TJA1145ATK/FD/0Z - 5 Mbit/s CAN FD Partial Networking Transceiver | NXP
MPN: TJA1145ATK-FD-0Z β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
TJA1145ATK-FD-0Z Overview
A CAN (Controller Area Network) transceiver is a physical-layer device that converts the logic-level TX and RX signals of a CAN controller into the differential signals on the twisted-pair CAN bus. Within the automotive electronics hierarchy, it sits between the microcontroller CAN protocol controller and the bus lines, forming part of the broader in-vehicle networking interface family that includes LIN, FlexRay and Ethernet PHYs.
Key features include full ISO 11898-2 (2016) compliance, reliable communication in the CAN FD fast phase at data rates up to 5 Mbit/s, and a dedicated partial networking implementation with the 'FD-passive' function, which allows the node to ignore CAN FD frames while waiting for a valid wake-up pattern in Sleep or Standby mode. This dramatically reduces system-level quiescent current in parked vehicles.
The TJA1145A architecture integrates the transceiver, a system-basis chip function with sleep/standby/normal operating modes, local and bus wake-up recognition, and selective wake-up with CAN frame filtering. Supply voltage is specified from 4.5 V to 5.5 V, and the operating temperature range covers -40 C to +150 C, supporting under-hood and body-control deployments.
Typical applications include gateway modules, body control modules, telematics units and domain controllers in automobiles, where partial-networking wake-up and CAN FD bandwidth are both required. The /0Z ordering suffix denotes the lead-free, RoHS-compliant tape-and-reel packing option.
When designing with this device, always confirm pin-level compatibility before substituting other TJA1145 variants, because SO14 (T suffix) and HVSON (TK suffix) footprints differ.
This page synthesizes distributor availability, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for TJA1145ATK-FD-0Z β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
TJA1145TK/FD-0Z
β Drop-Inπ Reference alternative (not in catalog)
TJA1145TK/FDJ
β Drop-Inπ Reference alternative (not in catalog)
TJA1145ATK
β Drop-Inβ In Stock
$1.82 / Unit
View Datasheet βTJA1145ATK/FD
β Drop-Inπ Reference alternative (not in catalog)
TJA1145ATK-FD-0Z Specifications
| Product Type | High-speed CAN transceiver with partial networking |
| Protocol Support | CAN FD, data rates up to 5 Mbit/s |
| Standard Compliance | ISO 11898-2 (2016) |
| Transceiver Channels | 1/1 (Transceiver Half, CANbus) |
| Supply Voltage | 4.5 V to 5.5 V |
| Operating Temperature | -40 C to +150 C |
| Package | 14-HVSON (3x4.5 mm), exposed pad (14-VDFN exposed pad) |
| Mounting Type | Surface Mount |
| Partial Networking | Yes, with FD-passive function (ignores CAN FD frames while waiting for wake-up) |
| Wake-up Functions | Local wake-up and selective bus wake-up in Sleep/Standby mode |
| Packing Method | Tape & Reel |
| Ordering Suffix | /0Z (RoHS-compliant, lead-free finish) |
| Terminal Form | No Lead, HVSON, 14 terminals, rectangular |
| Data Rate | 5 Mbps (CAN FD fast phase) |
| Typical Application | Automotive high-speed CAN and CAN FD networking |
TJA1145ATK-FD-0Z 14-hvson (3x4.5 mm), exposed pad (14-vdfn exposed pad) Pin Configuration Guide
Pin configuration for TJA1145ATK-FD-0Z (14-hvson (3x4.5 mm), exposed pad (14-vdfn exposed pad) package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for TJA1145ATK-FD-0Z.
Refer to the datasheet for full pin configuration.
Typical Applications
TJA1145ATK-FD-0Z is suitable for 6 applications: Automotive Gateway Modules, Body Control Modules (BCM), Telematics and Connectivity Units, Domain Controllers and Zonal ECUs, Battery Management Systems (BMS), ADAS Sensor Nodes.
Automotive Gateway Modules
Gateway modules route traffic between multiple CAN, CAN FD and LIN networks in a vehicle, so the physical layer must handle both classical CAN at up to 1 Mbit/s and CAN FD fast-phase data at up to 5 Mbit/s. The TJA1145ATK/FD/0Z is fully compliant with ISO 11898-2 (2016) and guarantees reliable communication in the CAN FD fast phase, making it a natural fit for gateway CAN channels. Its selective wake-up with FD-passive filtering lets the gateway stay in Sleep mode while ignoring CAN FD frames, waking only on a valid wake-up pattern, which is essential for meeting vehicle-level quiescent current budgets in parked vehicles. Operating from a 4.5 V to 5.5 V rail and rated -40 C to +150 C, it tolerates under-hood and passenger-compartment conditions alike.
Recommended
Body Control Modules (BCM)
Body control modules must remain network-addressable while the vehicle is parked, yet draw microamp-level current. The TJA1145ATK/FD/0Z addresses this directly: in Sleep or Standby mode it monitors the bus for a valid wake-up frame and, thanks to the FD-passive function documented in the NXP TJA1145 datasheet, ignores CAN FD frames that would otherwise cause spurious wake-ups. Local wake-up capability supports direct switch inputs on the same pin set. The device interfaces a microcontroller's CAN protocol controller to the two-wire bus differentially, and its 14-pin HVSON (3x4.5 mm) exposed-pad package conserves PCB area in the densely populated BCM board. Supply operation from 4.5 V to 5.5 V matches the automotive 5 V rail with clamp-and-fail-safe behavior on the bus pins.
Recommended
Telematics and Connectivity Units
Telematics control units (TCUs) bridge the vehicle CAN/CAN FD network to cellular connectivity and must support over-the-air wake-up of sleeping ECUs. A TCU CAN channel built on the TJA1145ATK/FD/0Z can transmit selective wake-up frames to partial-networking nodes while itself sleeping between sessions; the FD-passive function ensures CAN FD background traffic at up to 5 Mbit/s does not wake the node unnecessarily. The transceiver's ISO 11898-2 (2016) compliance guarantees interoperability across the mixed-vendor vehicle network, and the -40 C to +150 C operating range covers TCU mounting locations near the windshield or A-pillar. The 4.5 V to 5.5 V supply range tolerates battery-voltage transients during cranking, and the exposed-pad HVSON package aids heat spreading on compact TCU boards.
Recommended
Domain Controllers and Zonal ECUs
Zonal architecture consolidates body and sensor functions into zone controllers that aggregate many CAN FD nodes on high-traffic bus segments. Because CAN FD traffic on these segments runs at up to 5 Mbit/s in the data phase, the physical transceiver must meet the tighter symmetry and receiver-timing requirements of ISO 11898-2 (2016), which the TJA1145A family was designed to satisfy. The selective wake-up decoder with FD-passive behavior allows each zonal ECU to remain in low-power Standby until a zone-specific wake-up frame arrives, supporting next-generation power-network management. The 14-HVSON (3x4.5 mm) package with exposed pad provides the thermal and EMI performance expected on high-utilization bus segments operating from a 4.5 V to 5.5 V supply.
Recommended
Battery Management Systems (BMS)
Automotive battery management systems communicate cell-monitoring and state-of-charge data over CAN FD to the vehicle control network and must themselves enter deep sleep when the vehicle is off. Using the TJA1145ATK/FD/0Z, the BMS CAN node sleeps at minimal quiescent current while the FD-passive partial-networking function filters out CAN FD frames, waking only on the valid wake-up frame addressed by the vehicle controller. The wide -40 C to +150 C ambient rating accommodates battery-pack proximity, and the 4.5 V to 5.5 V supply operates from the isolated or non-isolated 5 V bias rail used in BMS communication sections. Differential transmit/receive capability on the two-wire bus provides the common-mode robustness required near high-current battery cabling.
Recommended
ADAS Sensor Nodes
ADAS sensor nodes such as radar, camera and lidar modules stream increasingly large data sets, and many use CAN FD control channels at up to 5 Mbit/s for configuration, diagnostics and time-sync messaging. The TJA1145ATK/FD/0Z provides the ISO 11898-2 (2016)-compliant physical layer for these channels, with reliable communication in the CAN FD fast phase as confirmed on the NXP product page. Its partial-networking capability lets a sleeping sensor node wake selectively when the ADAS domain controller requests data, and the FD-passive function prevents stray CAN FD traffic from disrupting standby state. The device operates from 4.5 V to 5.5 V and survives the -40 C to +150 C temperature exposure typical of windshield- and grille-mounted sensor housings.
Recommended
Recommended Products Summary
Engineering reference data for TJA1145ATK-FD-0Z β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TJA1145TK/FD-0Z | TJA1145TK/FDJ | TJA1145ATK | TJA1145ATK/FD |
|---|---|---|---|---|---|
| Package | 14-HVSON (3x4.5 mm), exposed pad | 14-HVSON (3x4.5 mm) - same | 14-HVSON (3x4.5 mm) - same | 14-HVSON (3x4.5 mm) - same | 14-HVSON (3x4.5 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| FD-passive Partial Networking | Yes | Yes | Yes | Yes (family function) | Yes |
| Supply Voltage Range | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V |
| Operating Temperature | -40 C to +150 C | -40 C to +150 C | -40 C to +150 C | -40 C to +150 C | -40 C to +150 C |
| Ordering Code Meaning | /0Z = RoHS lead-free, tape and reel | /0Z = RoHS lead-free, tape and reel | /FDJ = alternate finish/packing qualifier | base ordering code (per PCN 202001016F01) | /FD = CAN FD variant qualifier |
Key Differentiators
- CAN FD 5 Mbit/s capability with ISO 11898-2 (2016) compliance (vs TJA1145ATK (non-FD qualification basis))
- FD-passive selective wake-up (vs generic high-speed CAN transceivers without partial networking)
- Exposed-pad HVSON-14 package for thermal and EMC performance (vs TJA1145AT/FD/0Z (SO14 gull-wing))
Design Notes
Do not substitute SO14 gull-wing TJA1145T or TJA1145AT variants for this HVSON-14 part: although electrically similar, the footprints are different and the PCB land pattern cannot accept both. Restrict second sourcing to TJA1145TK-family HVSON variants. Also note NXP product change notification 202001016F01 documents an industrial standardization to copper (Cu) bond wire for TJA1145ATK(/FD) parts - review the PCN if your design is qualification-frozen.
The 14-HVSON (3x4.5 mm) package has an exposed die pad that must be soldered to a grounded or specified copper area per the NXP datasheet land-pattern recommendation; this pad provides the primary heat-spreading and EMI-performance path. Use the manufacturer's recommended footprint, with thermal vias under the exposed pad, and keep the split-termination network and bus-protection components close to the CANTX/CANRX bus pins to preserve CAN FD signal symmetry at 5 Mbit/s.
Power the transceiver from a regulated 4.5 V to 5.5 V automotive 5 V rail with local decoupling (typical value per NXP datasheet application circuit - consult the latest TJA1145.pdf for exact capacitor values, not captured in this page's verified data). In Sleep/Standby mode the whole point of partial networking is minimal battery drain, so ensure upstream quiescent loads (LDO ground current, divider networks) are also minimized to realize the system-level current budget.
CAN FD fast-phase edges at 5 Mbit/s generate significantly more electromagnetic emission than classical CAN. Use the NXP datasheet's recommended split-termination topology (two resistors of equal value with a capacitor from the center tap to ground), place common-mode choke per the reference design, and keep the stub length from transceiver to connector short. Verify bus symmetry against ISO 11898-2 (2016) limits during EMC pre-compliance testing.
Compliance Information
The /0Z ordering suffix denotes NXP's RoHS-compliant, lead-free finish; tape-and-reel packing confirmed by distributor data (Datasheet Directory listing: 'Packing Method: Tape Reel'). REACH, AEC-Q100 and halogen-free status were not stated in the verified data and must be confirmed via NXP compliance certificates.
