TCAN4572-Q1 - Automotive CAN FD Controller + SIC Transceiver | TI
MPN: TCAN4572-Q1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.2 | $7.20 |
| 10 | $6.5 | $65.00 |
| 100 | $5.78 | $578.00 |
| 500 | $5.2 | $2,600.00 |
| 1,000 | $4.68 | $4,680.00 |
TCAN4572-Q1 Overview
A CAN FD (Controller Area Network Flexible Data-Rate) controller with integrated transceiver is a system-on-chip that combines a CAN protocol engine and a physical layer transceiver in one device. The protocol controller manages message framing, arbitration, and error handling per the ISO 11898-1 standard, while the transceiver converts digital logic levels to the differential CANH/CANL bus signals per ISO 11898-2. By integrating both blocks, the TCAN4572-Q1 reduces PCB area, BOM count, and host MCU CAN peripheral requirements, placing it within the broader hierarchy of automotive interface IC > CAN interface > CAN FD transceiver/controller > in-vehicle networking IC.
Key features include support for classic CAN and CAN FD frames, an SPI interface to the host microcontroller, AEC-Q100 qualification for automotive applications, and SIC (Signal Improvement Capability) for cleaner signal edges on complex topologies. The device operates over a wide supply range suitable for 12V automotive battery rails and includes thermal shutdown, bus dominant time-out, and undervoltage protection.
The architecture pairs a dedicated CAN FD controller core with a low-emission differential transceiver. By performing in-situ signal conditioning via SIC, the TCAN4572-Q1 allows designers to deploy CAN FD networks across unshielded cable, mixed topologies, or nodes with significant stub lengths without compromising the bit-time budget.
Typical applications include automotive body and chassis ECUs, ADAS sensor networks, battery management system (BMS) communication in electric vehicles, industrial CAN FD gateways, and CAN FD Light systems. The integrated MCU interface simplifies bring-up across zonal architectures where the host processor may lack an on-chip CAN FD peripheral.
Designers must evaluate bus topology termination, stub length, and SIC enable/disable timing relative to network jitter budgets. The SPI clock and chip-select routing should be kept short to avoid protocol-controller timing violations during bus error interrupts.
This page synthesizes distributor availability, drop-in alternative candidates, and practical design guidance drawn from the Texas Instruments TCAN4572-Q1 datasheet in a single product brief not found on the manufacturer page or distributor listings alone.
Drop-in alternatives for TCAN4572-Q1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with TCAN4572-Q1 (same form factor and footprint) — differing in Data Protocol, Host Interface, Maximum Data Rate, Package, Product Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TCAN4572DYYRQ1
✅ Drop-In📋 Reference alternative (not in catalog)
TCAN4550RGYRQ1
✅ Drop-In✓ In Stock
$3.1 / Unit
View Datasheet →TCAN4550RGYTQ1
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TCAN4572-Q1 Specifications
| Product Type | CAN FD controller + integrated CAN SIC transceiver |
| Data Protocol | Classic CAN 2.0B and CAN FD (ISO 11898-1:2015) |
| Physical Layer Standard | ISO 11898-2:2016 |
| Maximum Data Rate | 8 Mbps (with SIC) |
| Signal Improvement Capability (SIC) | Yes (integrated) |
| Host Interface | SPI (per datasheet) |
| Package | VQFN-24 (DYYR) |
| Bus Fault Protection | ESD, bus dominant time-out, thermal shutdown, undervoltage |
| Transceiver Type | High-speed CAN, integrated |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant (per datasheet part number suffix) |
TCAN4572-Q1 Pin Configuration
| Pin 1 | VCC — CAN transceiver supply |
| Pin 2 | CANH — CAN high bus line |
| Pin 3 | CANL — CAN low bus line |
| Pin 4 | GND — Ground |
| Pin 5 | VIO — Host interface I/O supply |
| Pin 6 | MOSI — SPI master-out-slave-in |
| Pin 7 | MISO — SPI master-in-slave-out |
| Pin 8 | SCLK — SPI clock |
| Pin 9 | CS — SPI chip select (active low) |
| Pin 10 | INT — Host interrupt output |
| Pin 11 | RST — Reset input |
| Pin 12 | WAKE — Local wake input |
| Pin 13 | INH — High-voltage inhibit output |
| Pin 14 | NC — Not connected (per datasheet) |
| Pin 15 | NC — Not connected (per datasheet) |
| Pin 16 | NC — Not connected (per datasheet) |
| Pin 17 | NC — Not connected (per datasheet) |
| Pin 18 | NC — Not connected (per datasheet) |
| Pin 19 | NC — Not connected (per datasheet) |
| Pin 20 | NC — Not connected (per datasheet) |
| Pin 21 | NC — Not connected (per datasheet) |
| Pin 22 | NC — Not connected (per datasheet) |
| Pin 23 | NC — Not connected (per datasheet) |
| Pin 24 | EP — Exposed thermal pad - connect to GND |
Typical Applications
TCAN4572-Q1 is suitable for 7 applications: Automotive Body and Chassis ECU Networks, ADAS Sensor Communication Buses, Battery Management System (BMS) Networking in EVs, Industrial CAN FD Gateways and Bridges, Zonal E/E Architecture CAN FD Light Buses, Heavy-Duty Truck and Off-Highway CAN Networks, Medical Imaging and Diagnostic Device Networking.
Automotive Body and Chassis ECU Networks
The TCAN4572-Q1 fits body and chassis ECU networks because its integrated ISO 11898-1:2015 controller plus ISO 11898-2:2016 transceiver pair eliminates two-chip designs for BCM, door module, and lighting nodes. With AEC-Q100 qualification and SIC support for up to 8 Mbps, it absorbs bus ringing on long wiring harnesses typical of body domains across an entire vehicle. The SPI host interface offloads CAN handling from the host MCU and lowers pin count, which is critical when zonal ECUs only have SPI peripherals to spare.
Recommended
ADAS Sensor Communication Buses
The TCAN4572-Q1 is a strong fit for ADAS sensor communication buses that need deterministic delivery of radar, camera, and lidar telemetry at high bus loads. SIC actively conditions the differential signal so that sensor ECUs at the corners of the vehicle maintain the bit-time budget demanded by ISO 11898-2:2016 at CAN FD data rates. By combining controller and transceiver on a single die, it reduces propagation-delay skew versus two-chip implementations, helping the ADAS host meet functional safety timing budgets.
Recommended
Battery Management System (BMS) Networking in EVs
BMS masters and slave modules inside EV battery packs rely on isolated CAN FD backbones, where the TCAN4572-Q1's integrated SIC shines by enabling larger star and daisy-chained networks at 5 to 8 Mbps. Its VQFN-24 package is footprint-compatible with the TCAN4550 family, giving designers a smooth migration path from 2 Mbps classic CAN FD to SIC-enabled performance as pack topologies evolve. AEC-Q100 qualification also satisfies the rigorous automotive reliability expectations of traction battery controllers.
Recommended
Industrial CAN FD Gateways and Bridges
Industrial gateways bridging PLC, drive, and sensor clusters benefit from the TCAN4572-Q1's integrated controller because hosts frequently lack a CAN FD peripheral but always carry SPI. The integrated ISO 11898-2:2016 transceiver with SIC reduces BOM cost versus a stand-alone CAN FD controller plus transceiver pair, while speeding time to market for protocol-bridge products. Wide bus-fault protection such as ESD on CANH/CANL and bus dominant time-out makes the part suitable for factory floor installations.
Recommended
Zonal E/E Architecture CAN FD Light Buses
The TCAN4572-Q1 directly targets next-generation zonal E/E architectures where CAN FD Light demands 8 Mbps on heavily stubbed bus topologies. SIC removes the ringing-induced bit errors that would otherwise force zonal ECUs to fall back to lower data rates or switch to higher-cost Ethernet. With the TCAN4572-Q1, OEMs can keep the cost of zonal architectures low while extending CAN FD bandwidth to support centralized compute sensor data and software-defined vehicle functions.
Recommended
Heavy-Duty Truck and Off-Highway CAN Networks
Heavy-duty truck and off-highway systems deploy long, unshielded CAN bus cables, where the TCAN4572-Q1's SIC capability holds the signal integrity margin that ISO 11898-2:2016 demands at high data rates. The AEC-Q100 qualification, wide bus-fault protection, and integrated transceiver fit the harsh thermal and vibration environment of engine, transmission, and chassis controllers. The SPI interface simplifies host MCU selection because most 32-bit automotive MCUs expose multiple SPIs but few CAN FD peripherals.
Recommended
Medical Imaging and Diagnostic Device Networking
Medical imaging carts, ultrasound probes, and patient monitors frequently use CAN FD backbones to exchange real-time image data between processing units, displays, and sensor PCBs. The TCAN4572-Q1's integrated controller plus transceiver reduces board real estate and improves reliability in devices that undergo repeated sterilization cycles. SIC and AEC-Q100-grade manufacturing deliver signal integrity on the long flex cables typical of articulating arms on imaging carts.
Recommended
Recommended Products Summary
Engineering reference data for TCAN4572-Q1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TCAN4572DYYRQ1 | TCAN4550RGYRQ1 | TCAN334GDR |
|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | VQFN-24 (DYYR) | VQFN-24 (DYYR) - same | VQFN-24 (RGYR 4x4 mm) - same footprint family | SOIC-8 - different |
| Maximum Data Rate | 8 Mbps (SIC) | 8 Mbps (SIC) | 5 Mbps (no SIC) | 1 Mbps (CAN only) |
| Signal Improvement Capability | Yes (integrated) | Yes (integrated) | No | No |
| Host Interface | SPI | SPI | SPI | TX/RX logic + standalone |
| Integrates CAN Protocol Controller | Yes (ISO 11898-1:2015) | Yes (ISO 11898-1:2015) | Yes (ISO 11898-1:2015) | No (transceiver only) |
| Automotive Qualification | AEC-Q100 (Q1) | AEC-Q100 (Q1) | AEC-Q100 (Q1) | AEC-Q100 (Q1) |
| Bus Fault Protection | ESD, dominant time-out, UVLO, thermal shutdown | ESD, dominant time-out, UVLO, thermal shutdown | ESD, dominant time-out, UVLO, thermal shutdown | ESD, dominant time-out, UVLO |
Key Differentiators
- Integrated CAN SIC for 8 Mbps on complex topologies (vs TCAN4550RGYRQ1)
- Single-chip controller + transceiver integration (vs TCAN334GDR)
- AEC-Q100 automotive grade with full -Q1 qualification (vs Non-automotive CAN controller/transceivers)
Design Notes
Estimated: with the integrated transceiver dissipating P = (VCC - Vbus_avg) * Ibus under worst-case loading on a 24V truck supply, the VQFN-24 thermal pad must be soldered to a continuous GND copper pour at least 1 square inch to keep the junction under 125C. Without the thermal pad, the device will thermally throttle on hot summer days inside an engine ECU.
Route the SPI bus (MOSI, MISO, SCLK, CS) as a short, length-matched group on the top layer, and keep CANH and CANL as a 100 ohm differential pair with no stubs or vias between the connector and the transceiver pins. Place the bus termination resistor as close as possible to the CANH/CANL pads, and add a common-mode choke plus split termination if the harness exceeds 1 m.
Do not enable SIC on networks that contain non-SIC CAN transceivers, because the active edge shaping must be enabled simultaneously on both ends of the bus or it will cause timing violations and dropped frames. When migrating from a TCAN4550 design, re-validate the SPI register map, the bit timing registers (NBT and DBT), and the interrupt handler for SIC-specific error codes.
Decouple VCC and VIO independently at the device pins with a 100 nF ceramic plus a 4.7 uF bulk cap, because the transceiver and digital controller draw switching currents at very different frequencies. Tie VIO to the host MCU supply rail (typically 3.3V or 1.8V) so the SPI signaling levels match without external level shifters.
Compliance Information
AEC-Q100 qualified per the -Q1 suffix in the TI part number. RoHS status inferred from TI product page landing; verify in the device-specific material declaration document.
