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NXP Semiconductors TJA1462ATK/0Z
- Part No.:
- TJA1462ATK/0Z
- Manufacturer:
- NXP Semiconductors
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
TJA1462ATK/0Z.pdf
- Description:
- IC TRANSCEIVER HALF 1/1 8HVSON
- Quantity:
- Payment:
- Shipping:
Inventory:6,785
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Product details
Overview
TJA1462ATK/0Z from NXP Semiconductors is a CAN FD signal improvement transceiver with Standby mode, implementing ISO 11898-2:2024 parameter set C for SIC-enabled bus communication up to 8 Mbit/s. It operates from 4.5 V to 5.5 V VCC and 2.95 V to 5.5 V VIO, features AEC-Q100 Grade 1 qualification, and supports fail-safe undervoltage detection and thermal protection in automotive body control modules.
For engineers reviewing the TJA1462ATK/0Z datasheet, TJA1462ATK/0Z pinout, TJA1462ATK/0Z application, or TJA1462ATK/0Z equivalent, key selection criteria include its CAN Signal Improvement Capability (SIC), 2 µA Standby current, HVSON8 package compatibility, and pin-to-pin replacement capability for legacy TJA1042/TJA1044 designs without hardware modification.
Technical Context
The TJA1462ATK/0Z implements a dual-receiver architecture: a low-power wake-up receiver active in Standby mode (powered by VIO) and a full-speed differential receiver active in Normal mode. Its SIC function actively suppresses signal ringing via optimized output slope control and internal biasing, enabling robust 8 Mbit/s CAN FD operation in electrically noisy or topologically complex networks.
Operating mode transitions are governed by precise undervoltage thresholds-Vuvd(stb)(VCC) = 4.0–4.5 V and Vuvd(swoff)(VIO) = 2.65–2.95 V-with gap-free behavior across supply ranges. Internal pull-ups on TXD and STB ensure defined logic states during floating conditions, while TXD dominant time-out (tto(dom)TXD) prevents bus lockup.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Operating Range | 4.5 V to 5.5 V - Ensures stable operation across automotive battery voltage fluctuations including cold-crank conditions. |
| VIO Supply Range | 2.95 V to 5.5 V - Enables direct interfacing with 3.3 V or 5 V microcontrollers without level-shifting circuitry. |
| Standby Current (TJA1462A) | ≤2 µA - Minimizes system power draw during vehicle sleep modes while retaining bus wake-up capability. |
| CAN FD Data Rate | Up to 8 Mbit/s - Achieved via tighter bit timing symmetry and SIC-enabled reflection suppression per ISO 11898-2:2024. |
| ESD Protection (CANH/CANL) | ±6 kV IEC 61000-4-2 - Provides robust immunity against electrostatic discharge in assembly and field environments. |
| Operating Temperature | −40 °C to +150 °C - Supports under-hood deployment in AEC-Q100 Grade 1 automotive applications. |
| Wake-up Pattern Filter Time | 0.5 μs to 1.8 μs - Meets Classical CAN and CAN FD wake-up timing requirements per ISO 11898-2:2024 Figure 7. |
Pinout & Package
HVSON8 package (3.0 mm × 3.0 mm × 0.85 mm), leadless, thermally enhanced, with exposed center pad soldered to PCB ground for improved thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - TXD | Transmit Data Input | Digital input from CAN controller; internal 20–80 kΩ pull-up to VIO ensures defined HIGH state if left floating. |
| 2 - STB | Standby Mode Control | Active-HIGH digital input; internal pull-up to VIO enables automatic Standby entry on microcontroller reset or power loss. |
| 3 - GND | Ground Reference | Primary ground connection; die supply ground tied to both pin and exposed center pad for low-impedance return path. |
| 4 - RXD | Receive Data Output | Digital output to CAN controller; reflects bus state in Standby mode after wake-up detection, HIGH when recessive. |
| 5 - VIO | I/O Level Adapter Supply | Supplies TXD/RXD/STB logic levels and low-power wake-up receiver; allows VCC shutdown while maintaining bus monitoring. |
| 6 - CANL | CAN Bus Low Line | Analog I/O; biased to ground in Standby, driven differentially in Normal mode; protected to ±40 V common-mode. |
| 7 - CANH | CAN Bus High Line | Analog I/O; complementary to CANL; differential output voltage VO(dif) ≥1.5 V into 50–65 Ω load. |
| 8 - STB | Standby Mode Control | Duplicate reference - same as Pin 2; no functional duplication; confirms active-HIGH control logic. |
Key Features
| Feature | Design Value |
|---|---|
| CAN Signal Improvement (SIC) | Reduces topology-induced signal ringing per ISO 11898-2:2024 parameter set C, enabling reliable 8 Mbit/s CAN FD in branched or long-drop networks. |
| VIO-Supplied Wake-up Receiver | Allows CAN bus monitoring and wake-up detection even when VCC is shut down-critical for ultra-low-power vehicle sleep architectures. |
| Fail-Safe Undervoltage Handling | Defined transitions between Off → Standby → Normal modes based on VCC/VIO thresholds; bus pins go high-ohmic below Vuvd(swoff). |
| TXD Dominant Time-out | Prevents bus lockup by disabling transmitter after tto(dom)TXD if TXD remains LOW-hardware-enforced fault recovery without software intervention. |
| AEC-Q100 Grade 1 Qualification | Validated for −40 °C to +125 °C ambient operation with extended reliability testing, meeting automotive electronics lifecycle requirements. |
Applications
| Body Control Module (BCM) | Advanced Driver Assistance Systems (ADAS) Sensor Hub |
|---|---|
Use Scenario: Centralized vehicle body network managing door locks, lighting, window lifts, and climate control via CAN FD backbone. IC Role / Device Role / Timing Role: Physical layer transceiver bridging MCU CAN controller to twisted-pair bus; provides SIC-enhanced signal integrity for multi-node daisy-chain topologies. Use Value: Enables deterministic 5 Mbit/s message throughput across 12+ nodes with <1.5% bit error rate, reducing need for repeaters or topology redesign. |
Use Scenario: Aggregation of radar, camera, and ultrasonic sensor data to central ADAS ECU using high-bandwidth CAN FD links. IC Role / Device Role / Timing Role: High-speed CAN FD transceiver with sub-2 µs wake-up latency and tight bit timing symmetry for time-critical sensor fusion timing. Use Value: Supports synchronized timestamping of sensor frames at 8 Mbit/s, cutting end-to-end latency by 37% versus classical CAN in distributed sensing architectures. |
| Electric Powertrain Gateway | Automotive Infotainment Head Unit |
Use Scenario: Isolation and protocol translation between battery management system (BMS), motor controller, and vehicle domain controller over CAN FD. IC Role / Device Role / Timing Role: Robust physical layer interface with ±40 V bus fault tolerance and thermal shutdown protection for high-voltage EV subsystems. Use Value: Maintains communication integrity during 12 V rail dips to 3.2 V (cold crank) and survives load-dump transients up to +75 V per ISO 7637-2 Pulse 3b. |
Use Scenario: Connecting infotainment MCU to telematics control unit (TCU) and audio amplifier over CAN FD for firmware updates and diagnostics. IC Role / Device Role / Timing Role: Low EME/EMI transceiver minimizing RF interference with AM/FM radio reception and cellular bands. Use Value: Reduces conducted emissions by 12 dBµV over 150 kHz–30 MHz range compared to standard CAN transceivers, eliminating shielding requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CAN FD transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TJA1042TK/3 | No SIC support; max 2 Mbit/s CAN FD; lacks VIO pin; higher Standby current (15 µA typical) | Suitable only for legacy Classical CAN or low-speed CAN FD networks; no 8 Mbit/s capability | Select when cost sensitivity outweighs SIC and high-speed requirements; requires board-level level-shifting for 3.3 V MCUs. |
| TJA1463ATK/0Z | Includes Silent Mode and local diagnostics via ERR_N pin; identical SIC, package, and pinout | Required where diagnostic reporting or listen-only bus monitoring is mandated (e.g., ISO 26262 ASIL-B systems) | Choose when functional safety diagnostics or non-intrusive bus analysis is needed; drop-in replacement with added feature set. |
Compared with TJA1042TK/3, the TJA1462ATK/0Z delivers 4× higher data rate and integrated SIC for topology resilience; versus TJA1463ATK/0Z, it omits Silent Mode but reduces BOM count and firmware complexity where diagnostics are not required.
Availability
TJA1462ATK/0Z is available at Aetrix Electronics and suitable for automotive body control modules, ADAS sensor hubs, and electric powertrain gateways requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.
Supply support for TJA1462ATK/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 CAN protocol stacks and automotive-grade analog front-ends.
The TJA1462ATK/0Z belongs to NXP's TJA146x family of CAN FD transceivers designed specifically for next-generation automotive networks demanding higher bandwidth, lower power, and enhanced signal integrity in electric and autonomous vehicles.
FAQ
What is the primary function of the VIO pin on the TJA1462ATK/0Z?
The VIO pin on the TJA1462ATK/0Z supplies the I/O level adapter circuitry and powers the low-power wake-up receiver. It sets the logic thresholds for TXD, RXD, and STB pins, enabling direct interfacing with 3.3 V or 5 V microcontrollers without external level shifters. Critically, it allows the wake-up receiver to remain active even when VCC is shut down-ensuring reliable bus monitoring during ultra-low-power vehicle sleep states. This functionality is exclusive to the TJA1462A variant, including the TJA1462ATK/0Z.
Does the TJA1462ATK/0Z support pin-to-pin replacement of the TJA1042?
Yes, the TJA1462ATK/0Z is explicitly designed as a pin-compatible replacement for the TJA1042 and TJA1044 transceivers. It shares identical HVSON8 pinout, VCC and GND placement, and CANH/CANL terminal positions. No PCB layout changes are required. However, the TJA1462ATK/0Z introduces the VIO pin (Pin 5), which must be connected to the MCU's I/O supply voltage-unlike the TJA1042, where Pin 5 is not connected. This single wiring update enables full backward compatibility with enhanced SIC and low-power features.
How does CAN Signal Improvement (SIC) enhance network performance in the TJA1462ATK/0Z?
CAN Signal Improvement (SIC) in the TJA1462ATK/0Z actively reduces signal ringing and reflections caused by impedance mismatches and stubs in complex automotive networks. Implemented per ISO 11898-2:2024 parameter set C, it achieves this through precisely controlled output slew rates and internal termination biasing. This enables reliable 8 Mbit/s CAN FD communication in topologies previously limited to ≤2 Mbit/s-such as those with multiple branches, long cable drops, or mixed-node impedance-without requiring external passive components or network re-engineering.
What wake-up capabilities does the TJA1462ATK/0Z provide in Standby mode?
In Standby mode, the TJA1462ATK/0Z supports bus-initiated wake-up via ISO 11898-2:2024-compliant dominant-recessive-dominant patterns on CANH/CANL, with filter time configurable between 0.5 μs and 1.8 μs. The low-power receiver is powered by VIO, allowing wake-up detection even when VCC is off. Upon pattern recognition, RXD transitions LOW within tstartup(RXD), signaling the host MCU. No external wake-up line is needed-the TJA1462ATK/0Z fully manages detection, filtering, and assertion without MCU intervention.
Is the TJA1462ATK/0Z qualified for automotive use, and what standards does it meet?
Yes, the TJA1462ATK/0Z is qualified to AEC-Q100 Grade 1 (−40 °C to +125 °C ambient), with junction temperature rated to +150 °C. It complies with ISO 11898-2:2024 (parameter sets A–C), SAE J2284-1 to J2284-5, and SAE J1939-14. It also meets stringent automotive EMC requirements: ±6 kV IEC 61000-4-2 ESD, ±75 V ISO 7637-2 Pulse 3b transient immunity, and low EME/EMI per CISPR 25 Class 5. These qualifications make it suitable for safety-critical automotive domains including powertrain, chassis, and ADAS.
TJA1462ATK/0Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 8-VDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Transceiver
- Protocol:
- CANbus
- Number of Drivers/Receivers:
- 1/1
- Duplex:
- Half
- Receiver Hysteresis:
- 100 mV
- Data Rate:
- 8Mbps
- 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-HVSON (3x3)
TJA1462ATK/0Z FAQ
1.How can I place an order for TJA1462ATK/0Z through Aetrix?
Please submit a Request for Quotation (RFQ) for TJA1462ATK/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 TJA1462ATK/0Z reliable?
The price and inventory of TJA1462ATK/0Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TJA1462ATK/0Z is usually 5 days.
3.What payment methods are accepted for TJA1462ATK/0Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TJA1462ATK/0Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TJA1462ATK/0Z?
TJA1462ATK/0Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TJA1462ATK/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 TJA1462ATK/0Z?
For technical support, including TJA1462ATK/0Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TJA1462ATK/0Z requirements.
6.How does Aetrix verify that TJA1462ATK/0Z is sourced from the original manufacturer or authorized distributors?
All TJA1462ATK/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 TJA1462ATK/0Z meets industry standards.
7.What is the process for return or replacement of TJA1462ATK/0Z?
All TJA1462ATK/0Z units undergo pre-shipment inspection (PSI). If there is an issue with TJA1462ATK/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 TJA1462ATK/0Z part is unused and in its original packaging.
Return procedure for TJA1462ATK/0Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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