TCAN3403-Q1 - 3.3V Automotive CAN FD Transceiver | TI
N.º de pieza: TCAN3403-Q1 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $2.25 | $2,25 |
| 10 | $1.95 | $19,50 |
| 100 | $1.62 | $162,00 |
| 500 | $1.34 | $670,00 |
| 1.000 | $1.1 | $1.100,00 |
TCAN3403-Q1 Descripción general
A CAN transceiver (also called a CAN physical-layer or CAN PHY) is the analog interface IC that sits between a digital CAN protocol controller (typically inside an MCU) and the differential CANH/CANL bus wires. It converts the controller's transmit (TXD) digital stream into a balanced differential signal on the bus and vice versa, while providing dominant/common-mode biasing, ESD protection, bus-fault survival, and optional low-power modes. CAN FD extends classic CAN by increasing payload size (64 bytes) and bit rate (up to 5 Mbps in the data phase), enabling higher bandwidth for automotive body, chassis, and powertrain networks; the TCAN3403-Q1 operates seamlessly on mixed classic CAN and CAN FD networks.
Key features of the TCAN3403-Q1 include AEC-Q100 Grade 1 qualification for automotive use, ±58 V bus standoff (versus typical ±40 V parts), low-loop delay for FD arbitration, thermal-shutdown protection, and a standby mode with remote-wake request via the bus (per ISO 11898-2:2016). The 3.3 V single-supply operation eliminates the 5 V LDO that older 5 V transceivers required, reducing BOM cost and PCB area by roughly 10-30 mm².
The device uses a symmetric differential driver architecture with controlled edge rates to minimize EMI and reflections on unterminated stubs. Integrated protection includes undervoltage lockout on both VCC and VIO, TXD dominant-timeout to prevent bus lockup, hot-plug support, and ±25 kV HBM / ±12 kV IEC 61000-4-2 contact discharge ESD on the bus pins.
Typical automotive applications include body-control modules (BCM), gateway ECUs, infotainment domain controllers, ADAS sensor ECUs, and industrial CAN-FD nodes needing automotive-grade qualification. The wide bus-fault range also makes it suitable for 24 V truck and off-road machinery CAN buses where legacy 5 V parts would fail.
Designers should add a 100 nF decoupling cap on VCC and VIO placed within 2 mm of the pins, and a common-mode choke plus split termination (60 Ω + 60 Ω with 4.7 nF to ground) on the bus side for IEC 61000-4-2 ESD compliance and best EMI performance. The STB pin enables standby mode (~15 µA ICC), so connect it to a GPIO for software-controlled sleep.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Alternativas directas para TCAN3403-Q1 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con TCAN3403-Q1 (mismo factor de forma y huella).
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
TCAN3404DRQ1
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
TCAN3413DR
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
TCAN3403DRBRQ1
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
TCAN1043DRQ1
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
TJA1043T/1
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
NCV7428D10R2G
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
TCAN3403-Q1 Especificaciones
| Product Type | CAN FD Transceiver |
| Supply Voltage (VCC) | 3.0 V to 3.6 V |
| Logic Supply Voltage (VIO) | 1.7 V to 5.5 V |
| Maximum Data Rate (CAN FD) | 5 Mbps |
| Maximum Data Rate (Classic CAN) | 1 Mbps |
| Bus Fault Protection | ±58 V |
| Rango de temperatura de funcionamiento | -40 °C to +125 °C |
| AEC-Q100 Qualification | Grade 1 Qualified |
| Package / Pin Options | SOIC-8 (D) and SON-8 (DRB) |
| Low-Power Mode | Standby (with remote wake via bus) |
| ISO 11898-2:2016 Compliance | Yes |
| Estado RoHS | Compliant |
| Lead-Free / Halogen-Free | Yes (per TI product page) |
Configuración de pines de TCAN3403-Q1
| Pin 1 | TXD — Transmit data input from CAN controller (logic level referenced to VIO) |
| Pin 2 | GND — Ground |
| Pin 3 | VCC — 3.3 V transceiver supply |
| Pin 4 | RXD — Receive data output to CAN controller (logic level referenced to VIO) |
| Pin 5 | VIO — Logic-level supply for digital I/O (1.7 V to 5.5 V) |
| Pin 6 | CANL — Low-level CAN bus line |
| Pin 7 | CANH — High-level CAN bus line |
| Pin 8 | STB — Standby mode control input (active-high for standby, active-low for normal) |
Aplicaciones típicas
TCAN3403-Q1 es adecuado para 6 aplicacións: Automotive Body Control Modules (BCM), CAN-FD Gateway ECUs and Domain Controllers, Industrial CAN-FD Nodes and PLCs, ADAS Sensor ECUs (Radar, Camera, Lidar), Battery Management Systems (BMS) and 12 V/48 V Networks, Medical and Test Equipment CAN-FD Interfaces.
Automotive Body Control Modules (BCM)
The TCAN3403-Q1 is widely used in body-control modules where it links the BCM MCU (typically running at 3.3 V) to CAN-FD networks controlling lighting, mirrors, wipers, and door locks. Its 3.3 V VCC with internal VIO logic-level translation eliminates the 5 V LDO that legacy 5 V transceivers required, saving roughly 5-10 cents of BOM cost and 10-30 mm² of PCB area. The ±58 V bus fault protection is more margin than typical body-control transients demand, extending module reliability across 24 V jump-start events from neighbouring trucks. AEC-Q100 Grade 1 qualification (-40 °C to +125 °C) lets designers place the BCM module directly in the engine bay without additional thermal derating. Standby mode with bus-wake support enables long parking periods with current below 20 µA, which is critical for park-net power budgets below 100 µA.
Recomendado
CAN-FD Gateway ECUs and Domain Controllers
In service-oriented gateways and zonal/domain controllers, multiple TCAN3403-Q1 channels are tied to a single MCU (one per CAN bus segment) to bridge CAN-FD between chassis, powertrain, ADAS, and body domains. The 5 Mbps FD data rate with low-loop-delay preserves arbitration timing across star topologies with 3-5 m stubs, while the wide common-mode range rejects ground-shift noise between domains. The VIO pin flexibility allows the same transceiver to be used with the gateway's 1.8 V application processor and the chassis MCU's 3.3 V core, simplifying inventory. Internal ±25 kV HBM ESD on the bus pins reduces field-return rates in production vehicles exposed to assembly-line and consumer-handling ESD events. The SOIC-8 (D) footprint also works as a drop-in upgrade for legacy TCAN334 designs in the gateway enclosure.
Recomendado
Industrial CAN-FD Nodes and PLCs
Although AEC-Q100 qualified for automotive, the TCAN3403-Q1 is well-suited for industrial PLCs, servo drives, and robotics where designers want automotive-grade robustness at industrial price points. The -40 °C to +125 °C operating range covers outdoor cabinets and factory-floor thermal stress, while ±58 V bus fault tolerance tolerates mis-wiring to 24 V industrial supply rails - a frequent field failure in conveyor and packaging-machine installations. The 5 Mbps CAN-FD rate supports high-speed deterministic motion-control loops for multi-axis servo systems where classic 1 Mbps CAN is the bottleneck. VIO down to 1.7 V lets the transceiver connect directly to low-power Cortex-M0+ MCUs without level shifting, simplifying battery-backed industrial sensor hubs. Many designers stock one part across automotive and industrial lines, gaining cost-down by dual use; the same SOIC-8 footprint drops into both reflow profiles.
Recomendado
ADAS Sensor ECUs (Radar, Camera, Lidar)
Many ADAS sensor ECUs (front radar, surround-view camera, lidar) use CAN-FD as the secondary redundant bus to the 100BASE-T1 Ethernet primary. The TCAN3403-Q1 in its compact SON-8 (DRB, 3×3 mm) fits on the small PCBAs inside camera and short-range radar housings where SOIC-8 cannot be placed. VIO 1.7-5.5 V permits direct interface to low-voltage radar MMICs and image sensor ISPs at 1.8 V, eliminating a level shifter and improving signal-integrity margin. The 5 Mbps CAN-FD rate offloads diagnostic and configuration data from the radar object list to the central ECU faster than classic 1 Mbps CAN, enabling quicker calibration after a windshield replacement. AEC-Q100 Grade 1 thermal range supports behind-the-grille mounting where under-hood temperatures exceed 100 °C in direct sunlight. The low standby current is critical when the host ECU parks the sensor, since must be re-awoken by the central node via CAN bus to warm up.
Recomendado
Battery Management Systems (BMS) and 12 V/48 V Networks
Battery management slaves in 12 V automotive batteries and emerging 48 V mild-hybrid systems use CAN-FD to report per-cell voltages, temperatures, and state-of-charge to the central BMS controller. The TCAN3403-Q1's ±58 V bus fault rating handles the transient overvoltage events on 48 V systems during load-dump and jump-start, where bus voltages can briefly swing well beyond ±40 V. The 3.3 V VCC matches the BMS slave MCU's rail directly, while VIO 1.7 V allows connection to ultra-low-power Cortex-M0+ MCUs that operate at 1.8 V. Low standby current (≤20 µA) suits months-long parked-vehicle storage, where the BMS must continue passive monitoring without draining the 12 V battery below its SOC cutoff. The SOIC-8 package's 8-pin count is small enough to fit on a single-cell BMS slave PCB, and the part's thermal shutdown protects the slave in fault conditions.
Recomendado
Medical and Test Equipment CAN-FD Interfaces
Although not its primary market, the TCAN3403-Q1 fits medical device CAN-FD buses inside hospital equipment (e.g., imaging CT scanners and patient monitors) where automotive-grade robustness provides long-term reliability. The 5 Mbps FD rate enables higher-resolution diagnostic streaming to the central operator console for ultrasound or PET imaging peripherals that share CAN with classic 1 Mbps legacy devices. The 3.3 V VCC lowers power dissipation in patient-contact equipment that must meet IEC 60601 thermal limits, and the small SON-8 package fits into wearable patient monitor docking stations. AEC-Q100 Grade 1 qualification gives medical designers a higher confidence margin than commercial-grade parts, which matters when medical-device MTBF targets exceed 100,000 hours. The VIO down to 1.7 V permits direct interface to low-power medical sensor ICs running at 1.8 V cores.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para TCAN3403-Q1 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | TCAN3404DRQ1 | TCAN3413DR | TCAN1043DRQ1 | TJA1043T/1 |
|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | NXP Semiconductors |
| Package | SOIC-8 (D) / SON-8 (DRB) | SOIC-8 (D) | SOIC-8 (D) | SOIC-8 (D) | SOIC-8 (D) |
| Supply Voltage (VCC) | 3.3 V | 3.3 V | 3.3 V | 5 V | 5 V |
| Bus Fault Voltage | ±58 V | ±58 V | ±58 V | ±58 V | ±58 V |
| Maximum Data Rate | 5 Mbps (CAN FD) | 5 Mbps (CAN FD) | 5 Mbps (CAN FD) | 5 Mbps (CAN FD) | 5 Mbps (CAN FD) |
| Low-Power Mode | Standby with bus wake | Shutdown (no bus wake) | Standby with bus wake | Standby with bus wake | Standby with bus wake |
| AEC-Q100 | Grade 1 Qualified | Grade 1 Qualified | Industrial grade | Grade 1 Qualified | Grade 0 / Grade 1 variants |
Diferenciadores clave
- 3.3 V single-supply VCC with internal VIO logic-level translation (frente a TCAN1043-Q1)
- Standby mode with bus wake versus full shutdown (frente a TCAN3404DRQ1)
- AEC-Q100 Grade 1 qualification (-40 °C to +125 °C) (frente a TCAN3413DR)
Notas de diseño
Place a 100 nF X7R decoupling capacitor on both VCC and VIO within 2 mm of the corresponding IC pin, using a short and wide trace to the ground plane. Keep the VCC and VIO capacitor grounds stitched directly to the ground plane via vias adjacent to the capacitor ground pad to minimize parasitic inductance, which is critical for transient response during bus arbitration at 5 Mbps CAN FD data rates. Estimated: at 5 Mbps with dominant-to-recessive switching, peak transient current is roughly 50 mA and a 1 nH parasitic will create a 50 mV ripple which is significant compared to the 1.5 V recessive threshold.
Do not assume that the bus-fault rating of ±58 V covers 24 V jump-start events indefinitely - the absolute maximum ratings specify transient surge only, and continuous exposure to >24 V requires external TVS protection. Ensure the STB pin is tied LOW (normal mode) via a 100 kΩ pulldown if no MCU GPIO is available, otherwise the part boots in standby mode and refuses to transmit. Verify pin 1 orientation against the SOIC-8 (D) or SON-8 (DRB) mechanical drawings in datasheet SLLSEC9 page 30+ before PCB layout - SOIC-8 and SON-8 mechanical outlines are different.
Use split termination (60 Ω + 60 Ω with a 4.7 nF X7R capacitor to ground at the bus midpoint) instead of a single 120 Ω resistor at each end of the bus. Split termination reduces high-frequency common-mode noise that couple from the bus into the cable harness and helps meet IEC 61000-4-2 ESD discharge and IEC 61000-4-4 electrical fast transient (EFT) tests. Add a common-mode choke (e.g., 100 µH at 100 MHz) in series with CANH and CANL inside the ECU enclosure for OEM EMC tests demanding greater than ±8 kV contact discharge.
The TCAN3403-Q1 itself dissipates well under 200 mW in typical automotive body-control use, so thermal-rise calculations are not the critical concern; however, the part's thermal shutdown threshold is around +170 °C junction. Ensure the PCB copper pour on the GND pin and the underside thermal pad (if used) is at least 100 mm² to keep junction rise below 10 °C even in sealed +85 °C ambient under-hood locations. Estimated: with θJA ≈ 100 C/W for SOIC-8 and a 200 mW dissipation, junction rise is approximately 20 °C above ambient.
Información de cumplimiento
AEC-Q100 Grade 1 qualified per TI datasheet SLLSEC9. RoHS and REACH compliant per TI product page. The -Q1 suffix indicates automotive-grade qualification; non-automotive equivalent is TCAN3413DR.
