TCAN1145DRQ1 - Automotive CAN FD Transceiver | Texas Instruments
MPN: TCAN1145DRQ1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.6299 | $0.63 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
TCAN1145DRQ1 Overview
A CAN transceiver is the physical-layer interface between a host processor and a Controller Area Network bus. The TCAN1145-Q1 family supports enhanced high-speed CAN FD and high-speed CAN operation, while its selective-wake function uses wake-up frame identification to reduce the number of active network nodes. Its SPI interface provides access to device configuration and status functions, allowing a microcontroller to manage transceiver behavior without relying on undisclosed control assumptions.
The principal verified feature set includes support for CAN FD data rates up to 5 Mbps, nominal processor I/O operation from 1.8 V to 5 V, and selective wake for partial networking. The TCAN1145DRQ1 ordering variant is identified by DigiKey as a 1/1 half-CANbus transceiver in a 14-SOIC package. The TI product description also associates the device with automotive CAN FD applications and ISO 11898-2:2016-compatible selective-wake functionality.
The device is intended for vehicle body, comfort, infotainment, gateway, and distributed control networks where sleeping nodes must be awakened selectively. Compared with a conventional always-on CAN transceiver, the selective-wake architecture can reduce activity in a partial network and preserve energy when only selected nodes communicate. The SPI interface also supports firmware-controlled configuration, which is useful when a system needs programmable bus-management behavior.
Designers should confirm the complete electrical limits, pin functions, transceiver modes, ESD behavior, loopback behavior, and timing values from the manufacturer datasheet before layout release. CAN bus routing requires controlled differential impedance, appropriate termination, common-mode protection according to the vehicle design, and careful separation from noisy high-current paths. The transceiver should be placed near the connector and bus protection network, while SPI and ground returns should be routed away from the CANH and CANL conductors.
TCAN1145DRQ1 is best suited to new automotive electronic systems that specifically need CAN FD, selective wake, SPI access, and a 1.8 V to 5 V processor interface. The TCAN1042HGDR comparison reference is useful for evaluating a different TI CAN transceiver, but it should not be treated as a drop-in replacement without confirming its pinout and electrical requirements. This page combines manufacturer information, distributor package identification, cross-reference context, and design guidance for engineering evaluation.
Drop-in alternatives for TCAN1145DRQ1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TCAN1042HGDR
✅ Drop-In📋 Reference alternative (not in catalog)
TCAN1042HGVDRQ1
✅ Drop-In📋 Reference alternative (not in catalog)
TCAN1051HVDRQ1
✅ Drop-In📋 Reference alternative (not in catalog)
TCAN1145DRQ1 Specifications
| Product Type | Automotive CAN FD transceiver |
| CAN FD Data Rate | Up to 5 Mbps |
| Processor I/O Voltage | 1.8 V to 5 V nominal |
| Selective Wake | Supported via WUF identification |
| Interface | SPI configuration and control |
| CAN Bus Type | Enhanced high-speed CAN FD and high-speed CAN |
| Automotive Qualification | Automotive product family |
| Standard Reference | ISO 11898-2:2016 |
| Package | 14-pin SOIC |
| Package Designation | SOIC-14 |
| Mounting Type | Surface mount |
| Transceiver Configuration | 1/1 transceiver |
| CAN Bus Classification | Half CANbus |
| Wake-Up Architecture | Partial networking with selective wake |
TCAN1145DRQ1 Pin Configuration
| Pin 1 | [DATA_NEEDED: pin name] — [DATA_NEEDED: pin function] |
| Pin 2 | [DATA_NEEDED: pin name] — [DATA_NEEDED: pin function] |
| Pin 3 | [DATA_NEEDED: pin name] — [DATA_NEEDED: pin function] |
| Pin 4 | [DATA_NEEDED: pin name] — [DATA_NEEDED: pin function] |
| Pin 5 | [DATA_NEEDED: pin name] — [DATA_NEEDED: pin function] |
| Pin 6 | [DATA_NEEDED: pin name] — [DATA_NEEDED: pin function] |
| Pin 7 | [DATA_NEEDED: pin name] — [DATA_NEEDED: pin function] |
| Pin 8 | [DATA_NEEDED: pin name] — [DATA_NEEDED: pin function] |
| Pin 9 | [DATA_NEEDED: pin name] — [DATA_NEEDED: pin function] |
| Pin 10 | [DATA_NEEDED: pin name] — [DATA_NEEDED: pin function] |
| Pin 11 | [DATA_NEEDED: pin name] — [DATA_NEEDED: pin function] |
| Pin 12 | [DATA_NEEDED: pin name] — [DATA_NEEDED: pin function] |
| Pin 13 | [DATA_NEEDED: pin name] — [DATA_NEEDED: pin function] |
| Pin 14 | [DATA_NEEDED: pin name] — [DATA_NEEDED: pin function] |
Typical Applications
TCAN1145DRQ1 is suitable for 6 applications: Automotive Body Control Network, Vehicle Gateway and Infotainment, ADAS Sensor Backbone, Battery and Charging Management, Industrial Vehicle CAN FD Network, Automotive Diagnostic and Service Interface.
Automotive Body Control Network
TCAN1145DRQ1 fits a vehicle body-control network that needs CAN FD communication up to 5 Mbps while allowing unused nodes to remain asleep. Place the transceiver between the CAN controller and the CANH/CANL bus, configure selective wake through the SPI interface, and identify the accepted WUF in firmware. This architecture can reduce activity in partial-network segments and preserve energy when only a door, lighting, or seat-control node needs attention.
Recommended
Vehicle Gateway and Infotainment
For a gateway or infotainment controller, TCAN1145DRQ1 provides a CAN FD physical-layer interface with processor I/O support from 1.8 V to 5 V. The host can connect a 1.8 V or 5 V MCU through VIO while the CAN controller manages higher-speed network traffic. Selective wake is useful when the infotainment domain must respond to a defined frame without continuously powering every CAN node.
Recommended
ADAS Sensor Backbone
TCAN1145DRQ1 can support a CAN FD sensor backbone where sensor-domain controllers need data rates up to 5 Mbps and selective activation of sensing nodes. A radar, camera, or vehicle dynamics controller can wake a selected domain through a WUF, then exchange CAN FD frames while idle nodes remain in low-power sleep. The implementation must verify controller timing, bus fault behavior, and system-level network management before production release.
Recommended
Battery and Charging Management
TCAN1145DRQ1 is appropriate for a battery-management or charging controller that participates in a CAN FD vehicle network and needs to sleep when the domain is inactive. The CAN controller can use selective wake to distinguish a valid network-management frame from ordinary bus traffic, allowing the power-management domain to remain off during storage or standby. Verify the transceiver's complete supply, fault, and wake specifications in the manufacturer datasheet before connecting it to a safety-critical charger.
Recommended
Industrial Vehicle CAN FD Network
TCAN1145DRQ1 can be evaluated for industrial vehicle and off-highway equipment CAN FD networks that need selective wake and a compact SOIC interface. A machine controller can wake only the subsystem responsible for a requested function, helping limit bus activity and power use. The design should still include automotive-style protection planning because the verified product identity is an automotive CAN FD transceiver and the application environment may involve long cables, transients, and electromagnetic noise.
Recommended
Automotive Diagnostic and Service Interface
TCAN1145DRQ1 can support a diagnostic gateway or service interface that must join a selective-wake CAN FD segment only when required. The diagnostic controller can configure the transceiver through SPI and define the WUF or wake behavior required by the vehicle network. Because the supplied verified data does not provide every timing, supply, or ESD value, engineers should use the manufacturer datasheet for signal conditioning, protection, fault recovery, and production qualification.
Recommended
Recommended Products Summary
Engineering reference data for TCAN1145DRQ1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TCAN1042HGDR | TCAN1042HGVDRQ1 | TCAN1051HVDRQ1 |
|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 14-pin SOIC | SOIC-14; exact footprint verification required | SOIC-14; exact footprint verification required | SOIC-14; exact footprint verification required |
Key Differentiators
- CAN FD performance (vs TCAN1042HGDR)
- Selective wake and partial networking (vs TCAN1042HGVDRQ1)
- Processor voltage flexibility (vs TCAN1051HVDRQ1)
Design Notes
Route CANH and CANL as a closely coupled differential pair with the impedance and clearances specified by the vehicle network design. Place the transceiver close to the bus connector and termination or protection components so that connector transients are clamped before reaching sensitive IC pins. Keep the SPI and VIO traces short, and provide a continuous ground reference between the transceiver, protection network, and connector.
Decouple each transceiver supply pin locally with the capacitance and voltage rating required by the manufacturer datasheet. The verified data confirms processor I/O operation from 1.8 V to 5 V, but it does not provide the complete supply-voltage limits or recommended capacitor values. Check VIO, CANH/CANL-related power rails, startup sequencing, and sleep-current behavior against the final schematic before release.
Treat CAN FD as a controlled-impedance differential channel rather than two unrelated traces. Match routing geometry, minimize stubs, observe the transceiver and connector placement, and validate edge-rate behavior with the intended CAN FD controller. TCAN1145DRQ1 is verified up to 5 Mbps, but bus margin also depends on wiring, termination, node count, topology, electromagnetic conditions, and the selected operating mode.
Do not treat selective wake as a generic CAN sleep feature. Firmware must identify the intended WUF, configure the transceiver through SPI, and define behavior for timeout, bus errors, partial networking, and recovery. Also verify that the MCU I/O voltage matches the VIO range of 1.8 V to 5 V. Replacing this device with a related TCAN1042 or TCAN1051 part without checking the pinout and feature differences can create both hardware and firmware incompatibilities.
Compliance Information
The verified data identifies TCAN1145-Q1 as an automotive CAN FD product and references ISO 11898-2:2016 for the selective-wake function, but it does not provide explicit RoHS, REACH, lead-free, halogen-free, or conflict-minerals declarations. Compliance fields are therefore unknown rather than assumed.
