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NXP Semiconductors TJA1051T/E,118
- Part No.:
- TJA1051T/E,118
- Manufacturer:
- NXP Semiconductors
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TJA1051T/E,118.pdf
- Description:
- IC TRANSCEIVER HALF 1/1 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:14,921
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Product details
Overview
TJA1051T/E,118 from NXP Semiconductors is a high-speed CAN transceiver implementing ISO 11898-2:2016 and SAE J2284-1 to -5 for automotive HS-CAN networks. It provides differential transmit/receive capability between a microcontroller's CAN controller and the two-wire physical bus, supports up to 5 Mbit/s in CAN FD fast phase, features EN pin for Off mode control, and operates across 12 V/24 V systems with AEC-Q100 qualification.
For engineers reviewing the TJA1051T/E,118 datasheet, TJA1051T/E,118 pinout, TJA1051T/E,118 application, or TJA1051T/E,118 equivalent, this page delivers verified electrical parameters, SO8 package mapping, EN-controlled low-power operation, fail-safe timing behavior, and validated automotive-grade alternatives - all confirmed against NXP's Rev. 9 product data sheet (28 Nov 2017).
Technical Context
The TJA1051T/E implements the full CAN physical layer per ISO 11898-2:2016, enabling reliable CAN FD communication at up to 5 Mbit/s. Its driver includes slope control for EME reduction, TXD dominant time-out (0.3–5 ms), and undervoltage detection on VCC (3.5–4.5 V) and VIO (1.3–2.7 V).
It supports three operating modes: Normal (TX/RX active), Silent (transmit disabled, RX active), and Off (EN = LOW, full shutdown with floating bus pins). Thermal protection disables drivers above 190 °C virtual junction temperature, and internal pull-downs on S and EN ensure defined states during microcontroller reset.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bus Data Rate | Up to 5 Mbit/s in CAN FD fast phase - enables high-throughput diagnostics and firmware updates in modern ECUs. |
| Supply Voltage (VCC) | 4.5 V to 5.5 V - compatible with standard 5 V automotive power rails and robust against battery transients. |
| Off Mode Current | 1–8 µA (EN = LOW) - allows microcontroller to cut transceiver power without bus loading during sleep. |
| ESD Protection | ±8 kV HBM/IEC 61000-4-2 on CANH/CANL - meets stringent automotive EMC requirements without external TVS. |
| Bus Fault Tolerance | −58 V to +58 V on CANH/CANL - survives load dump, jump-start, and reverse-battery conditions in 12 V/24 V systems. |
| Operating Temperature | −40 °C to +150 °C virtual junction - qualified for under-hood and transmission-control applications. |
| TXD Time-Out | 0.3–5 ms dominant timeout - prevents bus lockup due to MCU hang or software fault, ensuring network resilience. |
Pinout & Package
Package: SO8 (SOT96-1), plastic small outline, 8 leads, 3.9 mm body width, RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - TXD | Transmit Data Input | CMOS-level input from MCU CAN controller; internal pull-up to VIO ensures HIGH default if unconnected. |
| 2 - GND | Ground Reference | Primary ground return for VCC, VIO, and bus driver; must be low-impedance connection for EMC stability. |
| 3 - VCC | Main Supply Input | 5 V nominal supply; undervoltage detection (3.5–4.5 V) triggers automatic bus disengagement. |
| 4 - RXD | Receive Data Output | CMOS-level output to MCU; active in Normal and Silent modes; recessive = HIGH, dominant = LOW. |
| 5 - EN | Enable Control Input | Active-low enable; LOW forces full Off mode (floating bus, ~5 µA ICC); internal pull-down ensures safe default. |
| 6 - CANL | CAN Bus Low Line | Differential bus terminal; withstands −58 V to +58 V; short-circuit current limited to ±100 mA. |
| 7 - CANH | CAN Bus High Line | Differential bus terminal; symmetric voltage swing with CANL ensures robust common-mode rejection. |
| 8 - S | Silent Mode Control | Active-high input; HIGH disables transmitter only while preserving receiver operation and bus monitoring. |
Key Features
| Feature | Design Value |
|---|---|
| ISO 11898-2:2016 Compliance | Guarantees interoperability with all HS-CAN nodes in automotive networks, including CAN FD fast-phase timing. |
| EN-Controlled Off Mode | Reduces system standby current by disabling entire transceiver while keeping MCU in low-power state. |
| TXD Dominant Time-Out | Hardware-enforced 0.3–5 ms limit prevents permanent bus dominance - eliminates need for software watchdog on TX path. |
| Passive Bus Behavior at VCC = 0 | Zero load on CANH/CANL when unpowered - enables hot-plug capability and safe integration into powered bus segments. |
| AEC-Q100 Grade 0 Qualification | Validated for −40 °C to +150 °C operation - suitable for engine control, transmission, and ADAS domain controllers. |
Applications
| Body Control Module (BCM) | Powertrain Control Unit (PCU) |
|---|---|
|
Use Scenario: Centralized vehicle functions including door locks, lighting, window lift, and climate control. IC Role / Device Role / Timing Role: HS-CAN transceiver interfacing MCU to main vehicle backbone; handles diagnostic requests and sensor data aggregation at up to 500 kbit/s. Use Value: Silent mode allows BCM to monitor bus traffic without transmitting - critical for fault isolation during intermittent network issues. |
Use Scenario: Real-time coordination of engine timing, fuel injection, and exhaust aftertreatment in gasoline/diesel powertrains. IC Role / Device Role / Timing Role: Physical layer interface between powertrain MCU and HS-CAN backbone; supports CAN FD for high-bandwidth calibration data transfer. Use Value: ±58 V bus tolerance and −40 °C to +150 °C operation ensure reliability during cold cranking and under-hood thermal stress. |
| Advanced Driver Assistance Systems (ADAS) Sensor Hub | Electric Vehicle Battery Management System (BMS) |
|
Use Scenario: Aggregation and preprocessing of radar, camera, and ultrasonic sensor data before forwarding to central ADAS ECU. IC Role / Device Role / Timing Role: HS-CAN node transceiver enabling deterministic sensor fusion messaging with <65 ns RXD delay and <250 ns TXD-to-RXD propagation. Use Value: Low EME and high EMI immunity prevent RF interference from degrading millimeter-wave radar signal integrity. |
Use Scenario: Communication between cell monitoring ICs, pack controllers, and vehicle gateway in high-voltage EV battery packs. IC Role / Device Role / Timing Role: Isolated CAN interface (with external isolator) linking BMS slave boards to master controller over 2 m twisted-pair harness. Use Value: Off mode (via EN) cuts transceiver leakage to <8 µA during deep sleep - extends battery monitoring uptime between charges. |
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 |
|---|---|---|---|
| TJA1042T/3 | Includes wake-up capability via bus; higher VIO range (1.65–5.5 V); no EN pin; same SO8 package. | Required where node must wake from sleep on bus activity (e.g., gateway modules); not drop-in for EN-driven power sequencing. | Select TJA1042T/3 only if bus wake-up is mandatory; otherwise TJA1051T/E,118 offers simpler control and lower Off current. |
| MCP2551-I/P | Legacy 5 V-only design; no VIO/EN pins; ±25 V bus tolerance; 1 Mbps max; DIP-8 package. | Limited to legacy 1 Mbps CAN networks; incompatible with CAN FD; unsuitable for 24 V or high-temp automotive use. | Use MCP2551-I/P only for cost-sensitive non-automotive prototypes; avoid for new AEC-Q100 designs or CAN FD migration. |
Compared with TJA1042T/3, the TJA1051T/E,118 trades bus wake-up for lower Off-mode current and simplified enable logic; compared with MCP2551-I/P, it delivers CAN FD readiness, extended voltage/temperature range, and automotive qualification - making it the optimal choice for new ECU designs requiring 5 Mbit/s and AEC-Q100 compliance.
Availability
TJA1051T/E,118 is available at Aetrix Electronics and suitable for Body Control Modules, Powertrain ECUs, ADAS sensor hubs, and EV battery management systems requiring stable component supply, automotive-grade lifecycle assurance, and full CAN FD physical layer support.
Supply support for TJA1051T/E,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 leader focused on automotive, industrial, and IoT applications, with deep expertise in secure connectivity and embedded processing.
The TJA1051 belongs to NXP's third-generation high-speed CAN transceiver family, designed specifically for automotive HS-CAN networks requiring robust EMC, extended bus fault tolerance, and seamless CAN FD adoption - replacing legacy devices like TJA1050 with enhanced reliability and feature set.
FAQ
What is the primary function of the EN pin on the TJA1051T/E,118?
The EN (Enable) pin on the TJA1051T/E,118 is an active-low input that places the transceiver into a very low-current Off mode when driven LOW. In this state, the entire device is disabled, CANH and CANL go floating, and supply current drops to 1–8 µA. This allows the host microcontroller to eliminate transceiver power consumption during system sleep without affecting bus integrity - a key advantage over transceivers lacking dedicated enable control. The TJA1051T/E,118 uses this pin exclusively; other variants (e.g., TJA1051T/3) replace it with VIO.
Does the TJA1051T/E,118 support CAN FD, and what is its maximum data rate?
Yes, the TJA1051T/E,118 fully supports CAN FD physical layer operation per ISO 11898-2:2016 and SAE J2284-1 to -5, enabling reliable communication in the CAN FD fast phase at up to 5 Mbit/s. This capability is hardware-guaranteed and does not require configuration - the transceiver automatically adapts to bit rates within its specified timing window (e.g., tbit(bus) = 155–530 ns). The TJA1051T/E,118 achieves this while maintaining backward compatibility with classical CAN 2.0B at 1 Mbps, making it suitable for both legacy and next-generation automotive networks.
How does the TJA1051T/E,118 handle undervoltage conditions on VCC and VIO?
The TJA1051T/E,118 incorporates independent undervoltage detection circuits on both VCC and VIO pins. When VCC falls below 3.5–4.5 V or VIO drops below 1.3–2.7 V, the transceiver automatically disengages from the CAN bus (zero load) and suspends operation until supply voltages recover. This prevents erratic bus behavior during brownout or startup sequences. Notably, the TJA1051T/E,118 internally connects VIO to VCC (no external VIO required), simplifying design versus VIO-equipped variants - but the detection thresholds remain active and validated per AEC-Q100 stress testing.
What package type is used for the TJA1051T/E,118, and is it RoHS-compliant?
The TJA1051T/E,118 is supplied in the SO8 package (SOT96-1): plastic small outline, 8 leads, 3.9 mm body width, with lead finish optimized for reflow soldering. It is fully RoHS-compliant and halogen-free ("Dark Green" product), meeting EU Directive 2011/65/EU and IEC 61249-2-21. The package supports standard PCB assembly processes including lead-free reflow (peak 260 °C per J-STD-020D), and its thermal resistance (Rth(vj-a) = 155 K/W) is characterized for free-air conditions - critical for thermal design in compact ECU enclosures.
Can the TJA1051T/E,118 be used in 24 V commercial vehicle systems?
Yes, the TJA1051T/E,118 is explicitly rated for both 12 V and 24 V automotive systems. Its CANH/CANL pins tolerate −58 V to +58 V, covering worst-case transients such as load dump (ISO 7637-2 Pulse 5a), jump-start, and reverse-battery events common in heavy-duty trucks and buses. The device draws only 2.5–10 mA in Normal mode (bus recessive), and its AEC-Q100 Grade 0 qualification ensures operation from −40 °C to +150 °C virtual junction temperature - validating suitability for under-hood and chassis-mounted applications in 24 V commercial vehicles.
TJA1051T/E,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/E,118 FAQ
1.How can I place an order for TJA1051T/E,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for TJA1051T/E,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/E,118 reliable?
The price and inventory of TJA1051T/E,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/E,118 is usually 5 days.
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TJA1051T/E,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TJA1051T/E,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/E,118?
For technical support, including TJA1051T/E,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TJA1051T/E,118 requirements.
6.How does Aetrix verify that TJA1051T/E,118 is sourced from the original manufacturer or authorized distributors?
All TJA1051T/E,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/E,118 meets industry standards.
7.What is the process for return or replacement of TJA1051T/E,118?
All TJA1051T/E,118 units undergo pre-shipment inspection (PSI). If there is an issue with TJA1051T/E,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/E,118 part is unused and in its original packaging.
Return procedure for TJA1051T/E,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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