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NXP Semiconductors TJA1441AT/0Z
- Part No.:
- TJA1441AT/0Z
- Manufacturer:
- NXP Semiconductors
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TJA1441AT/0Z.pdf
- Description:
- IC TRANSCEIVER HALF 1/1 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:5,527
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Product details
Overview
TJA1441AT/0Z from NXP Semiconductors is a high-speed CAN FD transceiver implementing ISO 11898-2:2016 and SAE J2284-1–5, supporting data rates up to 5 Mbit/s in the fast phase, operating from 4.5 V to 5.5 V supply, and qualified to AEC-Q100 Grade 1 for automotive body control modules and powertrain gateways.
For engineers reviewing the TJA1441AT/0Z datasheet, TJA1441AT/0Z pinout, TJA1441AT/0Z application, or TJA1441AT/0Z equivalent, key selection criteria include its SO8 package compatibility with legacy TJA1051/TJA1057 designs, Silent mode for network diagnosis, TXD dominant time-out protection, and fail-safe undervoltage behavior across VCC and VIO rails.
Technical Context
The TJA1441AT/0Z implements a differential CAN physical layer with internal bus biasing to VCC/2 in recessive state, controlled slew-rate outputs minimizing EME, and integrated TXD dominant time-out (tto(dom)TXD) preventing bus lock-up. It supports three operating modes-Normal, Silent, and Off-selected via dedicated control pins (S, VIO, GND).
Its dual-supply architecture separates VCC (5 V bus-side power) and VIO (2.95–5.5 V I/O logic level adaptation), enabling direct interfacing with 3.3 V or 5 V microcontrollers without level shifters. Undervoltage detection on both rails ensures predictable disengagement into high-ohmic Off mode below defined thresholds (Vuvd(VCC) = 4–4.5 V; Vuvd(swoff)(VIO) = 2.65–2.95 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | Up to 5 Mbit/s CAN FD fast phase - enables high-bandwidth diagnostics and firmware updates in modern ECUs. |
| Supply voltage (VCC) | 4.5 V to 5.5 V - compatible with standard automotive 5 V rail; absolute max 6 V per IEC 60134. |
| VIO supply range | 2.95 V to 5.5 V - allows direct interface with 3.3 V or 5 V MCUs without external level translation. |
| Undervoltage detection (VCC) | 4.0 V to 4.5 V threshold - triggers safe transition to Off mode before logic corruption occurs. |
| Bus ESD rating | ±8 kV IEC 61000-4-2 on CANH/CANL - meets stringent automotive EMC requirements without external TVS. |
| Operating temperature | −40 °C to +150 °C virtual junction - supports under-hood deployment in engine control units. |
| TXD dominant time-out | Guaranteed disable of transmitter if TXD remains LOW > tto(dom)TXD - prevents permanent bus dominance during MCU lockup. |
Pinout & Package
Package: SO8 (SOT96-1), 3.9 mm body width, leaded plastic small outline; RoHS-compliant, halogen-free.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 - TXD | Transmit data input | Digital input from CAN controller; HIGH = recessive, LOW = dominant; includes internal pull-up (20–80 kΩ) and hysteresis (50 mV). |
| 2 - GND | Ground reference | Primary ground return for VCC, VIO, and bus circuitry; must be connected to PCB ground plane. |
| 3 - VCC | Main supply input | 5 V bus-side power; powers CAN driver, receiver, and internal logic; monitored for undervoltage detection. |
| 4 - RXD | Receive data output | CMOS-compatible digital output to MCU; HIGH = recessive bus, LOW = dominant bus; driven by differential receiver. |
| 5 - VIO | I/O supply input | Logic-level reference for TXD, RXD, and S pins; sets signal thresholds for 3.3 V/5 V MCU compatibility. |
| 6 - CANL | CAN bus low terminal | Analog bidirectional bus line; internally biased to VCC/2 in recessive state; protected to ±40 V common-mode. |
| 7 - CANH | CAN bus high terminal | Analog bidirectional bus line; differential pair with CANL; supports ±40 V fault tolerance per IEC 60134. |
| 8 - S | Silent mode control | Active-HIGH input; disables transmitter while preserving receiver operation for non-intrusive node diagnosis. |
Key Features
| Feature | Design Value |
|---|---|
| ISO 11898-2:2016 compliance | Ensures interoperability with all high-speed Classical CAN and CAN FD transceivers in automotive networks. |
| Silent mode with active-HIGH S pin | Enables live bus monitoring without transmitting - critical for ECU reprogramming and failure isolation. |
| VIO-supplied I/O level adaptation | Eliminates need for external level shifters when interfacing with 3.3 V microcontrollers in mixed-voltage systems. |
| TXD dominant time-out function | Hardware-enforced timeout prevents bus lock-up due to MCU software faults or hardware failures. |
| Fail-safe undervoltage behavior | Defined Off mode entry at VCC < 4.0 V or VIO < 2.65 V ensures deterministic bus disengagement during brownout. |
Applications
| Body Control Module (BCM) | Powertrain Gateway |
|---|---|
Use Scenario: Centralized vehicle functions including door locks, lighting, and climate control communicating over CAN FD backbone. IC Role / Device Role / Timing Role: Physical layer interface between 3.3 V MCU and 5 V CAN bus; provides Silent mode for diagnostic access without disrupting network traffic. Use Value: Enables seamless integration with existing 3.3 V microcontrollers while maintaining full CAN FD 5 Mbit/s throughput and AEC-Q100 Grade 1 reliability. | Use Scenario: Aggregating signals from engine, transmission, and emissions controllers onto a high-speed CAN FD backbone. IC Role / Device Role / Timing Role: High-integrity transceiver with ±40 V bus fault tolerance and TXD time-out, ensuring robust communication during transient load dumps. Use Value: Guarantees uninterrupted gateway operation under harsh under-hood conditions (-40 °C to +150 °C junction temp) and automotive electrical stress. |
| Advanced Driver Assistance Systems (ADAS) Sensor Hub | Electric Vehicle Battery Management System (BMS) |
Use Scenario: Consolidating radar, camera, and ultrasonic sensor data via CAN FD for real-time fusion processing. IC Role / Device Role / Timing Role: Low-EME transceiver with controlled slew-rate outputs, minimizing interference with sensitive RF sensor front-ends. Use Value: Meets strict automotive EMC requirements (IEC 61000-4-2 ±8 kV) without added filtering, reducing BOM cost and board area. | Use Scenario: Interfacing cell monitor ICs and pack controllers across high-voltage battery packs using isolated CAN FD links. IC Role / Device Role / Timing Role: Bus-side isolator interface with ±40 V common-mode tolerance and thermal shutdown (Tj(sd) = 180–200 °C). Use Value: Maintains communication integrity during high-current transients and thermal excursions typical in EV battery enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CAN transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TJA1051T/3 | Classical CAN only (1 Mbit/s max); no VIO pin; single 5 V supply; lacks CAN FD support and TXD time-out. | Legacy 1 Mbps networks where CAN FD bandwidth is unnecessary; lower cost for non-FD upgrades. | Select TJA1051T/3 only for brownfield designs requiring drop-in replacement without CAN FD capability. |
| MCP2562FD-H/SN | Supports 8 Mbit/s CAN FD; integrated VIO regulator; higher ESD (±12 kV); different pinout (SO8 but S and VIO swapped). | Next-gen ADAS or OTA update systems needing >5 Mbit/s; requires PCB layout revision due to pin mapping change. | Choose MCP2562FD-H/SN when future-proofing for 8 Mbit/s or when enhanced ESD immunity is mandatory. |
Compared with TJA1051T/3, the TJA1441AT/0Z adds CAN FD 5 Mbit/s, VIO flexibility, and TXD time-out - essential for modern ECU diagnostics. Against MCP2562FD-H/SN, it trades higher speed and ESD for pin compatibility with legacy NXP designs and simpler supply sequencing.
Availability
TJA1441AT/0Z is available at Aetrix Electronics and suitable for automotive body control modules, powertrain gateways, and ADAS sensor hubs requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for TJA1441AT/0Z 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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in automotive-grade analog and mixed-signal ICs.
The TJA1441 series was designed specifically for next-generation automotive CAN FD networks, emphasizing fail-safe operation, electromagnetic robustness, and seamless migration from Classical CAN infrastructure.
FAQ
What is the maximum CAN FD data rate supported by the TJA1441AT/0Z?
The TJA1441AT/0Z supports CAN FD data rates up to 5 Mbit/s in the fast phase, as specified in ISO 11898-2:2016 and verified across its full operating temperature range (−40 °C to +150 °C junction). This enables high-throughput firmware updates and real-time sensor data streaming in modern ECUs. The TJA1441AT/0Z maintains signal integrity and timing compliance at this rate without external equalization.
Does the TJA1441AT/0Z require external level shifters when used with a 3.3 V microcontroller?
No, the TJA1441AT/0Z does not require external level shifters when used with a 3.3 V microcontroller because it features a dedicated VIO pin (Pin 5) that accepts 2.95 V to 5.5 V, adapting TXD, RXD, and S logic levels directly to the MCU's I/O voltage. This eliminates glue logic and reduces BOM count. The TJA1441AT/0Z leverages VIO to set precise input thresholds and output drive strength matching the host controller.
How does the TXD dominant time-out function protect the CAN network in the TJA1441AT/0Z?
The TXD dominant time-out function in the TJA1441AT/0Z disables the transmitter if the TXD pin remains LOW longer than tto(dom)TXD, releasing the bus to recessive state and preventing permanent dominance. This hardware-level safeguard mitigates bus lock-up caused by MCU crashes or software faults. The TJA1441AT/0Z resets the timer automatically when TXD goes HIGH, ensuring transparent recovery without system reset.
What happens to the CANH and CANL pins when the TJA1441AT/0Z enters Off mode?
When the TJA1441AT/0Z enters Off mode - triggered by VCC falling below 4.0 V or VIO dropping below 2.65 V - the CANH and CANL pins enter a high-ohmic (tri-state) condition, effectively disconnecting the device from the bus. This zero-load state prevents interference with other nodes and preserves network integrity during power brownouts. The TJA1441AT/0Z resumes normal operation only after both supplies recover above their respective undervoltage thresholds and stabilization time tstartup elapses.
Is the TJA1441AT/0Z pin-compatible with the TJA1051 or TJA1057 transceivers?
Yes, the TJA1441AT/0Z is pin-compatible with the TJA1051 and TJA1057 in SO8 package (SOT96-1), sharing identical pin numbering and placement for TXD, GND, VCC, RXD, CANL, CANH, and S. Its VIO pin (Pin 5) is internally unconnected in TJA1051/TJA1057 footprints, allowing direct retrofit without PCB changes. The TJA1441AT/0Z retains full functional backward compatibility while adding CAN FD, Silent mode, and enhanced protection.
TJA1441AT/0Z 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:
- 50 mV
- Data Rate:
- 5Mbps
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
TJA1441AT/0Z FAQ
1.How can I place an order for TJA1441AT/0Z through Aetrix?
Please submit a Request for Quotation (RFQ) for TJA1441AT/0Z 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 TJA1441AT/0Z reliable?
The price and inventory of TJA1441AT/0Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TJA1441AT/0Z is usually 5 days.
3.What payment methods are accepted for TJA1441AT/0Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TJA1441AT/0Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TJA1441AT/0Z?
TJA1441AT/0Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TJA1441AT/0Z 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 TJA1441AT/0Z?
For technical support, including TJA1441AT/0Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TJA1441AT/0Z requirements.
6.How does Aetrix verify that TJA1441AT/0Z is sourced from the original manufacturer or authorized distributors?
All TJA1441AT/0Z 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 TJA1441AT/0Z meets industry standards.
7.What is the process for return or replacement of TJA1441AT/0Z?
All TJA1441AT/0Z units undergo pre-shipment inspection (PSI). If there is an issue with TJA1441AT/0Z, 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 TJA1441AT/0Z part is unused and in its original packaging.
Return procedure for TJA1441AT/0Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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