Texas Instruments TCAN3404DRBRQ1

Overview

TCAN3404DRBRQ1 from Texas Instruments is an AEC-Q100 qualified 3.3V automotive CAN FD transceiver with ultra-low power shutdown mode, ±58V bus fault protection, and ISO 11898-2:2016 compliance. It supports classical CAN and CAN FD up to 8 Mbps, features symmetrical propagation delays (95–180 ns loop delay), and operates across –40°C to 150°C junction temperature for body control modules and ADAS gateways.

For engineers reviewing the TCAN3404DRBRQ1 datasheet, TCAN3404DRBRQ1 pinout, TCAN3404DRBRQ1 application, or TCAN3404DRBRQ1 equivalent, key selection criteria include its VSON-8 package with wettable flanks, shutdown-mode current of 2–5 µA, ±30V common-mode input range, and integrated TXD-dominant timeout and thermal shutdown protection.

Technical Context

The TCAN3404DRBRQ1 implements a high-speed differential driver/receiver pair compliant with ISO 11898-2:2016, supporting both classical CAN and CAN FD data rates up to 8 Mbps in simplified networks. Its architecture includes independent standby (STB) and shutdown (SHDN) control inputs, enabling three distinct operating modes: normal, low-power standby with remote wake-up, and ultra-low power shutdown-unique to the TCAN3404-Q1 variant.

It integrates fail-safe behavior during supply undervoltage (UVCC detection at 2.75 V rising / 2.5 V falling), thermal shutdown at 192°C, and robust bus protection including ±58V fault tolerance, ±8 kV ISO 10605 ESD on CANH/CANL, and dominant time-out (1.2–4.0 ms). The device exhibits tight timing symmetry (ΔtREC ≤ ±50 ns) and low skew (≤28 ns) critical for high-speed FD timing margin.

Key Specifications

Pinout & Package

TCAN3404DRBRQ1 is packaged in an 8-pin VSON (DRB) with wettable flanks for AOI compatibility. Dimensions are 3 mm × 3 mm, thermal pad connected to PCB ground via multiple vias.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar CAN FD transceiver applications.

Compared with TCAN3404DRBRQ1, TCAN3403DRBRQ1 adds I/O voltage flexibility but omits shutdown mode, while SN65HVD256DR offers lower cost and maturity for classical CAN-but lacks FD capability, ±58V protection, and VSON packaging.

Availability

TCAN3404DRBRQ1 is available at Aetrix Electronics and suitable for automotive body control modules, ADAS gateway units, infotainment head units, and advanced driver assistance systems requiring stable component supply across extended temperature and long product lifecycles.

Supply support for TCAN3404DRBRQ1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and automotive ICs, with decades of automotive qualification expertise and functional safety documentation support.

The TCAN340x-Q1 product line was designed specifically for high-reliability automotive CAN FD networks, emphasizing EMC robustness, extended temperature operation, and integrated protection features for ECU subsystems.

FAQ

What is the maximum CAN FD data rate supported by TCAN3404DRBRQ1?

The TCAN3404DRBRQ1 supports CAN FD up to 8 Mbps in simplified networks and is fully compliant with ISO 11898-2:2016 for classical CAN and optimized CAN FD performance at 2, 5, and 8 Mbps. Its symmetrical propagation delays and low skew ensure timing integrity at these speeds, making TCAN3404DRBRQ1 suitable for high-bandwidth ADAS sensor backbones and infotainment data streaming.

Does TCAN3404DRBRQ1 require an external VIO supply?

No, TCAN3404DRBRQ1 does not require an external VIO supply. Unlike the TCAN3403-Q1, it has no VIO pin; all logic I/Os (TXD, RXD, STB, SHDN) operate directly from the 3.3V VCC rail with compatible 0.3VCC/0.7VCC thresholds. This simplifies design and reduces BOM count-confirming TCAN3404DRBRQ1's role as the dedicated 3.3V-only variant in the family.

How does the shutdown mode of TCAN3404DRBRQ1 differ from standby mode?

TCAN3404DRBRQ1 offers two low-power states: standby mode (enabled via STB pin) draws 10–17 µA and retains remote wake-up capability via ISO-defined WUP patterns, while shutdown mode (activated by driving SHDN high) reduces current to 2–5 µA and powers off all internal blocks-including wake-up detection. This dual-mode architecture makes TCAN3404DRBRQ1 ideal for systems needing both quick-resume and deep-sleep battery conservation.

What package options are available for TCAN3404DRBRQ1, and why is VSON-8 preferred?

TCAN3404DRBRQ1 is offered in SOIC-8, SOT-23-8, and VSON-8 (DRB) packages. The VSON-8 variant (3 mm × 3 mm) features wettable flanks for automated optical inspection (AOI), superior thermal performance (RΘJB = 23.2 °C/W), and space savings over SOIC. Its compact footprint and manufacturability make TCAN3404DRBRQ1 especially suited for dense automotive ECUs where PCB area and thermal management are critical.

Is TCAN3404DRBRQ1 qualified for functional safety applications?

Yes, TCAN3404DRBRQ1 is functional safety-capable with documentation available to aid in functional safety system design per ISO 26262. It includes integrated safety mechanisms such as undervoltage detection (UVCC), TXD-dominant time-out, thermal shutdown (192°C), and fail-safe behavior during supply faults-enabling its use in ASIL-B and ASIL-C automotive subsystems when implemented within a validated safety concept. TCAN3404DRBRQ1's AEC-Q100 Grade 1 qualification further validates its reliability under harsh conditions.