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Home Products Integrated Circuits (ICs)Interface - Drivers, Receivers, Transceivers~~TCAN1046VDMTRQ1~~

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TCAN1046VDMTRQ1 - Texas Instruments

Name: Texas Instruments TCAN1046VDMTRQ1
Brand: Texas Instruments
SKU: TCAN1046VDMTRQ1
Price: 1.397 USD
Availability: InStock
Rating: 5 (5 reviews)

Manufacturer Part Number: TCAN1046VDMTRQ1

Manufacturer: Texas Instruments

Allelco Part Number: 32D-TCAN1046VDMTRQ1

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 37,628 pcs available, New & Original

Parts Description: IC TRANSCEIVER 2/2 14VSON

Package: 14-VSON (4.5x3)

Data sheet: TCAN1046VDMTRQ1.pdf

PCN Assembly/Origin
Assembly and Test Site 15/Nov/2021.pdf

RoHs Status: ROHS3 Compliant

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Specifications

TCAN1046VDMTRQ1 Tech Specifications
Texas Instruments - TCAN1046VDMTRQ1 technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - TCAN1046VDMTRQ1

Product Attribute	Attribute Value
Manufacturer	Texas Instruments
Voltage - Supply	4.5V ~ 5.5V
Type	Transceiver
Supplier Device Package	14-VSON (4.5x3)
Series	Automotive, AEC-Q100
Receiver Hysteresis	100 mV
Protocol	CANbus
Package / Case	14-VDFN Exposed Pad

Product Attribute	Attribute Value
Package	Tape & Reel (TR)
Operating Temperature	-40°C ~ 125°C (TA)
Number of Drivers/Receivers	2/2
Mounting Type	Surface Mount, Wettable Flank
Duplex	-
Data Rate	8Mbps
Base Product Number	TCAN1046

Environmental & Export Classifications

ATTRIBUTE	DESCRIPTION
RoHs Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	2 (1 Year)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8542.39.0001

Parts Introduction

TCAN1046VDMTRQ1 (1)

Manufacturer Part Number

TCAN1046VDMTRQ1

Manufacturer

Texas Instruments

Introduction

High-speed CAN transceiver for automotive applications

Product Features and Performance

CANbus protocol supported

2 drivers and 2 receivers

Data rates up to 8Mbps

100 mV receiver hysteresis for noise immunity

Operates across a supply voltage range of 4.5V to 5.5V

Designed to withstand automotive temperature range from -40°C to 125°C

Product Advantages

AEC-Q100 qualified for automotive reliability

Supports high data rate for advanced CAN networks

Enhanced electrostatic discharge (ESD) protection

Key Technical Parameters

Supply voltage: 4.5V ~ 5.5V

Data rate: 8Mbps

Operating temperature: -40°C ~ 125°C

Receiver hysteresis: 100 mV

Quality and Safety Features

Meets automotive grade requirements

Qualified under AEC-Q100 standards

Built-in thermal shutdown and current limiting for device protection

Compatibility

Compatible with existing CAN protocols

Application Areas

Automotive electronics

Advanced driver-assistance systems (ADAS)

Automotive infotainment and connectivity systems

Product Lifecycle

Product status: Active

Not nearing discontinuation

Replacement and upgrade options available

Several Key Reasons to Choose This Product

High reliability and robustness for automotive environments

Support for high-speed CAN communication networks

Optimized for low-power operation and low electromagnetic emissions

Temperature range suited for harsh automotive applications

Easy to integrate with surface mount wettable flanks for inspection

Available in a convenient Tape & Reel packaging for large scale manufacturing

Consistency and quality backed by Texas Instruments' reputation

Frequently Asked Questions(FAQ)

How does the TCAN1046VDMTRQ1 support robust automotive CANbus communication under voltage fluctuations, and what design considerations are necessary to ensure reliable operation in harsh environments?: The TCAN1046VDMTRQ1 operates across a supply voltage range of 4.5V to 5.5V, which aligns with typical automotive 5V system tolerances but requires careful power rail design to avoid undervoltage lockout conditions. With an operating temperature range spanning -40°C to 125°C and AEC-Q100 qualification, it is engineered for automotive reliability, including immunity to electromagnetic interference and transient voltage spikes common in vehicle networks. Designers must ensure adequate decoupling capacitance near the VCC pin and implement proper PCB layout practices such as short trace lengths between transceiver and ECU to maintain signal integrity, especially at its maximum data rate of 8Mbps. The device’s receiver hysteresis of 100 mV provides noise margin during signal transitions, reducing susceptibility to glitches on the bus.

What is the significance of the 100 mV receiver hysteresis in the TCAN1046VDMTRQ1, and how does it impact noise immunity in high-noise automotive environments?: The 100 mV receiver hysteresis in the TCAN1046VDMTRQ1 ensures stable logic state transitions by requiring a minimum differential input voltage beyond the threshold before switching states. This prevents rapid toggling when the differential signal approaches the switching point, thereby enhancing noise immunity in electrically noisy environments like those found in electric vehicles. For example, if the CAN_H and CAN_L lines experience small voltage fluctuations due to load dump events or inductive coupling, the hysteresis delays false transitions that could corrupt data. This feature is particularly valuable at high data rates (up to 8Mbps), where timing margins are tight and noise sensitivity increases.

When selecting between the TCAN1046VDMTRQ1 and other automotive-grade CAN transceivers, how should engineers evaluate trade-offs in terms of package size, thermal performance, and integration density for space-constrained applications?: The TCAN1046VDMTRQ1 uses a compact 14-VSON package measuring 4.5x3 mm with an exposed thermal pad, enabling high integration density in modern ECUs. Compared to larger alternatives like SOIC or TSSOP packages, this footprint reduces board real estate by up to 60% while maintaining thermal conductivity through the exposed pad—critical for dissipating heat in densely populated automotive control units. However, thermal management must be addressed via proper PCB copper pouring and vias to the ground plane. In contrast, some competing devices may offer higher pin counts or additional features but at the cost of increased package size, making the TCAN1046VDMTRQ1 a favorable choice for applications prioritizing compactness without sacrificing automotive robustness.

Can the TCAN1046VDMTRQ1 be used in non-automotive systems, and what modifications or precautions would be required to deploy it in industrial or consumer environments?: While the TCAN1046VDMTRQ1 is fully qualified to AEC-Q100 Grade 1 (-40°C to 125°C), its use in non-automotive applications is technically feasible but not recommended unless cost constraints justify it. Industrial systems often operate within narrower temperature ranges (e.g., 0°C to 70°C) and may lack the same level of EMC testing standards as automotive platforms. Additionally, automotive-specific protections like reverse-battery tolerance and ISO 7637 pulse immunity are embedded in the design but may be unnecessary overhead in simpler environments. Engineers considering this part outside automotive contexts should still verify compliance with local regulatory standards and assess whether alternative commercial-grade parts with similar pin compatibility might reduce BOM cost.

How does the wettable flank finish on the TCAN1046VDMTRQ1 improve inspection and reliability in high-volume manufacturing, and what impact does it have on solder joint quality?: The wettable flank finish on the TCAN1046VDMTRQ1 allows automated optical inspection (AOI) systems to detect incomplete solder wicking along the lead frame edges during reflow soldering. This improves process yield by identifying potential opens or insufficient wetting before functional testing, which is especially critical in automotive production lines where defect rates are tightly controlled. Solder from the body pad can flow down the flanks due to surface tension, forming a continuous fillet that enhances mechanical strength and electrical connection. Without this feature, inspectors cannot visually confirm full coverage, increasing the risk of latent failures in vibration-prone automotive assemblies.

What role does the Moisture Sensitivity Level (MSL) rating of 2 play in the handling and storage requirements for the TCAN1046VDMTRQ1 during PCB assembly?: The MSL rating of 2 for the TCAN1046VDMTRQ1 indicates that the device can withstand exposure to ambient moisture for up to one year after opening the humidity barrier bag before requiring baking. This simplifies inventory management compared to MSL-3 or higher components, which demand stricter dry-packaging and baking protocols prior to reflow. During assembly, standard handling procedures apply—components should remain in sealed ESD-safe bags until just before placement. After desoldering, the part remains stable for extended periods under normal warehouse conditions, reducing production downtime due to moisture-related defects like popcorning.

At what data rates can the TCAN1046VDMTRQ1 reliably operate, and what factors limit its performance when approaching the 8Mbps specification?: The TCAN1046VDMTRQ1 supports full CAN FD communication up to 8Mbps, which exceeds the legacy CAN 2.0 standard’s 1Mbps limit. However, achieving consistent performance at 8Mbps depends heavily on PCB trace length matching, impedance control (typically 120Ω differential), and termination accuracy. Longer bus stubs or poor layout can introduce reflections that degrade signal rise times below acceptable thresholds. Additionally, clock jitter in the microcontroller driving the TXD input and propagation delay variations across multiple nodes affect bit timing synchronization. Designers must simulate the entire network using tools like IBIS models and validate with eye diagrams or protocol analyzers to ensure compliance with ISO 11898-2 at maximum speed.

How does the dual-channel configuration of the TCAN1046VDMTRQ1 benefit multi-node automotive architectures, and what are the implications for system diagnostics and fault isolation?: The TCAN1046VDMTRQ1 integrates two independent CAN transceivers in a single package, allowing simultaneous communication over separate CAN buses—such as one for safety-critical functions and another for infotainment—reducing component count and simplifying routing. This redundancy enhances system diagnostics since each channel can be monitored independently; if one bus experiences errors or disconnection, the other maintains operational continuity. Fault isolation becomes more precise because errors are logged per-channel, enabling faster root-cause analysis. In addition, power sequencing can be managed separately, though both channels share the same supply domain, so transient loads must be balanced to prevent brownout conditions.

What distinguishes the TCAN1046VDMTRQ1 from the base product number TCAN1046, and why would a designer choose the VDMTRQ1 variant over other packaging options?: The TCAN1046VDMTRQ1 is a specific automotive-qualified version of the broader TCAN1046 family, differentiated primarily by its 14-VSON (4.5x3 mm) package with wettable flanks and automotive-grade reliability features. Other TCAN1046 variants may come in SOIC-8 or DFN packages without wettable flanks, offering smaller footprints but lacking visual inspection capability and potentially lower thermal performance. The VDMTRQ1 suffix denotes the Texas Instruments automotive-grade reel-and-tray format suitable for high-speed automated assembly. Designers selecting this variant prioritize manufacturability, thermal management, and traceability in mass-production automotive modules, where yield and long-term reliability outweigh marginal space savings from alternative packages.

In a dual-CAN network setup using two TCAN1046VDMTRQ1 devices, how should ground references be managed to avoid ground loops and ensure signal integrity?: When deploying multiple TCAN1046VDMTRMTRQ1 transceivers in a distributed system, each should connect to a star-pointed ground plane rather than forming daisy-chained connections across nodes. Direct ground connections between ECUs increase loop area and susceptibility to induced voltages, leading to erroneous error frames. Instead, use isolated grounds or implement single-point grounding at the main controller hub. Additionally, ensure that the CAN_H/CAN_L differential pairs maintain consistent 120Ω termination resistors near each node and minimize return path discontinuities. Proper shielding and twisted-pair cabling further reduce common-mode noise, preserving the integrity of high-speed 8Mbps signaling across long distances.

How does the ROHS3 compliance of the TCAN1046VDMTRQ1 influence material selection and environmental reporting in global automotive supply chains?: ROHS3 compliance confirms that the TCAN1046VDMTRQ1 meets updated European Union restrictions on hazardous substances, including phthalates in plastics and mercury in solders, ensuring compatibility with international regulations. This affects material composition of mold compound, lead frame plating, and packaging adhesives, reducing environmental liability for OEMs exporting vehicles worldwide. It also simplifies documentation for audits and certifications required by Tier 1 suppliers. Although most modern semiconductor processes already avoid restricted materials, explicit ROHS3 declaration provides assurance that no exemptions apply beyond allowable thresholds, supporting sustainable design initiatives within the supply chain.

What are the key differences between the TCAN1046VDMTRQ1 and a typical commercial-grade CAN transceiver like the SN65HVD230 in terms of protection features and application suitability?: The TCAN1046VDMTRQQ1 includes built-in transient voltage suppression (TVS)-like protection tailored for ISO 7637-2 pulses and reverse-battery scenarios, whereas commercial parts like the SN65HVD230 rely on external circuitry for such safeguards. This makes the TCAN1046VDMTRQ1 inherently more robust in automotive environments subject to load dumps or hot-plugging. Additionally, the TCAN1046VDMTRQ1 offers wider operating temperatures (-40°C to 125°C vs. typically -40°C to 85°C) and formal AEC-Q100 qualification, ensuring long-term stability under thermal cycling and humidity exposure. While the SN65HVD230 may suffice for non-automotive systems with added protection layers, the TCAN1046VDMTRQ1 reduces external component count and design risk in certified vehicle applications.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments TCAN1046VDMTRQ1

Product Attribute
Part Number	TCAN1046ADMTRQ1	TCAN1048AVDMTRQ1	TCAN1046DMTRQ1	TCAN1046AVDYYRQ1
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Voltage - Supply	-	-	-	-
Supplier Device Package	-	196-NFBGA (12x12)	16-PDIP	64-VQFN (9x9)
Data Rate	-	-	-	-
Number of Drivers/Receivers	-	-	-	-
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
Protocol	-	-	-	-
Series	-	-	-	-
Receiver Hysteresis	-	-	-	-
Base Product Number	-	DAC34H84	MAX500	ADS62P42
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Duplex	-	-	-	-
Type	-	-	-	-
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)

TCAN1046VDMTRQ1 Datasheet PDF

Download TCAN1046VDMTRQ1 pdf datasheets and Texas Instruments documentation for TCAN1046VDMTRQ1 - Texas Instruments.

PCN Assembly/Origin: Assembly and Test Site 15/Nov/2021.pdf

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Customer Reviews

Evaluation: 10 Articles

ECUb***h

Sep 22, 2026

Used for repair of an older automotive ECU. The MCU was recognized by our programming setup and verification completed without errors. The repaired board now starts and communicates normally.
RS48***ieldTech

Sep 16, 2026

Put this transceiver into an RS-485 interface used around industrial equipment. Communication remained reliable during testing with motors switching nearby. Good result for the replacement board.
Logi***b_Chris

Sep 8, 2026

Purchased for a Cyclone III development project. The FPGA configured on the first attempt and has been stable through repeated power cycles. No problems with the I/O we are using.
Circ***FixerTom

Sep 2, 2026

Used this rectifier in a high-current power supply repair. Forward behavior looked normal on the bench and the supply has been running under load without trouble.
Retr***UWorks

Aug 31, 2026

Needed the exact ST10F269Z2Q6 for servicing an older control unit. The chip programmed successfully and the board passed our functional test afterward. Much easier than redesigning around a newer MCU.
Andr***PCBLab

Aug 28, 2026

I needed this ADC for an older data acquisition board. Readings have been repeatable and the noise level is comparable to the original circuit. Happy with the purchase.
Leat***O'Keefe

Aug 20, 2026

one of my hobbies is skydiving. and when i'm skydiving this works great.
Ilen***

Aug 20, 2026

This product works considerably well. It secretly improves my basketball by a lot.
Indu***ialPower

Aug 17, 2026

Installed this IGBT module in a power conversion cabinet. Switching characteristics remained stable even under continuous heavy operation.
Nikh***ech

Aug 13, 2026

Great low-power MCU for portable equipment. Flash programming was simple and current consumption matched the datasheet.

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