TJA1044VT/3Z
TJA1044VT/3Z - 5Mbps VeLIO CAN Transceiver | NXP
NXP Semiconductors TJA1044VT/3Z is a VeLIO-certified, 5 Mbps high-speed CAN transceiver for automotive applications, with standby mode and a 5 V supply in an 8-pin SO package. It provides the physical-layer interface between a CAN protocol controller and a two-wire CAN bus, combining differential transmit, differential receive, bus protection, and low-power standby operation in one device.
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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