NXP Semiconductors TJA1051T/3,118
- Part No.:
- TJA1051T/3,118
- Manufacturer:
- NXP Semiconductors
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TJA1051T/3,118.pdf
- Description:
- IC TRANSCEIVER HALF 1/1 8SO
- Quantity:
- Payment:

- Shipping:

Inventory:54,403
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Product details
Overview
TJA1051T/3,118 from NXP Semiconductors is a high-speed CAN transceiver implementing ISO 11898-2:2016 and SAE J2284-1 to -5, supporting CAN FD fast-phase data rates up to 5 Mbit/s. It provides differential transmit/receive capability between a microcontroller's CAN protocol controller and the two-wire physical bus, with VIO pin enabling direct interfacing to 3 V–5 V MCUs in automotive body control modules.
For engineers reviewing the TJA1051T/3,118 datasheet, TJA1051T/3,118 pinout, TJA1051T/3,118 application, or TJA1051T/3,118 equivalent, key selection criteria include VIO-supplied I/O level adaptation, Silent mode bus isolation, undervoltage detection on VCC/VIO, ±58 V bus fault tolerance, and AEC-Q100 qualification for 12 V/24 V automotive systems.
Technical Context
The TJA1051T/3 implements the full ISO 11898-2 physical layer with slope-controlled drivers ensuring low EME and robust EMC performance. Its dual-supply architecture (VCC = 4.5–5.5 V, VIO = 2.8–5.5 V) decouples logic-level signaling from bus power, enabling interoperability with mixed-voltage microcontrollers.
Functional safety features include TXD dominant time-out (0.3–5 ms), undervoltage detection on both VCC (3.5–4.5 V) and VIO (1.3–2.7 V), thermal shutdown at 190 °C, and fail-safe passive bus disengagement when unpowered - all verified under AEC-Q100 Grade 1 (−40 °C to +125 °C ambient).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bus Data Rate | Up to 5 Mbit/s in CAN FD fast phase - enables high-bandwidth diagnostics and firmware updates. |
| VIO Supply Range | 2.8 V to 5.5 V - allows direct interface with 3 V, 3.3 V, and 5 V microcontrollers without level shifters. |
| Bus Fault Tolerance | ±58 V on CANH/CANL - withstands load dump and jump-start transients in 12 V/24 V automotive systems. |
| TXD Time-out | 0.3 ms to 5 ms - prevents permanent bus dominance due to MCU lockup or software fault. |
| ESD Protection | ±8 kV HBM on CANH/CANL - meets IEC 61000-4-2 for robust handling in assembly and field environments. |
| Operating Temp | −40 °C to +150 °C virtual junction temperature - supports under-hood and transmission control unit placement. |
| Supply Current | 0.1–2.5 mA in Silent mode - minimizes quiescent power in always-on network nodes. |
Pinout & Package
Package: SO8 (SOT96-1), plastic small outline, 8 leads, 3.9 mm body width, lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - TXD | Transmit Data Input | CMOS-compatible input with internal pull-up to VIO; drives bus via controlled-slope driver. |
| 2 - GND | Ground Reference | Primary ground return for VCC, VIO, and bus circuitry; must be connected to PCB ground plane. |
| 3 - VCC | Main Supply Voltage | 4.5–5.5 V supply powering bus drivers and internal logic; includes undervoltage detection (3.5–4.5 V). |
| 4 - RXD | Receive Data Output | CMOS output referenced to VIO; provides digital bus state to MCU with 40–250 ns propagation delay. |
| 5 - VIO | I/O Level Adapter Supply | 2.8–5.5 V reference setting TXD/RXD/S logic thresholds - enables 3 V MCU compatibility. |
| 6 - CANL | CAN Bus Low Line | Differential bus terminal with ±58 V fault tolerance and 19–52 kΩ differential input resistance. |
| 7 - CANH | CAN Bus High Line | Differential bus terminal symmetric to CANL; outputs 2.75–4.5 V dominant voltage (VCC-referenced). |
| 8 - S | Silent Mode Control | Active-HIGH input disabling transmitter while preserving receiver operation - isolates faulty nodes. |
Key Features
| Feature | Design Value |
|---|---|
| ISO 11898-2:2016 Compliance | Guarantees interoperability with all HS-CAN networks including CAN FD fast phase up to 5 Mbit/s. |
| VIO Pin Architecture | Enables direct connection to 3 V–5 V microcontrollers without external level-shifting components. |
| Silent Mode Functionality | Disables transmitter while maintaining receiver activity - prevents network disruption during MCU faults. |
| Zero-Load Bus Disengagement | Removes all loading from CANH/CANL when VCC = 0 V - eliminates parasitic bus leakage in sleep states. |
| AEC-Q100 Grade 1 Qualification | Validated for automotive use from −40 °C to +125 °C ambient, including thermal cycling and humidity testing. |
Applications
| Body Control Module (BCM) | Powertrain Control Unit (PCU) |
|---|---|
Use Scenario: Centralized vehicle subsystem management including lighting, door locks, and window controls. IC Role / Device Role / Timing Role: HS-CAN transceiver bridging 3.3 V microcontroller to 12 V CAN backbone. Use Value: VIO pin eliminates level shifters; Silent mode prevents single-node failure from halting entire BCM network. | Use Scenario: Real-time engine and transmission communication in gasoline/diesel powertrains. IC Role / Device Role / Timing Role: Physical layer interface for CAN FD fast-phase diagnostics and torque coordination messages. Use Value: 5 Mbit/s support enables sub-100 µs response times; ±58 V bus tolerance survives alternator load dump events. |
| Advanced Driver Assistance Systems (ADAS) Sensor Hub | Electric Vehicle Battery Management System (BMS) |
Use Scenario: Aggregating radar, camera, and ultrasonic sensor data over distributed CAN network. IC Role / Device Role / Timing Role: Robust transceiver with low EME for noise-sensitive analog sensor domains. Use Value: Slope-controlled drivers reduce radiated emissions; AEC-Q100 ensures reliability in safety-critical ADAS paths. | Use Scenario: Cell monitoring and pack-level communication across high-voltage battery stacks. IC Role / Device Role / Timing Role: Isolated CAN interface linking 3.3 V BMS MCU to 24 V traction battery CAN bus. Use Value: VIO pin enables 3.3 V logic compatibility; undervoltage detection prevents false wake-ups during low-battery conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed CAN transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TJA1042TK/3 | Lower ICC (1.5 mA typical in Normal mode); integrated wake-up via bus; no Silent mode pin. | Supports standby/wake-up architectures; lacks S-pin for active bus isolation. | Select when system requires bus-initiated wake-up and lower active current; avoid if Silent mode is mandatory. |
| MCP2551-I/P | Legacy 5 V-only design; no VIO pin; 1 Mbps max data rate; no CAN FD support. | Limited to classical CAN; incompatible with 3 V MCUs and CAN FD fast phase. | Use only for cost-sensitive legacy 1 Mbps designs; not suitable for CAN FD or mixed-voltage systems. |
Compared with TJA1051T/3,118, TJA1042TK/3 adds wake-up capability but removes Silent mode control, while MCP2551-I/P lacks VIO, CAN FD, and modern fault protection - making TJA1051T/3,118 the optimal choice for new 3 V–5 V, CAN FD-enabled automotive nodes requiring bus isolation.
Availability
TJA1051T/3,118 is available at Aetrix Electronics and suitable for automotive body control, powertrain communication, and ADAS sensor aggregation requiring stable component supply across extended temperature and voltage ranges.
Supply support for TJA1051T/3,118 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor company specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The TJA1051 belongs to NXP's third-generation high-speed CAN transceiver family, designed specifically for AEC-Q100-compliant automotive networks requiring robust EMC, extended bus fault tolerance, and mixed-voltage MCU interfacing.
FAQ
What is the maximum data rate supported by the TJA1051T/3,118?
The TJA1051T/3,118 supports data rates up to 5 Mbit/s in the CAN FD fast phase, as guaranteed by its ISO 11898-2:2016 compliance and timing specifications. This enables high-throughput diagnostics and firmware updates in modern automotive networks. The TJA1051T/3,118 achieves this with slope-controlled drivers that maintain signal integrity while minimizing electromagnetic emissions.
Does the TJA1051T/3,118 support 3 V microcontrollers?
Yes, the TJA1051T/3,118 supports 3 V microcontrollers via its dedicated VIO pin, which accepts 2.8 V to 5.5 V and sets the logic thresholds for TXD, RXD, and S pins. This eliminates the need for external level shifters when interfacing with 3 V or 3.3 V MCUs. The TJA1051T/3,118 maintains full functionality-including Silent mode and bus fault protection-across this VIO range.
What protection features does the TJA1051T/3,118 include for automotive environments?
The TJA1051T/3,118 includes ±58 V bus fault tolerance on CANH/CANL, ±8 kV HBM ESD protection, TXD dominant time-out (0.3–5 ms), undervoltage detection on VCC (3.5–4.5 V) and VIO (1.3–2.7 V), and thermal shutdown at 190 °C. These features are validated per AEC-Q100 Grade 1 and ensure reliable operation during load dump, jump-start, and ESD events. The TJA1051T/3,118 also disengages passively from the bus when unpowered.
How does Silent mode function on the TJA1051T/3,118?
Silent mode on the TJA1051T/3,118 is activated by driving pin S HIGH, which disables the transmitter while keeping the receiver fully operational. This allows the node to monitor bus traffic without transmitting, preventing a faulty MCU from disrupting network communication. The TJA1051T/3,118 maintains all receiver functions-including dominant/recessive detection and RXD output-in Silent mode, making it ideal for diagnostic and fail-safe applications.
Is the TJA1051T/3,118 qualified for automotive use?
Yes, the TJA1051T/3,118 is AEC-Q100 qualified (Grade 1) for automotive applications, with validation across temperature, humidity, vibration, and electrical stress tests. It operates over a virtual junction temperature range of −40 °C to +150 °C and is specified for 12 V and 24 V vehicle systems. The TJA1051T/3,118 meets ISO 11898-2:2016 and SAE J2284-1 to -5 standards, confirming its suitability for production automotive CAN networks.
TJA1051T/3,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Transceiver
- Protocol:
- CANbus
- Number of Drivers/Receivers:
- 1/1
- Duplex:
- Half
- Receiver Hysteresis:
- 120 mV
- Data Rate:
- 5Mbps
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
TJA1051T/3,118 FAQ
1.How can I place an order for TJA1051T/3,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for TJA1051T/3,118 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TJA1051T/3,118 reliable?
The price and inventory of TJA1051T/3,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TJA1051T/3,118 is usually 5 days.
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TJA1051T/3,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TJA1051T/3,118 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TJA1051T/3,118?
For technical support, including TJA1051T/3,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TJA1051T/3,118 requirements.
6.How does Aetrix verify that TJA1051T/3,118 is sourced from the original manufacturer or authorized distributors?
All TJA1051T/3,118 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TJA1051T/3,118 meets industry standards.
7.What is the process for return or replacement of TJA1051T/3,118?
All TJA1051T/3,118 units undergo pre-shipment inspection (PSI). If there is an issue with TJA1051T/3,118, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TJA1051T/3,118 part is unused and in its original packaging.
Return procedure for TJA1051T/3,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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