Texas Instruments TCAN241x-Q1 CAN FD System Basis Chips (SBC)
Texas Instruments TCAN241x-Q1 CAN FD System Basis Chips (SBC) provide a control area network flexible data rate capable (CAN FD) transceiver that meets the physical-layer requirements of ISO-11898:2-2024. The CAN FD transceiver supports data rates up to 8Mbps. The TCAN241x-Q1 integrates a buck regulator (VCC1) that can output either 3.3V or 5V, and provides up to 1A output current. The buck regulator integrates spread spectrum modulation to improve EMC performance. VCC2 LDO provides 5V output for loads up to 200mA. TCAN2411-Q1 supports Partial Networking by recognizing a selective wakeup frame (WUF)
The Texas Instruments TCAN241x-Q1 features LIMP, four local wake inputs, and four high-side switches. The high-side switch can be on or off, in 10-bit PWM, or timer-controlled. Using the GFO pin, it is possible to control an external CAN FD, a LIN transceiver, a CAN SBC, or a LIN SBC. The WAKE pins can be configured for static sensing, cyclic sensing (with HSS4 pin), and pulse-based for waking up. These devices provide EEPROM to store specific device configuration information, thus avoiding extensive reprogramming after power fluctuations.
Features
- AEC-Q100 qualified for automotive applications
- Meets the requirements of ISO 11898-2:2024 for CAN FD
- Functional Safety Quality-Managed
- Integrated 3.3V or 5V buck regulator (VCC1) with 1A output capability
- Pin-selectable output (3.3V or 5V) based on VSEL pin connection
- Switching frequency options from 1.8MHz to 2.4MHz to enable a smaller on-board inductor
- Integrated spread spectrum modulation to improve EMC performance
- 5V LDO regulator (VCC2) supporting up to 200mA with off-board capability and short-to-battery protection
- Multiple methods to wake up from Sleep mode
- CAN bus wakeup pattern (WUP)
- Local wakeup (LWU) using four WAKE pins
- Cyclic sensing wakeup using a high-side switch (HSS4)
- Selective wake (partial networking) capability, TCAN2411-Q1 only
- Digital wakeup using SW pin
- WAKE pins are configurable as ID pins to identify the ECU location in the vehicle
- Four high-side switches to support multiple loads and allow for cyclic sensing wake
- Fail-safe output pin (LIMP) that can also be used optionally as a low-side switch
- ±58V Bus fault protection
- Advanced CAN bus fault diagnostics
- Timeout, window, and Q&A watchdog support
- Access to the EEPROM to save device configuration
- Available in a 32-pin leadless package with a wettable flank for improved automated optical inspection (AOI) capability
Applications
- Body electronics and lighting
- Car access and security
- Hybrid, electric, and powertrain systems
- Industrial transportation
Videos
Functional Block Diagram
