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Texas Instruments TCAN1044AVDRBRQ1
- Part No.:
- TCAN1044AVDRBRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
TCAN1044AVDRBRQ1.pdf
- Description:
- IC TRANSCEIVER HALF 1/1 8SON
- Quantity:
- Payment:
- Shipping:
Inventory:1,726
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Product details
Overview
TCAN1044AVDRBRQ1 from Texas Instruments is an AEC-Q100 Grade 0 qualified, fault-protected high-speed CAN FD transceiver supporting data rates up to 8 Mbps, 1.8-V I/O logic compatibility via VIO pin, ±58-V bus fault protection, and ISO 11898-2:2016 compliance - deployed in automotive body control modules and ADAS gateways.
For engineers reviewing the TCAN1044AVDRBRQ1 datasheet, TCAN1044AVDRBRQ1 pinout, TCAN1044AVDRBRQ1 application, or TCAN1044AVDRBRQ1 equivalent, this page delivers verified technical context, real-world timing margins, thermal shutdown behavior, standby wake-up capability, and validated alternative transceivers for automotive CAN FD system design.
Technical Context
The TCAN1044AVDRBRQ1 implements a fully differential ISO 11898-2:2016-compliant physical layer with integrated TXD-dominant time-out (DTO), thermal shutdown (TSD), and undervoltage detection on both VCC (4.2–4.4 V rising threshold) and VIO (1.56–1.65 V rising threshold). Its dual-supply architecture separates 5-V VCC for bus driver/receiver analog circuitry from 1.7–5.5-V VIO for digital I/O interfacing.
It supports three operational states: normal mode (full CAN FD operation at 2/5/8 Mbps), low-power standby mode with remote wake-up via ISO-defined WUP pattern, and unpowered hot-plug state where CANH/CANL/RXD present high-impedance behavior - ensuring no bus loading or glitching during power sequencing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | Up to 8 Mbps in simplified networks; certified for 5 Mbps per ISO 11898-2:2016 - enables CAN FD payload expansion without protocol stack changes. |
| Bus fault protection | ±58 V on CANH/CANL - withstands load dump and jump-start transients in 12-V/24-V automotive systems without external clamping. |
| VIO voltage range | 1.7 V to 5.5 V - directly interfaces 1.8-V microcontrollers without level shifters, reducing BOM count and layout complexity. |
| Propagation delay symmetry | tPROP(LOOP1): 125–255 ns; tPROP(LOOP2): 150–255 ns - tight timing margin supports reliable bit sampling at 5 Mbps with >20% sample point window. |
| Operating temperature | –40 °C to +150 °C ambient - meets Grade 0 AEC-Q100 requirements for under-hood and powertrain applications. |
| Standby current | 1.5 µA typical - enables always-on CAN wake-up functionality while minimizing battery drain in parked vehicle scenarios. |
| Common-mode range | ±12 V - ensures robust reception in electrically noisy environments such as motor drives and battery management systems. |
Pinout & Package
TCAN1044AVDRBRQ1 is available in an 8-pin SOIC (D) package measuring 4.90 mm × 3.91 mm, optimized for automotive PCB space constraints and thermal performance (RθJA = 127.5 °C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - TXD | Digital input | Logic-level transmit data from CAN controller; integrated pull-up eliminates external resistor; triggers DTO on sustained dominant state. |
| 2 - GND | Ground reference | Primary ground return for analog and digital sections; must be connected to low-impedance PCB plane to maintain EMC performance. |
| 3 - VCC | Power supply | 5-V supply for internal bus driver/receiver circuitry; UVLO threshold at 4.2 V rising ensures fail-safe shutdown before logic corruption. |
| 4 - RXD | Digital output | Logic-level receive data to CAN controller; tri-stated when VIO = 0 V - prevents back-driving of MCU I/O during power-down. |
| 5 - VIO | I/O supply | Configures logic voltage level (1.7–5.5 V); powers RXD output stage and TXD/STB input buffers - enables direct interface to 1.8-V MCUs. |
| 6 - CANL | Bus IO | Low-side differential CAN bus terminal; internally protected to ±58 V; forms 60-Ω differential pair with CANH for impedance-matched signaling. |
| 7 - CANH | Bus IO | High-side differential CAN bus terminal; matched to CANL for common-mode rejection; supports wake-up pattern detection in standby mode. |
| 8 - STB | Digital input | Standby mode control; pulled high internally; driven low for normal operation, high for standby with wake-up capability - no external pull required. |
Key Features
| Feature | Design Value |
|---|---|
| Grade 0 AEC-Q100 qualification | Validated for –40 °C to +150 °C operation - suitable for engine bay, transmission, and ADAS ECU deployments without derating. |
| TXD-dominant time-out (DTO) | 1.2–4.0 ms timeout prevents bus lockup from MCU firmware faults or PCB shorts - restores network communication automatically after fault clearance. |
| Hot-plug capable unpowered state | CANH/CANL/RXD present high-impedance when VCC/VIO = 0 V - allows safe insertion/removal in live CAN networks without bus disturbance. |
| Thermal shutdown (TSD) | Activates at 175–210 °C junction temperature with 12 °C hysteresis - protects against sustained overcurrent or ambient overheating in enclosed enclosures. |
| ISO 11898-2:2016 wake-up pattern support | Recognizes standardized WUP sequence in standby mode - enables low-power listening without continuous CPU wake-ups, extending battery life. |
Applications
| Body Control Module (BCM) | Automotive Gateway |
|---|---|
Use Scenario: Centralized control of lighting, door locks, windows, and HVAC across multiple vehicle domains. IC Role / Device Role / Timing Role: CAN FD transceiver bridging low-speed LIN peripherals and high-bandwidth infotainment via multi-channel gateway routing. Use Value: 8-Mbps FD capability enables faster firmware updates and sensor fusion data transfer between BCM and domain controllers without increasing bus arbitration overhead. |
Use Scenario: Aggregation and translation between CAN FD, CAN 2.0, LIN, and Ethernet domains in zonal architecture vehicles. IC Role / Device Role / Timing Role: High-integrity physical layer interface for critical safety-related messages between ADAS and powertrain ECUs. Use Value: ±58-V bus fault tolerance and Grade 0 thermal rating ensure uninterrupted gateway operation during load dump events in 48-V mild hybrid systems. |
| Advanced Driver Assistance System (ADAS) | Infotainment Head Unit |
Use Scenario: Real-time camera, radar, and ultrasonic sensor data aggregation in front radar ECU or surround-view controller. IC Role / Device Role / Timing Role: Low-latency, symmetrical propagation delay transceiver enabling deterministic timing for time-synchronized sensor fusion. Use Value: 125–255 ns loop delay and <14 ns pulse skew guarantee sub-bit jitter compliance for synchronized multi-node timestamping at 5 Mbps. |
Use Scenario: High-bandwidth audio/video streaming and OTA update delivery between head unit and telematics control unit (TCU). IC Role / Device Role / Timing Role: CAN FD physical layer supporting >2× payload size vs classical CAN - reduces frame count for large firmware images. Use Value: 1.8-V I/O support eliminates level-shifter ICs between 1.8-V application processors and CAN PHY, cutting board area and signal integrity risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CAN FD transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TCAN1042VDRBRQ1 | Lacks 1.8-V I/O support (VIO min = 2.7 V); identical 8-Mbps capability, ±58-V fault protection, and Grade 0 rating. | Not suitable for 1.8-V microcontroller interfaces; requires external level shifter if host MCU operates below 2.7 V. | Select when interfacing 3.3-V or 5-V controllers and cost optimization is prioritized over lowest-voltage I/O flexibility. |
| SN65HVD256DR | Classical CAN only (max 1 Mbps); no CAN FD support, no DTO, no TSD, and only AEC-Q100 Grade 1 (–40 °C to +125 °C). | Restricted to legacy CAN 2.0 networks; unsuitable for FD-based OTA, ADAS sensor fusion, or future-proof architectures. | Choose only for cost-sensitive, non-safety-critical body electronics where FD bandwidth and Grade 0 are unnecessary. |
Compared with TCAN1044AVDRBRQ1, TCAN1042VDRBRQ1 offers identical protection and speed but sacrifices 1.8-V compatibility, while SN65HVD256DR lacks FD, safety features, and high-temp operation - making TCAN1044AVDRBRQ1 the sole choice for new Grade 0 FD designs requiring 1.8-V MCU integration.
Availability
TCAN1044AVDRBRQ1 is available at Aetrix Electronics and suitable for automotive body control modules, ADAS gateways, and infotainment head units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TCAN1044AVDRBRQ1 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity solutions for automotive, industrial, and communications markets.
The TCAN1044AVDRBRQ1 belongs to TI's automotive-grade CAN FD transceiver portfolio, engineered specifically for functional safety-compliant, high-reliability vehicle networking in demanding under-hood and ADAS applications.
FAQ
What is the minimum data rate supported by TCAN1044AVDRBRQ1?
The TCAN1044AVDRBRQ1 supports down to 9.2 kbps, determined by its TXD-dominant time-out (DTO) period of 1.2 ms. This minimum rate ensures bus recovery after sustained dominant faults while maintaining full compatibility with classical CAN and CAN FD arbitration rules - critical for diagnostic and low-speed control messaging in TCAN1044AVDRBRQ1-based systems.
Does TCAN1044AVDRBRQ1 require external level shifters when interfacing with a 1.8-V microcontroller?
No. TCAN1044AVDRBRQ1 integrates an internal I/O level shifter powered by the VIO pin, which accepts 1.7–5.5 V - enabling direct connection to 1.8-V, 2.5-V, 3.3-V, or 5-V controllers. This eliminates external level shifters, reduces component count, and improves signal integrity in TCAN1044AVDRBRQ1 implementations.
How does TCAN1044AVDRBRQ1 handle undervoltage conditions on VCC and VIO?
TCAN1044AVDRBRQ1 features independent undervoltage lockout (UVLO) on both supplies: VCC UVLO activates at 4.2 V (rising) with 200-mV hysteresis, and VIO UVLO triggers at 1.56 V (rising) with 40-mV hysteresis. These thresholds force the device into protected mode - disabling driver output while preserving receiver bias - ensuring fail-safe behavior in TCAN1044AVDRBRQ1 automotive power systems.
Can TCAN1044AVDRBRQ1 operate in standby mode while maintaining wake-up capability?
Yes. When STB is driven high, TCAN1044AVDRBRQ1 enters low-power standby mode (1.5 µA typical ICC) and remains responsive to ISO 11898-2-defined wake-up patterns on the CAN bus. The integrated wake-up monitor detects valid WUP sequences without CPU intervention - a core feature of TCAN1044AVDRBRQ1 for always-on vehicle networking.
What protection features does TCAN1044AVDRBRQ1 include for automotive bus fault conditions?
TCAN1044AVDRBRQ1 provides ±58-V bus fault protection on CANH/CANL, thermal shutdown (175–210 °C), TXD-dominant time-out (1.2–4.0 ms), supply undervoltage detection, and short-circuit current limiting. These protections collectively prevent latch-up, thermal runaway, and bus lockup - meeting stringent reliability requirements for TCAN1044AVDRBRQ1 in 12-V/24-V automotive electrical environments.
TCAN1044AVDRBRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- 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:
- 200 mV
- Data Rate:
- 8Mbps
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 8-SON (3x3)
TCAN1044AVDRBRQ1 FAQ
1.How can I place an order for TCAN1044AVDRBRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TCAN1044AVDRBRQ1 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 TCAN1044AVDRBRQ1 reliable?
The price and inventory of TCAN1044AVDRBRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TCAN1044AVDRBRQ1 is usually 5 days.
3.What payment methods are accepted for TCAN1044AVDRBRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TCAN1044AVDRBRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TCAN1044AVDRBRQ1?
TCAN1044AVDRBRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TCAN1044AVDRBRQ1 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 TCAN1044AVDRBRQ1?
For technical support, including TCAN1044AVDRBRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TCAN1044AVDRBRQ1 requirements.
6.How does Aetrix verify that TCAN1044AVDRBRQ1 is sourced from the original manufacturer or authorized distributors?
All TCAN1044AVDRBRQ1 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 TCAN1044AVDRBRQ1 meets industry standards.
7.What is the process for return or replacement of TCAN1044AVDRBRQ1?
All TCAN1044AVDRBRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TCAN1044AVDRBRQ1, 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 TCAN1044AVDRBRQ1 part is unused and in its original packaging.
Return procedure for TCAN1044AVDRBRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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