TCAN3404-Q1 - Automotive 3.3V CAN FD Transceiver | Texas Instruments
N.º da peça: TCAN3404-Q1 ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $1.65 | $1,65 |
| 10 | $1.49 | $14,90 |
| 100 | $1.32 | $132,00 |
| 500 | $1.18 | $590,00 |
| 1.000 | $1.05 | $1.050,00 |
| 3.000 | $0.92 | $2.760,00 |
TCAN3404-Q1 Visão geral
A CAN FD transceiver, also called a CAN physical-layer (PHY) device, is the interface between a digital CAN controller (or microcontroller with integrated CAN MAC) and the differential CAN bus wires. It converts the controller's transmit (TXD) and receive (RXD) single-ended logic signals into differential bus voltages (CANH, CANL), and provides bus arbitration, fault protection, and ESD handling for the harsh automotive electrical environment. The TCAN3404-Q1 belongs to the broader category hierarchy of: CAN transceiver → CAN interface IC → serial interface IC → wired connectivity IC → interface & connectivity semiconductor. The 3.3V (rather than 5V) supply rail reduces power loss in modern automotive MCU domains.
Key features include ±58V bus fault tolerance (industry-leading for the 8-pin TSOT-23 form factor), ±25V common-mode range on CANH/CANL, 8 kV HBM ESD protection on bus pins, low-loop delay to support 8 Mbps CAN FD frames, and ultra-low-power shutdown current. Internal pull-down resistors on STB and SHDN default the device to safe operating states if pins are left floating. The TSOT-23-8 package measures 2.9 mm × 1.6 mm and is well suited for space-constrained body electronics and zonal ECU modules.
Architecturally, the TCAN3404-Q1 uses a single 3.3V supply rail, eliminating the need for an external charge pump or 5V regulator that legacy 5V CAN transceivers sometimes require. The transmitter and receiver share a common-mode reference and slope-control circuitry, allowing fast bit transitions while minimizing EMI on unshielded twisted-pair automotive harnesses. The device is designed for robust coexistence on mixed 3.3V/5V CAN networks, with a recessive bias that minimizes error frames during arbitration.
Typical applications include automotive body control modules, gateway ECUs, ADAS sensor CAN-FD links, battery management system (BMS) communication buses, and infotainment CAN backbones. It is also used in industrial CAN-FD nodes and heavy-truck J1939 networks where ±58V load-dump survival is required. The shutdown mode is particularly useful in battery-powered systems that need to enter sleep states with the bus still biased.
Designers should pair the TCAN3404-Q1 with a 3.3V CAN-capable MCU (such as TI's TMS570 or C2000 families) and provide a common-mode choke plus split termination on the bus to maximize radiated-emissions margin. Care must be taken not to leave SHDN floating in mission-critical designs; tying it to logic high enables ultra-low-power mode when the ECU shuts down.
This page aggregates distributor stock, verified drop-in replacement MPNs (including the closely-related TCAN3403-Q1 and TCAN3413-Q1), and engineering design notes that supplement the manufacturer datasheet with PCB-layout, ESD, and mixed-voltage coexistence guidance.
Alternativas drop-in para TCAN3404-Q1 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com TCAN3404-Q1 (mesmo formato e footprint).
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
TCAN3403-Q1
✅ Drop-In✓ Em estoque
$1.1 / unidade
Ver ficha técnica →TCAN3413-Q1
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TCAN3304-Q1
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TCAN1044-Q1
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
TCAN3404-Q1 Especificações
| Product Type | CAN FD Transceiver |
| Tensão de alimentação | 3 V to 3.6 V |
| Data Rate (Max) | 8 Mbps (CAN FD) |
| Standard | ISO 11898-2:2016 |
| Bus Fault Protection | ±58 V |
| Common-Mode Range | ±25 V |
| ESD Protection (Bus Pins, HBM) | ±8 kV |
| Temperatura de operação | -40C to +125C |
| Low-Power Modes | Standby (STB) + Shutdown (SHDN) |
| Corrente de desligamento | Ultra-low (per datasheet) |
| Encapsulamento | TSOT-23-8 (DDF) |
| Package Dimensions | 2.9 mm × 1.6 mm |
| Tipo de montagem | Surface Mount |
| AEC-Q100 | Qualified (Automotive) |
| Status RoHS | Compliant |
| Número de pinos | 8 |
| TXD/RXD Logic Levels | 3.3 V CMOS |
| Propagation Delay | Low-loop delay (CAN FD compatible) |
Configuração de pinos do TCAN3404-Q1
| Pino 1 | VCC — 3.3V supply input |
| Pino 2 | GND — Ground |
| Pino 3 | TXD — Transmit data input from controller (logic-level) |
| Pino 4 | RXD — Receive data output to controller (logic-level) |
| Pino 5 | SHDN — Shutdown mode control (active-high; internal pull-down) |
| Pino 6 | CANL — CAN bus low (differential) |
| Pino 7 | CANH — CAN bus high (differential) |
| Pino 8 | STB — Standby mode control (active-high; internal pull-down) |
Aplicações típicas
TCAN3404-Q1 é adequado para 6 aplicaçãos: Automotive Body Control Modules (BCM), Automotive Gateway ECU, ADAS Sensor CAN-FD Links, Battery Management System (BMS) Communication, Heavy-Truck and Industrial CAN-FD Networks (J1939), Infotainment CAN-FD Backbone.
Automotive Body Control Modules (BCM)
The TCAN3404-Q1's 3.3V supply and ±58V bus-fault tolerance make it ideal for body control modules that aggregate CAN FD traffic from door zones, lighting, and climate subsystems. Its AEC-Q100 qualification satisfies automotive OEM validation programs, while the TSOT-23-8 (DDF) footprint saves PCB area versus larger SO-8 CAN transceivers. Placed between the MCU's CAN-FD controller and the twisted-pair harness, the device gates the bus to ultra-low-power shutdown when the BCM sleeps, draining minimal quiescent current on the battery. CAN FD 8 Mbps support enables firmware update over CAN (UDS on CAN-FD) at high throughput, shortening garage reprogramming time.
Recomendado
Automotive Gateway ECU
In zonal or central gateways, the TCAN3404-Q1 serves as a sub-bus transceiver on 3.3V CAN-FD local lines that connect sensors and actuators to a gateway processor. The ultra-low-power shutdown current (SHDN pin-driven) lets unused channels enter sleep when traffic migrates to other busses, helping meet the always-on quiescent-current budgets of modern zonal architectures. ±58V fault tolerance and ±8 kV HBM ESD on bus pins obviate heavy TVS protection, reducing BOM cost. Pin-to-pin compatibility with the TCAN3403-Q1 allows gateway designers to choose between standby-only and standby+shutdown modes without respinning the PCB.
Recomendado
ADAS Sensor CAN-FD Links
Advanced driver-assistance systems (ADAS) such as radar, lidar, and surround-view modules use CAN FD as a backbone for sensor data and configuration. The TCAN3404-Q1's low-loop-delay and 8 Mbps CAN-FD capability meet the timing margin required for time-sensitive ADAS messages, while its 3.3V I/O matches modern sensor MCUs without level shifters. ±58V bus pin protection prevents inductive transients from nearby motors or solenoids from damaging the transceiver. The compact TSOT-23-8 (DDF) package fits into space-constrained sensor housings and AEC-Q100 Grade 1 supports the -40C to +125C operating range required under hood and behind bumpers.
Recomendado
Battery Management System (BMS) Communication
Battery Management Systems for EVs and stationary storage often run a CAN-FD bus inside the pack to communicate module voltages and temperatures to the main BMS controller. The TCAN3404-Q1's ultra-low shutdown current (driven by SHDN) preserves pack-level quiescent current when the entire system is powered down, while its 3.3V supply matches modern BMS MCUs. The ±58V bus-pin tolerance absorbs voltage spikes from the high-current contactor circuits typical in EV battery packs. AEC-Q100 qualification (Grade 1) ensures reliability at -40C to +125C ambient temperatures encountered near power-electronics assemblies.
Recomendado
Heavy-Truck and Industrial CAN-FD Networks (J1939)
Heavy-duty trucks, buses, and off-highway equipment using SAE J1939 (which runs on top of CAN, increasingly with CAN-FD) benefit from the TCAN3404-Q1's ±58V bus pin standoff, well above the 24V truck battery transients. The TSOT-23-8 (DDF) footprint is the same as the TCAN3403-Q1 and TCAN3304-Q1, giving designers flexibility to upgrade legacy classical-CAN nodes to CAN-FD without board respins. AEC-Q100 qualification and ±8 kV HBM ESD protect against the harsh vibration and electrical-noise environments in heavy machinery cabs and chassis. The SHDN pin enables low-sleep-current modes for equipment that parks for months between uses.
Recomendado
Infotainment CAN-FD Backbone
Infotainment head units, instrument clusters, and telematics modules exchange audio routing, display configuration, and cloud-telematics data over a CAN-FD backbone, where the TCAN3404-Q1 provides the physical-layer interface to a 3.3V MCU. The low-loop-delay transmission-line characteristics at 8 Mbps keep the bit-timing budget intact for high-throughput firmware updates between ECUs. ±58V bus fault protection guards the bus pins from alternator load-dump events in 12V/24V systems. The ultra-small TSOT-23-8 package supports tight BOMs in cost-sensitive infotainment designs while still providing AEC-Q100 reliability.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para TCAN3404-Q1 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | TCAN3403-Q1 | TCAN3413-Q1 | TCAN3304-Q1 | TCAN1044-Q1 |
|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments (same family) | Texas Instruments (newer family) | Texas Instruments (classical CAN) | Texas Instruments (5V CAN) |
| Package | TSOT-23-8 (DDF) | TSOT-23-8 (DDF) - same | TSOT-23-8 (DDF) - same | TSOT-23-8 (DDF) - same | TSOT-23-8 (DDF) - same |
| Supply Voltage | 3.0V to 3.6V (3.3V) | 3.0V to 3.6V (same) | 3.0V to 3.6V (same) | 3.0V to 3.6V (same) | 4.5V to 5.5V (5V) |
| CAN-FD Support | Yes (up to 8 Mbps) | Yes (up to 8 Mbps) | Yes (up to 8 Mbps) | No (classical CAN, 1 Mbps) | Yes (up to 5 Mbps) |
| SHDN Pin | Yes (pin 5) | No | Yes (pin 5) | No | No (standby only) |
| Bus Fault Tolerance | ±58V | ±58V | ±58V | ±58V | ±58V |
| AEC-Q100 | Qualified | Qualified | Qualified | Qualified | Qualified |
| ESD (Bus Pins, HBM) | ±8 kV | ±8 kV | ±8 kV (improved) | ±8 kV | ±8 kV |
Principais diferenciais
- Extra SHDN pin for ultra-low-power shutdown (vs TCAN3403-Q1)
- CAN FD 8 Mbps (vs TCAN3304-Q1)
- 3.3V single-supply operation (vs TCAN1044-Q1)
Notas de projeto
Place 100 nF decoupling capacitor as close as possible to VCC (pin 1) of the TSOT-23-8 package; add a 10-100 uF bulk cap on the same 3.3V rail within 1 cm. Route CANH and CANL as a 100-120 Ω characteristic-impedance differential pair, keeping symmetry and avoiding sharp 90° bends. Place split termination (60 Ω plus 4.7 nF at each end) about 5 mm from the connector to attenuate common-mode noise.
Estimated: at 8 Mbps CAN FD with bus length 20 m, the bit time is 125 ns; the TCAN3404-Q1's propagation delay is referenced in the TI datasheet as well within the bit-timing budget. For mixed 3.3V/5V CAN networks, add a 4.7 nF X7R bypass at each node to filter common-mode noise and ensure recessive-bias alignment (per TI application note SLLA636).
Do not leave SHDN (pin 5) floating in mission-critical designs even though an internal pull-down exists - noisy environments may toggle the pin. Drive SHDN explicitly from an MCU GPIO for shutdown sequencing, and verify logic polarity (active-high) against the latest datasheet revision. Connecting a 5V bus transceivers' CANH/CANL to a system with TCAN3404-Q1 is supported but requires recessive-bias testing on a real network.
Informações de conformidade
AEC-Q100 qualified per TI datasheet (automotive -Q1 suffix). RoHS compliant per TI product page; halogen-free and conflict-mineral declarations not in the verified snippet - mark unknown.
