Specifications
| Type | Description |
|---|---|
| Part Number | TCAN4550 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Package / Case | VQFN (20), 4.50 mm x 3.50 mm body |
| CAN FD Data Rate | up to 8 Mbps; integrated CAN FD transceiver/controller capability described in device description |
| CAN FD Controller Standard Support | ISO 11898-1:2015 and Bosch M_CAN Revision 3.2.1.1; CAN FD controller specifications |
| CAN Physical Layer Standard Support | ISO 11898-2:2016; high-speed CAN physical layer requirements |
| SPI Clock Speed | up to 18 MHz; CAN FD data rates up to 5 Mbps with SPI interface |
| Supported Operating Modes | Normal, standby, sleep, failsafe; device operating modes |
| Microprocessor Logic Support | 3.3 V to 5 V; input/output logic support |
| CAN Bus Fault Protection | ±42 V; wide operating ranges on CAN bus |
| CAN Bus Common-Mode Range | ±12 V; wide operating ranges on CAN bus |
| Pin Count | 20 pins; RGY package, VQFN top view |
| OSC1 Pin Function | External crystal oscillator or clock input; pin 1 |
| OSC2 Pin Function | External crystal oscillator output; connect to ground when using single input clock to OSC1; pin 20 |
| CANL Pin Function | Low-level CAN bus line; pin 10, high-voltage bus I/O |
| CANH Pin Function | High-level CAN bus line; pin 11, high-voltage bus I/O |
| VSUP Pin Function | Supply from battery; pin 14, high-voltage supply input |
| VCCOUT Pin Function | 5 V regulated output; pin 16, supply output |
| VIO Pin Function | Digital I/O voltage supply; pin 17, supply input |
| Absolute Maximum VSUP Supply Voltage | -0.3 to 42 V; -40°C ≤ TA ≤ 125°C unless otherwise noted |
| Absolute Maximum VIO Supply Voltage | -0.3 to 6 V; I/O level shifter supply, -40°C ≤ TA ≤ 125°C |
| Absolute Maximum VCCOUT Voltage | -0.3 to 6 V; 5 V output supply, -40°C ≤ TA ≤ 125°C |
| Absolute Maximum CAN Bus I/O Voltage | -42 to 42 V; CANH, CANL, -40°C ≤ TA ≤ 125°C |
| Absolute Maximum WAKE Pin Input Voltage | -0.3 to 42 V; -40°C ≤ TA ≤ 125°C |
| Absolute Maximum INH Pin Output Voltage | -0.3 to 42 V; -40°C ≤ TA ≤ 125°C |
| Absolute Maximum Logic Input Terminal Voltage | -0.3 to 6 V; -40°C ≤ TA ≤ 125°C |
| Absolute Maximum Digital Output Terminal Voltage | -0.5 to 6 V; -40°C ≤ TA ≤ 125°C |
| Absolute Maximum Digital Output Current | 8 mA; digital output current, -40°C ≤ TA ≤ 125°C |
| Absolute Maximum Inhibit Output Current | 4 mA; INH output current, -40°C ≤ TA ≤ 125°C |
| Absolute Maximum WAKE Current Due To Ground Shift | 3 mA; V(WAKE) ≤ V(GND) - 0.3 V |
| Absolute Maximum Junction Temperature | -40 to 150 °C; TJ |
| Storage Temperature | -65 to 150 °C; Tstg |
| HBM ESD Rating | ±4000 V; AEC-Q100-002 classification level 3A, all terminals except CANH, CANL, WAKE, terminals stressed with respect to GND |
| HBM ESD Rating For CANH And CANL | ±12000 V; classification level H2, terminals stressed with respect to GND |
| CDM ESD Rating | ±750 V; AEC-Q100-011 classification level C5, all terminals |
| IEC ESD Contact Discharge | ±8000 V; according to IBEE CAN EMC |
| IEC ESD Air Discharge | ±15000 V; according to IBEE CAN EMC |
| SAE J2962-2 ESD Contact Discharge | ±8000 V; third-party US3-approved EMC test facility |
| SAE J2962-2 ESD Air Discharge | ±15000 V; third-party US3-approved EMC test facility |
| ISO 7637 Transient Pulse 1 | -100 V; IBEE CAN EMC test specification, CANH, CANL, VSUP, and WAKE terminals |
| ISO 7637 Transient Pulse 2 | 75 V; IBEE CAN EMC test specification, CANH, CANL, VSUP, and WAKE terminals |
| ISO 7637 Transient Pulse 3a | -150 V; IBEE CAN EMC test specification, CANH, CANL, VSUP, and WAKE terminals |
| ISO 7637 Transient Pulse 3b | 100 V; IBEE CAN EMC test specification, CANH, CANL, VSUP, and WAKE terminals |
| Recommended VSUP Supply Voltage | 6 to 24 V; -40°C ≤ TA ≤ 125°C unless otherwise noted |
| Recommended VIO Logic Pin Supply Voltage | 3.135 to 5.25 V; -40°C ≤ TA ≤ 125°C unless otherwise noted |
| Recommended Digital Terminal High-Level Output Current | -2 mA; IOH(DO), -40°C ≤ TA ≤ 125°C |
| Recommended Digital Terminal Low-Level Output Current | 2 mA; IOL(DO), -40°C ≤ TA ≤ 125°C |
| Recommended INH Output Current | 1 mA; IO(INH), -40°C ≤ TA ≤ 125°C |
| Recommended FLTR Pin Capacitance | 300 nF; see Power Supply Recommendations |
| Recommended VCCOUT Supply Capacitance | 10 µF; see Power Supply Recommendations |
| Recommended External WAKE Pin Capacitance | 10 nF; -40°C ≤ TA ≤ 125°C unless otherwise noted |
| Thermal Shutdown Rising Threshold | 160 °C; TSDR |
| Thermal Shutdown Falling Threshold | 150 °C; TSDF |
| Thermal Shutdown Hysteresis | 10 °C; TSD(HYS) |
| Junction-To-Ambient Thermal Resistance | 35.2 °C/W; RGY package, 20 pins |
| Junction-To-Case Top Thermal Resistance | 28.1 °C/W; RGY package, 20 pins |
| Junction-To-Board Thermal Resistance | 12.8 °C/W; RGY package, 20 pins |
| Junction-To-Top Characterization Parameter | 0.3 °C/W; RGY package, 20 pins |
| Junction-To-Board Characterization Parameter | 12.7 °C/W; RGY package, 20 pins |
| Junction-To-Case Bottom Thermal Resistance | 1.1 °C/W; RGY package, 20 pins |
| Datasheet Status | request_only |
Product Overview
TCAN4550 is a Texas Instruments CAN FD controller transceiver for Signal_Chain applications that require an integrated CAN FD controller and high-speed CAN physical layer. Its CAN FD controller support is specified for ISO 11898-1:2015 and Bosch M_CAN Revision 3.2.1.1, while the physical layer supports ISO 11898-2:2016. CAN FD data rate capability is listed up to 8 Mbps, with SPI clock speed up to 18 MHz under the stated CAN FD data-rate condition.
The device is supplied in a VQFN (20) package with a 4.50 mm x 3.50 mm body. Pin functions include OSC1 for an external crystal oscillator or clock input, OSC2 for oscillator output or grounding when OSC1 is used as a single clock input, CANL and CANH bus lines, VSUP battery supply input, VCCOUT 5 V regulated output, and VIO digital I/O voltage supply.
Operating support includes Normal, standby, sleep, and failsafe modes, with 3.3 V to 5 V microprocessor logic support. Recommended operating values include 6 to 24 V on VSUP, 3.135 to 5.25 V on VIO, 300 nF on FLTR, 10 µF on VCCOUT, and 10 nF external WAKE capacitance.
Key Features
- CAN FD data rate up to 8 Mbps
- ISO 11898-1:2015 and Bosch M_CAN controller support
- ISO 11898-2:2016 high-speed CAN physical layer
- SPI clock speed up to 18 MHz
- Normal, standby, sleep, and failsafe operating modes
- 3.3 V to 5 V microprocessor logic support
- ±42 V CAN bus fault protection
- ±12 V CAN bus common-mode range
- 6 to 24 V recommended VSUP range
- 20-pin VQFN, 4.50 mm x 3.50 mm body
Typical Applications
- CAN FD controller interfaces
- High-speed CAN physical layer nodes
- Battery-supplied CAN bus modules
- SPI-connected CAN FD systems
- 3.3 V to 5 V logic designs
- Standby and sleep-mode CAN designs
Procurement Notes
When requesting a quote for TCAN4550, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For analog and signal-chain sourcing, supply voltage, bandwidth, accuracy, noise level, package, temperature grade, input/output configuration and qualification requirements should be verified before approval.
FAQ
What data rate does TCAN4550 support for CAN FD?
TCAN4550 supports CAN FD data rates up to 8 Mbps according to the integrated CAN FD transceiver/controller capability described in the extracted device facts.
Which CAN standards are listed for TCAN4550?
The CAN FD controller support is listed for ISO 11898-1:2015 and Bosch M_CAN Revision 3.2.1.1. The high-speed CAN physical layer support is listed for ISO 11898-2:2016.
What package is used for TCAN4550?
TCAN4550 is specified in a VQFN package with 20 pins and a 4.50 mm x 3.50 mm body. The pinout facts reference the RGY package top view.
What supply and logic ranges are recommended?
The recommended VSUP supply voltage is 6 to 24 V. The recommended VIO logic pin supply voltage is 3.135 to 5.25 V, with microprocessor logic support from 3.3 V to 5 V.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.