TJA1044VT/3Z - 5Mbps VeLIO CAN Transceiver | NXP
MPN: TJA1044VT/3Z ✗ پایان تولیدTJA1044VT/3Z نمای کلی
A CAN transceiver is the physical-layer component between a digital controller and the CAN bus. It converts controller logic into a differential signal for transmission, converts bus differential voltage into logic levels for reception, and provides the interface robustness required by automotive networking. The TJA1044V belongs to NXP's Mantis family of high-speed CAN transceivers and is intended for CAN systems using 5 V transceiver supply rails.
The principal verified features of the TJA1044VT/3Z include operation up to 5 Mbps, standby-mode support, VeLIO certification, an automotive AEC-Q100 classification, and an 8-pin SO package. Standby operation lets a system reduce current consumption when communication is temporarily unnecessary, which is useful in vehicle electronics where sleep behavior and predictable power management affect the overall power budget. The automotive qualification indication makes the device relevant to body, chassis, powertrain-adjacent, and other vehicle-network designs that require an AEC-Q100-class CAN physical layer.
The device interfaces a CAN controller, commonly a microcontroller or dedicated CAN controller, to the CANH and CANL bus conductors. Differential signaling improves common-mode rejection and supports reliable communication over longer harnesses than a single-ended implementation. Designers must still account for bus topology, termination, common-mode voltage, ESD exposure, ground offsets, and the timing relationships among the transceiver, controller, and network. The manufacturer's datasheet is the controlling source for the exact pin functions, electrical limits, timing limits, and application circuit.
Typical uses include automotive body-control modules, powertrain controllers, gateway computers, comfort systems, diagnostic equipment, and other ECUs that communicate over a high-speed two-wire CAN network. It can also be considered for industrial or transportation systems only after confirming that the environmental, qualification, supply, and bus-performance requirements match the intended deployment. A 5 Mbps CAN link permits substantially more traffic than classic low-speed CAN while retaining the robustness and arbitration characteristics that make CAN common in vehicle networks.
For implementation, place the transceiver close to the CAN connector and route CANH and CANL as a differential pair with continuous reference planes and minimized stubs. Connect the bus termination network at the physical ends of the network, maintain the specified common-mode operating range, and provide the datasheet-recommended transceiver decoupling. Verify standby-entry and wake-up behavior in the system power state machine, and validate ESD, conducted-emissions, immunity, ground-offset, and fault-recovery behavior at the vehicle level.
This product page combines verified manufacturer and distributor information with lifecycle status, procurement guidance, application engineering context, and package-aware comparison data. It distinguishes verified specifications from parameters that require confirmation in the current NXP datasheet, helping engineers make sourcing and design decisions without treating undocumented assumptions as guaranteed facts.
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TJA1044GT/3Z
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TJA1044VT/3Z مشخصات
| Product Type | High-speed CAN transceiver |
| Maximum CAN Data Rate | 5 Mbps |
| Transceiver Supply Voltage | 5 V |
| Bus Interface | Two-wire differential CAN bus |
| Operating Mode | Normal and standby modes |
| Certification | VeLIO Certified |
| Automotive Qualification | AEC-Q100 |
| Product Family | Mantis high-speed CAN transceiver family |
| بسته‌بندی | 8-pin SO |
| Package Type | SOIC-8 |
| نوع نصب | Surface mount |
| تعداد پین‌ها | 8 pins |
| Transmit and Receive Capability | Differential transmit and differential receive |
راهنمای پیکربندی پین TJA1044VT/3Z soic-8
پیکربندی پین برای TJA1044VT/3Z (پکیج soic-8). شماره‌گذاری پایه‌ها، عملکردها و نمودارهای اتصال در دیتاشیت سازنده تعریف شده است. برای footprint دقیق و دستورالعمل‌های لحیم‌کاری به آن مراجعه کنید.
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کاربردهای معمول
TJA1044VT/3Z مناسب است برای 6 کاربردs: Automotive Body Control Module, Vehicle Gateway Controller, Powertrain and Chassis Network Interface, Automotive Comfort and Infotainment Module, Automotive Diagnostic Interface, Industrial Transportation CAN Equipment.
Automotive Body Control Module
The TJA1044VT/3Z fits an automotive body-control module that connects a CAN controller to a high-speed two-wire vehicle network. Its verified 5 Mbps capability, standby-mode support, VeLIO certification, AEC-Q100 classification, and 8-pin SO package align with compact electronic control units requiring a robust physical-layer interface. The transceiver converts controller logic into differential CANH and CANL signals and returns differential bus states to the controller. Place the device near the CAN connector, provide the manufacturer-recommended supply decoupling, and route CANH and CANL as a matched differential pair. Standby behavior should be coordinated with the module sleep sequence so that bus participation is disabled predictably without disrupting required diagnostic behavior.
Vehicle Gateway Controller
A vehicle gateway can use the TJA1044VT/3Z when it must bridge a controller to a high-speed CAN network. The device's verified 5 Mbps data-rate capability supports communication-intensive vehicle domains, while differential transmit and receive improve common-mode rejection on automotive harnesses. Its 8-pin SO package helps reduce board-space requirements compared with larger-outline alternatives, although footprint compatibility must always be verified against the selected PCB. Engineering validation should include bus termination, common-mode range, ESD exposure, ground offsets, radiated-emissions behavior, and fault recovery. Standby mode can reduce activity during defined power states, but the gateway controller must maintain valid protocol timing whenever the network remains active.
Powertrain and Chassis Network Interface
The TJA1044VT/3Z is applicable to CAN-based powertrain-adjacent or chassis electronic modules that require an automotive-qualified, 5 Mbps physical-layer interface. The verified AEC-Q100 classification is important for this use case, while VeLIO certification provides an additional automotive networking qualification signal. The transceiver sits between the embedded CAN controller and CANH/CANL, allowing the controller to exchange differential messages with other vehicle nodes. Because this environment can involve substantial electrical transients and ground offsets, engineers must validate the complete module against the applicable vehicle transient and immunity requirements. The 8-pin SO footprint simplifies integration, but decoupling, exposed-pin soldering, thermal performance, and exact pin assignment must follow the official package drawing.
Automotive Comfort and Infotainment Module
Comfort and infotainment controllers benefit from the TJA1044VT/3Z when they connect to a high-speed CAN domain carrying door, lighting, climate, or multimedia status information. Its 5 Mbps capability provides useful bandwidth headroom, and standby mode supports systems that periodically reduce transceiver activity. The 8-pin SO package is suitable for compact controller boards, but placement should prioritize short differential routing between the transceiver and the protection network or connector. Preserve a continuous ground reference, avoid splitting the CANH/CANL pair around unrelated circuitry, and confirm that the bus topology supports the intended node count and cable length. VeLIO certification and the AEC-Q100 classification strengthen suitability for qualified vehicle networking designs.
Automotive Diagnostic Interface
The TJA1044VT/3Z can serve as the physical-layer element in an automotive diagnostic or service interface that connects a controller to a high-speed CAN bus. Differential CAN communication is appropriate for vehicle environments where noise and ground differences can affect single-ended signaling. The transceiver's verified 5 Mbps rate and standby mode allow the interface module to balance diagnostic throughput against inactive-state power consumption. During implementation, maintain correct termination at the physical network ends rather than at every node, and route the differential pair away from high-current switching nodes. Diagnostic designs should also test bus-fault, short-circuit, open-bus, and recovery behavior under the intended vehicle transient environment. Exact diagnostic-function support must be confirmed in the NXP datasheet.
Industrial Transportation CAN Equipment
The TJA1044VT/3Z may be considered for rail, heavy-vehicle, or industrial transportation equipment that uses a high-speed two-wire CAN network and requires the device's 5 V, 5 Mbps, standby-enabled interface. Its automotive-oriented AEC-Q100 classification and VeLIO certification make it especially relevant where vehicle-like environmental and EMC conditions are expected. The 8-pin SO package supports compact controller assemblies. Deployment still requires a system-level assessment of temperature, vibration, surge exposure, grounding, bus topology, and functional safety obligations. Because the supplied information does not include every operating limit, engineers should verify the current NXP datasheet for those requirements. Standby and wake-up timing must also be validated with the equipment controller and network power architecture.
داده‌های مرجع مهندسی برای TJA1044VT/3Z — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | TJA1044GT/3Z |
|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors |
| Product Type | High-speed CAN transceiver | High-speed CAN transceiver candidate |
تفاوت‌های کلیدی
- Verified high-speed CAN capability (در مقابلTJA1044GT/3Z)
- VeLIO-certified automotive positioning (در مقابلTJA1044GT/3Z)
- Automotive qualification indication (در مقابلTJA1044GT/3Z)
- Verified standby functionality (در مقابلTJA1044GT/3Z)
یادداشت‌های طراحی
Route CANH and CANL as a closely coupled differential pair from the TJA1044VT/3Z toward the connector or protection network. Minimize stubs, avoid routing the pair across discontinuous reference-plane boundaries, and keep the pair away from switching power nodes and high-current motor or relay paths. Maintain the connector and transceiver ground connections through a low-impedance return. These layout practices reduce radiated emissions and improve the margin available for differential signaling on a 5 Mbps automotive CAN network.
Provide the manufacturer's recommended 5 V transceiver supply decoupling close to the device and verify the complete power tree for transient excursions, ground offsets, and automotive restart behavior. The supplied excerpts do not provide exact supply-current or capacitor values, so these must not be inferred from generic CAN designs. Check standby-entry current, wake-up behavior, and controller I/O thresholds in the complete power-state sequence. Stable local supply and a continuous ground reference are especially important when the CAN bus common-mode voltage can vary.
Do not assume that equal CAN data rate and an eight-pin footprint prove that an alternate part is a drop-in replacement. For TJA1044GT/3Z, verify every pin assignment, package drawing, standby-control implementation, electrical limit, timing parameter, and ordering suffix against the official NXP documents. Also confirm that the PCB supports the candidate's land pattern and exposed-terminal arrangement. A cross-reference result is a starting point for engineering review, not a substitute for schematic, footprint, and electrical compatibility checks.
Treat the connector-side CAN interface as part of the EMC design, not merely as an I/O route. Validate common-mode choke selection, ESD protection placement, bus termination, chassis or signal-ground strategy, and filtering against the vehicle module's emissions and immunity requirements. A 5 Mbps transceiver can expose interconnect discontinuities that are less important at slower CAN rates. Compliance claims should be based on the finished module and applicable test standard rather than inferred solely from the transceiver's AEC-Q100 classification.
اطلاعات انطباق
The supplied technical listing explicitly identifies the TJA1044VT/3Z as automotive AEC-Q100. RoHS, REACH, lead-free, halogen-free, and conflict-minerals status were not included in the provided excerpts and therefore remain unknown.
