TCAN1473A-Q1 - SIC CAN FD Transceiver 8Mbps | Texas Instruments
MPN: TCAN1473A-Q1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1 | $1.00 |
| 10 | $1 | $10.00 |
| 100 | $1 | $100.00 |
| 500 | $1 | $500.00 |
| 1,000 | $1 | $1,000.00 |
TCAN1473A-Q1 Overview
A CAN transceiver is the physical-layer interface between a CAN protocol controller and the twisted-pair bus, converting controller logic into differential signals and vice versa while providing drive strength, receiver thresholding, and fault protection. Within the interface IC hierarchy, the TCAN1473A-Q1 sits alongside LIN and FlexRay transceivers in automotive networking systems.
Key features include SIC functionality, which actively shapes bus signals to reduce ringing at dominant-to-recessive edges, lowering electromagnetic emissions and enabling 2 Mbps, 5 Mbps, or 8 Mbps operation in large networks with unterminated stubs. The device integrates a low-power Sleep mode, an SWE timer that safely transitions to Sleep after tINACTIVE inactivity in Standby mode, and INH and WAKE pins for system power control. Protection includes thermal shutdown and bus fault tolerance, with AEC-Q100 qualification.
According to the TI datasheet, the TCAN1473A-Q1 is pin compatible with classical CAN FD transceivers such as TCAN1043A-Q1, TCAN1043-Q1, and TCAN1043N-Q1, simplifying upgrades of existing designs to SIC without PCB changes.
Typical applications include body electronics and lighting, automotive gateways, ADAS domains, infotainment and cluster, hybrid/electric powertrain systems, e-bikes, and industrial transportation.
Design consideration: optimize bus termination and common-mode choke placement; SIC improves margin on long stubs, but proper PCB layout and grounding remain essential for best EMC performance.
Drop-in alternatives for TCAN1473A-Q1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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TCAN1473A-Q1 Specifications
| Interface Type | CAN FD transceiver with SIC |
| Protocol Standard | ISO 11898-2:2024 (including SIC) |
| Maximum Data Rate | 8 Mbps |
| Number of Channels | 1 Transceiver (Half duplex) |
| Low-Power Modes | Sleep, Standby (with SWE timer) |
| Wake-Up Function | WAKE pin and bus wake-up |
| INH Output | Yes (battery power gating via INH pin) |
| Mounting Type | Surface Mount |
| Package | 14-VSON (DMT, 4.5x3 mm) |
| AEC-Q100 | Qualified (automotive) |
| Thermal Shutdown | Yes |
| Pin Compatibility | TCAN1043A-Q1, TCAN1043-Q1, TCAN1043N-Q1 |
| Applications | Body electronics, gateways, ADAS, infotainment, powertrain |
| RoHS Status | Compliant |
TCAN1473A-Q1 Pin Configuration
| Pin 1 | WAKE — Local wake-up input pin |
| Pin 2 | GND — Ground reference |
| Pin 3 | VCAN — CAN transceiver core supply |
| Pin 4 | CANH — CAN bus high line |
| Pin 5 | CANL — CAN bus low line |
| Pin 6 | VCC — Main supply voltage |
| Pin 7 | VIO — I/O logic level supply for TXD/RXD |
| Pin 8 | TXD — Transmit data input from CAN controller |
| Pin 9 | RXD — Receive data output to CAN controller |
| Pin 10 | STB — Mode control (Standby) input |
| Pin 11 | EN — Mode enable input |
| Pin 12 | nWKRQ — Wake request status output |
| Pin 13 | INH — INH output for battery power gating |
| Pin 14 | NC/PAD — Refer to datasheet pin table for exact assignment |
Typical Applications
TCAN1473A-Q1 is suitable for 6 applications: Automotive Gateways, ADAS Domain Controllers, Body Electronics and Lighting, Infotainment and Cluster, Hybrid/Electric Powertrain Systems, E-Bikes and Industrial Transportation.
Automotive Gateways
Automotive gateways aggregate multiple CAN FD, LIN, and Ethernet domains, and the TCAN1473A-Q1 fits these hubs directly. Its 8 Mbps SIC capability provides timing margin on physically imperfect stub-heavy harnesses typical of gateway topologies, while Sleep mode with INH power gating keeps quiescent battery drain near zero when the vehicle is off. Placed between the gateway MCU CAN controller and the twisted-pair bus, it converts logic-level TXD/RXD into differential CANH/CANL signals meeting ISO 11898-2:2024. The SWE timer protects against MCU lockup by forcing Sleep after about 4 minutes of Standby inactivity.
Recommended
ADAS Domain Controllers
ADAS domain controllers exchange high-rate sensor data over CAN FD at 2-8 Mbps, where reflections on unterminated stubs can collapse timing margin. The TCAN1473A-Q1's Signal Improvement Capability actively damps ringing at dominant-to-recessive edges, enabling reliable 5 Mbps and 8 Mbps communication in real vehicle topologies. Its AEC-Q100 qualification and bus fault tolerance address automotive reliability requirements, while thermal shutdown protects during bus faults. Positioned on each CAN channel of the domain controller, it also supports low-power Sleep with WAKE-pin detection of vehicle wake events.
Recommended
Body Electronics and Lighting
Body control modules and lighting ECUs need extremely low quiescent current when the vehicle is parked. The TCAN1473A-Q1's Sleep mode, WAKE pin, and INH output allow the ECU to power-gate all downstream supplies while the transceiver alone monitors the CAN bus for wake-up patterns, per TI's system-level battery current reduction architecture. The SWE timer guarantees a safe return to Sleep if firmware hangs in Standby. SIC signal shaping also improves EMC margin in the electrically noisy door and lighting harness environments where stub lengths are rarely controlled.
Recommended
Infotainment and Cluster
Instrument clusters and infotainment head units require CAN FD bandwidth for display and multimedia message traffic. The TCAN1473A-Q1 delivers up to 8 Mbps with SIC, providing robust communication despite long harness stubs behind the dashboard. Its VIO-independent logic interface eases connection to mixed-voltage SoCs and display controllers, and the INH pin sequences power rails during vehicle wake-up. Low-power Sleep supports compliance with key-off battery drain limits, and thermal shutdown plus bus fault tolerance survive infotainment-rated fault insertion testing.
Recommended
Hybrid/Electric Powertrain Systems
In EV and hybrid powertrain ECUs, CAN FD nodes connect motor inverters, battery management, and vehicle control. The TCAN1473A-Q1's SIC reduces radiated emissions at dominant-to-recessive edges, easing EMC compliance near traction electronics, while 8 Mbps CAN FD supports fast torque-command messaging. AEC-Q100 qualification covers powertrain ambient extremes, and bus fault tolerance plus thermal shutdown handle fault conditions common in high-voltage environments. Sleep mode with INH gating minimizes 12 V battery drain during vehicle shutdown.
Recommended
E-Bikes and Industrial Transportation
E-bikes, scooters, and industrial transport vehicles use CAN FD for compact, robust controller networks. The TCAN1473A-Q1 operates from a single supply with wide bus fault tolerance, and its SIC allows 2-8 Mbps communication on cost-sensitive harnesses with uncontrolled stub lengths. Sleep mode extends battery runtime for parked vehicles, with WAKE-pin and bus wake-up restoring communication. The 4.5x3 mm 14-VSON DMT package fits space-constrained handlebar and controller boards, and pin compatibility with TCAN1043A-Q1 simplifies migration of existing e-bike designs to SIC.
Recommended
Recommended Products Summary
Engineering reference data for TCAN1473A-Q1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TCAN1473-Q1 | TCAN1463-Q1 | TCAN1043A-Q1 | TJA1463 |
|---|---|---|---|---|---|
| Package | 14-VSON (DMT, 4.5x3 mm) | 14-VSON (DMT) - same | 14-VSON (DMT) - same | 14-VSON (DMT) - same | HVSON-14 (4.5x3 mm) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | NXP Semiconductors |
| Max Data Rate | 8 Mbps | 8 Mbps | 8 Mbps | 8 Mbps (no SIC) | 8 Mbps |
| SIC Functionality | Yes | Yes | Yes | No (classical CAN FD) | Yes |
| Protocol Standard | ISO 11898-2:2024 incl. SIC | ISO 11898-2:2024 incl. SIC | ISO 11898-2:2016 | ISO 11898-2:2016 | ISO 11898-2 incl. SIC |
| Sleep Mode | Yes | Yes | Yes | Yes | Yes |
| AEC-Q100 | Qualified | Qualified | Qualified | Qualified | Qualified |
| INH / WAKE Pins | Yes / Yes | Yes / Yes | Yes / Yes | Yes / Yes | Yes / Yes |
| Pin Compatible with TCAN1473A-Q1 | - | Yes | Yes | Yes (per TI datasheet) | Functionally similar; verify pinout |
Key Differentiators
- Signal Improvement Capability per ISO 11898-2:2024 (vs TCAN1043A-Q1)
- SWE inactivity timer for fail-safe power (vs TCAN1473-Q1 family siblings)
- Latest standard compliance with sleep architecture (vs TJA1463 (NXP))
Design Notes
SIC improves bus signal quality by damping ringing at dominant-to-recessive edges, but board-level EMC still depends on layout. Place the common-mode choke close to the CANH/CANL pins, use a split termination matched to the cable characteristic impedance (typically 60 ohms effective across the bus), and keep the WAKE and GND returns solid. Route TXD/RXD away from the bus traces to prevent coupling.
Use the INH pin to gate upstream battery-fed supplies so that only the TCAN1473A-Q1 remains powered in Sleep mode, minimizing key-off current drain. Size VCC and VCAN decoupling (100 nF ceramic close to the pins plus bulk capacitance) for bus dominant currents. Verify the SWE timer tINACTIVE behavior against your power sequencing so the MCU cannot be cut off before completing Sleep entry.
Confirm VIO matches the MCU I/O voltage before wiring TXD/RXD - a logic-level mismatch causes phantom dominant bits. Do not leave the STB/EN mode pins floating; an undefined mode prevents proper wake-up. When migrating from TCAN1043A-Q1, the footprint is identical, but enable Sleep and SWE features in firmware only after validating wake pattern timing in the network.
Compliance Information
AEC-Q100 qualified for automotive applications per TI and Mouser product pages. RoHS per TI ordering information; REACH and halogen-free status should be confirmed via TI environmental reports for the exact suffix.
