TJA1042TK/3/1J - 5 Mbit/s CAN FD Transceiver | NXP
Teilenummer: TJA1042TK/3/1J ✓ AktivTJA1042TK/3/1J Übersicht
A CAN transceiver is an interface IC that converts logic-level signals from a CAN controller into the differential dominant and recessive states carried by a CAN bus. It also converts received bus states into signals the controller can interpret. The TJA1042 family belongs to the CAN transceiver hierarchy within interface ICs, semiconductors, and automotive communication electronics.
The TJA1042 supports reliable CAN and CAN FD communication up to 5 Mbit/s. Its Standby mode provides a low-power operating state, while the 3.3 V VIO connection supports communication with CAN controllers operating at that logic level. The manufacturer identifies improved electromagnetic compatibility and electrostatic-discharge performance as principal benefits of the family.
The TJA1042TK/3/1J ordering code identifies the 8-HVSON 3 mm by 3 mm package configuration and a 3.3 V VIO variant. The package offers a compact surface-mount implementation for automotive electronics, but its exposed-pad construction and limited thermal path require careful PCB layout. CAN bus traces should be routed as a controlled differential pair with appropriate termination and common-mode considerations.
Typical uses include automotive CAN FD gateways, body and comfort controllers, electric-vehicle subsystems, industrial CAN equipment, and battery-management systems with 3.3 V CAN controllers. The combination of 5 Mbit/s operation, CAN FD support, and Standby mode is useful where high communication bandwidth and reduced inactive-state consumption are both important.
Use the manufacturer pin-description table when assigning PCB tracks and land patterns, and confirm the controller voltage, bus termination, transceiver supply levels, and standby-control polarity before releasing a board layout. The small HVSON package also requires adequate copper around the thermal pad and controlled assembly-planarity conditions.
This page organizes the TJA1042TK/3/1J specifications, verified source links, application guidance, engineering design notes, and compatibility considerations to support faster component selection and PCB implementation.
Drop-in-Alternativen für TJA1042TK/3/1J – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Für dieses Produkt sind keine Drop-in-Alternativen verfügbar.
Alternativen anfordernTJA1042TK/3/1J Technische Daten
| Product Type | High-speed CAN transceiver with Standby mode |
| Maximum CAN Data Rate | 5 Mbit/s |
| Protocol Support | CAN and CAN FD |
| CAN Bus Type | Two-wire differential CAN bus |
| Transceiver Configuration | 1 transmit and 1 receive channel |
| VIO Minimum Voltage | 2.8 V |
| VCC Undervoltage Detection | 3.5 V |
| Supply Input | Single transceiver supply |
| Low-Power Mode | Standby mode |
| Interface Function | CAN protocol controller to physical CAN bus |
| Differential Signaling | Differential transmit and receive |
| Electromagnetic Compatibility | Improved EMC performance |
| Electrostatic Discharge Performance | Improved ESD performance |
| Target Market | Automotive applications |
| Gehäuse | 8-HVSON, 3 mm x 3 mm |
| Montageart | Surface mount |
TJA1042TK/3/1J 8-hvson, 3 mm x 3 mm Pinbelegungsleitfaden
Pinbelegung für TJA1042TK/3/1J (8-hvson, 3 mm x 3 mm-Gehäuse). Pin-Nummerierung, Funktionen und Anschlussdiagramme sind im Herstellerdatenblatt definiert. Entnehmen Sie diesem den genauen Footprint und Lötrichtlinien.
Keine detaillierten Pinbelegungsdaten verfügbar für TJA1042TK/3/1J.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
TJA1042TK/3/1J ist geeignet für 6 Anwendungs: Automotive CAN FD Gateway, Electric Vehicle Power and Chassis Communication, Battery Management System Interface, Industrial CAN FD Controller, Body and Comfort Controller, CAN FD Diagnostic and Test Equipment.
Automotive CAN FD Gateway
The TJA1042TK/3/1J fits an automotive CAN FD gateway because it supports communication rates up to 5 Mbit/s while presenting a 2.8 V minimum VIO threshold for compatible 3.3 V controller-side signaling. Its differential transmit and receive functions connect the CAN controller to the physical two-wire bus, while Standby mode supports reduced activity when the gateway is idle. The 8-HVSON 3 mm by 3 mm package also helps preserve board area in a densely populated electronic control unit.
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Electric Vehicle Power and Chassis Communication
The TJA1042TK/3/1J is suitable for electric-vehicle subsystems that exchange control, status, and diagnostic information over CAN FD. Its 5 Mbit/s capability reduces transfer time compared with classical CAN while the differential bus interface supports reliable communication across vehicle networks. The compact HVSON package is valuable in battery-management, inverter-control, and onboard-unit assemblies, although production designs must validate EMC immunity, transient tolerance, grounding, and the required automotive qualification for the exact ordering code.
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Battery Management System Interface
The TJA1042TK/3/1J can connect a battery-management controller to a vehicle-wide CAN FD network when rapid pack-status exchange and diagnostic communication are required. The 5 Mbit/s data rate supports efficient transfer of cell measurements, pack state, and fault information, while Standby mode offers a low-power operating option during inactive periods. Its small 8-HVSON footprint simplifies dense battery-monitoring boards, but bus-common-mode voltage, isolation strategy, ground offsets, and wake-up behavior must be evaluated against the battery system.
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Industrial CAN FD Controller
The TJA1042TK/3/1J fits industrial controllers that need higher CAN FD throughput than classical CAN networks provide. A rate of up to 5 Mbit/s can shorten transfer time for machine-control data, diagnostics, and configuration traffic. The transceiver’s 3.3 V VIO interface supports compatible digital controllers, and Standby mode can reduce consumption when the controller is not communicating. Industrial implementations should still verify environmental limits, isolation requirements, bus length, termination values, and system EMC performance.
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Body and Comfort Controller
The TJA1042TK/3/1J is appropriate for body and comfort modules that exchange switch, door, climate, and diagnostic information over a CAN network. Compact packaging helps fit these controllers into constrained electronic modules, while differential transmit and receive provide the physical interface required by the two-wire bus. When CAN FD payloads and higher data rates are not required, a lower-speed device may be sufficient; otherwise, the 5 Mbit/s capability gives the module additional bandwidth without changing the fundamental controller-to-bus architecture.
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CAN FD Diagnostic and Test Equipment
The TJA1042TK/3/1J can serve as the physical-layer endpoint in diagnostic or test equipment that must communicate with a CAN FD bus at rates up to 5 Mbit/s. Its differential receive path supports decoding bus activity while the transmit path supports active requests and test frames. Standby mode is useful in portable or intermittent test systems where the interface must not dominate idle power. Probe protection, galvanic isolation, ground-fault handling, bus termination, and high-speed signal-integrity validation remain important system-level design tasks.
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Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für TJA1042TK/3/1J – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt |
|---|---|
| Product Type | High-speed CAN transceiver with Standby mode |
| Package | 8-HVSON, 3 mm x 3 mm |
| Brand | NXP Semiconductors |
| Maximum Data Rate | 5 Mbit/s |
| Protocol Support | CAN and CAN FD |
| Minimum VIO Voltage | 2.8 V |
| VCC Undervoltage Detection | 3.5 V |
| Transmit and Receive Channels | 1 transmit and 1 receive |
| Low-Power Mode | Standby mode |
| EMC and ESD Features | Improved EMC and ESD performance |
Wichtigste Unterscheidungsmerkmale
- Higher communication rate than classical-CAN-focused alternatives (vs. TJA1057GTKZ)
- Lower VIO operating threshold (vs. TCAN1042H)
- Different supply undervoltage threshold (vs. TCAN1042H)
Designhinweise
Use the manufacturer HVSON land pattern and the exact exposed-pad connection shown in the TJA1042 datasheet. Place the transceiver close to the CAN controller and the CANH/CANL entry point to minimize trace area and sensitivity to common-mode interference. Keep the CAN bus differential pair symmetrical, provide the specified termination network, and maintain a continuous ground reference beneath the interface. Confirm assembly-planarity and reflow-profile requirements for the small 3 mm by 3 mm package.
Decouple the transceiver supply with the capacitance and placement specified by NXP, keeping the high-frequency return current within a compact loop. Account for the 2.8 V minimum VIO level and 3.5 V VCC undervoltage threshold when selecting a controller supply or evaluating another transceiver. Ensure the power source can support normal transmit current without causing droop that disturbs the CAN controller. Standby behavior should be checked against system sleep requirements rather than assumed to provide a fixed current reduction.
CANH and CANL must be routed as a controlled differential pair with consistent geometry, minimal stubs, and the bus termination placed according to the system topology. Avoid discontinuities beneath the transceiver, test points, and connector transitions. For 5 Mbit/s operation, assess rise time, reflections, common-mode margin, propagation delay, and radiated emissions in addition to nominal data rate. Use the manufacturer application information to select split termination and optional filtering only when the network topology requires them.
Do not approve a replacement by package appearance alone. Verify every pin function, the VIO threshold, the VCC undervoltage level, standby polarity, dominant-state output behavior, bus-receiver thresholds, and CAN FD timing. The TJA1042TK/3/1J is specifically associated with the compact 8-HVSON configuration, while other TJA1042 ordering codes may use different physical packages. Validate the complete manufacturer ordering code against the schematic, PCB footprint, BOM, and assembly instructions.
Compliance-Informationen
Compliance and qualification declarations for the complete TJA1042TK/3/1J ordering code require confirmation from current NXP product documentation.
