A CAN Interface IC (Controller Area Network Interface IC) acts as the critical bridge in a network. It translates digital logic signals (TTL/CMOS) from a Microcontroller (MCU) into the differential voltage signals required by the CAN bus, and vice versa.
In simple terms: if the MCU is the “brain,” the CAN Interface IC is its “throat” and “ears.” It allows the brain to broadcast ideas and listen to the rest of the system.
IC-Mart Your Trusted Source for CAN Interface IC Chips
(from leading manufacturers)
I. Global Mainstream Manufacturers and Representative Models
1. Texas Instruments (TI) — The Versatile TCAN Series
Category
Typical Models
Key Features
General High-Speed CAN
TCAN1042 / SN65HVD230
Industry standards with bus protection; 3.3V/5V options.
CAN FD Enhanced
TCAN1043 / TCAN1051
Supports 5Mbps–8Mbps; features low-power standby and wake-up.
Isolated CAN
ISO1042 / ISO1044
Integrated capacitive isolation; 70V bus protection; high safety.
Integrated Controller
TCAN4550
Controller + Transceiver: Expands CAN FD via SPI interface.
System Basis Chip (SBC)
TCAN241x / TCAN284x
Integrated LDO and monitoring; compliant with ISO-11898:2-2024.
2. NXP Semiconductors — The Automotive “Gold Standard”
Category
Typical Models
Key Features
Classic CAN
TJA1050 / TJA1042
Massive global shipments; extreme stability; superior EMC.
CAN FD Era
TJA1443 / TJA1145
Optimized for autonomous driving; supports Partial Networking.
SIC (Signal Improvement)
TJA1462 / TJA1463
Solves ringing in large networks; boosts data rates in complex topologies.
System Basis Chip (SBC)
UJA1169 / UJA1132
High integration for Body Control Modules (BCM).
3. Microchip Technology — The Engineer’s Choice
Category
Typical Models
Key Features
Standalone Controller
MCP2515 / MCP2518FD
Industry standard via SPI; MCP2518FD supports CAN FD.
Standard Transceiver
MCP2561 / MCP2562
High cost-performance; used in industrial and aftermarket mods.
Integrated Controller+XCVR
MCP25625
Combines MCP2515 logic with a transceiver to save PCB space.
Automotive Specific
ATA6560 / ATA6561
Former Atmel line; optimized for high-temperature reliability.
4. Infineon Technologies — Power and Stability
Category
Typical Models
Key Features
High-Speed/FD XCVR
TLE9250 / TLE9351
Excellent ESD protection and EME (Electromagnetic Emission) control.
Mid-range SBC
TLE9261 / TLE9262
OPTIREGâ„¢ Series: Integrated regulators with CAN/LIN channels.
Modern Standards
TLE9351Bx
Fully compliant with ISO 11898-2:2024; supports 5Mbps.
5. Analog Devices (ADI) — The Specialist in Isolation
Following the acquisition of Maxim and Linear, ADI leads in high-voltage and high-reliability environments.
Category
Typical Models
Key Features
High-Perf Isolation
ADM3055E / ADM3057E
iCoupler® + isoPower®: Fully isolated without external power.
High-Voltage Protection
LTC2875 / LTC2873
±60V bus fault protection; high noise immunity for heavy industry.
Compact Transceiver
MAX13054
Legacy Maxim model; compact packaging with low standby current.
II. Chinese Domestic Manufacturers and Models
Chinese manufacturers offer excellent Pin-to-Pin (P2P) compatibility with NXP and TI, providing robust alternatives for global supply chains.
1. Leading Transceiver Vendors (Industrial & Automotive)
Manufacturer
Model Series
Target / Feature
Sitcores
SIT1044 / SIT1042 / SIT1050
Domestic benchmark; SIT1044 widely used in 5Mbps CAN FD.
III. CAN Interface IC Core Functions and Application Scenarios
1. Core Functionality
Physical Layer (Transceiver): Converts digital signals (TXD/RXD) to differential signals (CAN_H/CAN_L). Provides ESD, short-circuit, and over-voltage protection.
Data Link Layer (Controller): Manages bit timing, arbitration, framing, and error checking. Note: Most modern MCUs integrate this internally.
2. Key Applications
Automotive Electronics: The primary market. Includes Body Control (BCM), Powertrain (ECU/BMS), and Chassis (ABS/ESP). Isolated CAN is essential for EV high-voltage systems.
Industrial Automation: Robotics, PLC networks, and elevators. High noise immunity is critical here.
Energy & Heavy Machinery: Solar inverters, EV charging piles, and construction equipment (excavators/cranes).
Emerging Fields: UAVs (drones), medical imaging (MRI), and smart building HVAC systems.
IV. CAN Interface IC Classification
1. By Architectural Integration
Category
Logic
Typical Models
Manufacturers
Standard Transceiver
Physical layer only; requires MCU controller.
SN65HVD230 / TJA1044
TI, NXP
Standalone Controller
Protocol logic via SPI/I2C; expands CAN ports.
MCP2515 / SJA1000
Microchip, NXP
Integrated Controller
Controller + Transceiver in one; SPI interface.
TCAN4550 / MCP25625
TI, Microchip
System Basis Chip (SBC)
XCVR + Power Management + Watchdog.
TLE9261 / UJA1169
Infineon, NXP
2. By Protocol Standard
Category
Logic
Typical Models
Manufacturers
Classic CAN
Up to 1 Mbps; legacy industrial/auto use.
MCP2551 / MAX13054
Microchip, ADI
CAN FD
5–8 Mbps; high data rates for modern cars.
TJA1443 / TCAN1051-Q1
NXP, TI
CAN SIC
Reduces cable reflection; ideal for complex nets.
TJA1463 / TPT1462
NXP, 3PEAK
3. By Electrical Features & Protection
Category
Logic
Typical Models
Manufacturers
Isolated
Protects low-voltage logic from high-voltage surges.
