's ability to work with a 5.5 V core supply and a separate VIO input makes it straightforward to pair with the 3.3 V microcontrollers that dominate modern HVAC electronics. Predictable passive behavior when unpowered matters in buildings where controllers may be individually powered down or hot-swapped without disrupting the rest of the floor's CAN segment. Low radiated emission keeps the transceiver usable in equipment that also carries high-speed Ethernet and Wi-Fi circuitry in the same enclosure.
تجویز کردہ
Medical Monitoring Equipment
Patient monitors and diagnostic carts that distribute sensor data across a cabinet-level CAN network can use the TJA1051T/3 to gain both a long bus reach and strong immunity to the electrical noise generated by switching power supplies and motorised pumps in the same cabinet. The transceiver's low electromagnetic emission reduces the coupling of bus activity back into sensitive analogue front ends. CAN FD support up to 5 Mbit/s in the fast phase allows high-resolution waveform or imaging payloads to be distributed without long frame times. Because the device operates from a 5.5 V core rail with a selectable 3 V or 5 V logic supply, it integrates cleanly with the low-power mixed-signal controllers typical of portable medical carts.
تجویز کردہ
CAN-Based Robotics and Test Instrumentation
Mobile robots, AGVs, and bench test fixtures often need a CAN link between a motion controller and distributed I/O nodes at ranges that exceed UART. The TJA1051T/3 delivers 5 Mbit/s CAN FD fast-phase timing and high EMI immunity, which helps maintain link integrity in equipment where motor drives, servo amplifiers, and stepper stages share the chassis. The unpowered passive behavior is valuable in lab setups where instrument modules are individually switched on and off during a test campaign without disturbing the rest of the bus. Its 8-pin SOIC footprint is widely supported by automated pick-and-place assembly and matches standard 8-pin CAN transceiver sockets on legacy test fixtures.
تجویز کردہ
CAN-to-Ethernet Network Bridge
A CAN-to-Ethernet bridge is a natural fit for the TJA1051T/3 because the Ethernet side is a high-speed, high-noise digital domain while the CAN side must remain deterministic and error tolerant. The transceiver's low electromagnetic emission reduces the amount of coupling into the Ethernet magnetics and PHY, and its high immunity rejects the fast-edge Ethernet and switching-supply noise that a bridge PCB inevitably picks up. Using a VIO-tied 3.3 V logic supply keeps the CAN controller side operating from the same 3.3 V rail as the Ethernet controller, reducing level-shifting components. Supporting classic CAN and CAN FD on one physical layer allows the bridge to serve legacy factory buses and new FD-capable machines.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا TJA1051T/3 — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | TJA1051T/3/1J | TJA1051T/3/2Z | TJF1051T/3 | TJA1044GT/3Z | TCAN1051V | MCP2562FD |
|---|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | Texas Instruments | Microchip Technology |
| Package | SOIC-8 | SOIC-8 - same | SOIC-8 - same | SOIC-8 - same | SOIC-8 - same | SOIC-8 - same | SOIC-8 - same |
| Maximum Data Rate | 5 Mbit/s (CAN FD fast phase) | 5 Mbit/s (CAN FD fast phase) | 5 Mbit/s (CAN FD fast phase) | 5 Mbit/s class | 5 Mbit/s class | 5 Mbit/s class | Higher CAN FD data phase rate than 5 Mbit/s |
اہم امتیازی خصوصیات
- VIO pin allows direct 3 V to 5 V MCU interfacing without a level shifter (بمقابلہTCAN1051V)
- AEC-Q100 Grade 1 automotive qualification with 12 V and 24 V system support (بمقابلہTJA1044GT/3Z)
- Passive bus behavior when unpowered plus enhanced third-generation EMC/ESD (بمقابلہTJF1051T/3)
- Guaranteed 5 Mbit/s CAN FD fast-phase timing (بمقابلہMCP2562FD)
ڈیزائن نوٹس
Route CANH and CANL as a tightly coupled, impedance-matched pair on the board and keep them as short as possible between the transceiver and the bus connector. A common PCB pitfall is routing CANH and CANL separately with different reference planes, which creates differential impedance discontinuities and reflections that corrupt the bit stream at 5 Mbit/s. Place the 60 nF split capacitor across CANH and CANL at the connector entry, and keep it electrically close to the transceiver pins as well.
The TJA1051T/3 is specified for low electromagnetic emission and high immunity, but those ratings assume a sound reference layout. Keep the transceiver ground pins connected to a solid ground plane with a short via path, and separate the CAN routing from switching nodes, inductors, and relay contacts in the same enclosure. When the design contains a switching supply, keep the DC/DC converter and its high-current loop physically distant from the CAN pair, since common-impedance coupling through the ground plane is usually the dominant source of radiated emissions in otherwise compliant designs.
The transceiver core is powered from VCC (5.5 V maximum) while the logic side is powered from VIO, which can be tied to a 3 V or 5 V MCU rail. Tie VIO to the same rail as the CAN controller I/O and never leave it floating, because a floating VIO pin leaves the TXD and RXD thresholds undefined. Decouple VCC locally with a 100 nF ceramic capacitor placed close to the pin, and add bulk capacitance near the regulator so that bus switching currents do not pull the core rail down during dominant-bit bursts.
Do not substitute a classic 1 Mbit/s CAN transceiver such as a TJA1042 into a design that relies on CAN FD fast-phase operation; the arbitration phase works but the data phase timing is not guaranteed and frames will fail at the higher rate. Conversely, when moving from a TJA1050 socket, check that the VIO connection matches your supply plan, since the VIO-equipped part behaves differently from the fixed 5 V logic version at power-up. Finally, confirm the exact ordering code you are placing, because the TJA1051T/3 variants differ in packing and temperature grade rather than in function.
تعمیل کی معلومات
AEC-Q100 Grade 1 qualification is cited for the TJA1051T/3 in a 2026 sourcing cross-reference article. RoHS, REACH, lead-free and halogen-free statements were not present in the retrieved sources and are therefore left unknown; confirm against the current manufacturer product page or declaration before release.
