TJA1040T-JSM

The TJA1040T meets or exceeds the specifications required for CAN applications as defined in the ISO11898 standard. As a CAN transceiver, the TJA1040T provides differential transmission and reception for CAN controllers at signal transfer rates up to 1 Mbps. The TJA1040T is designed to operate in harsh environments. Its bus pins feature ±12 kV ESD protection, support bus voltages from -58 V to 58 V, and the device incorporates built-in over-temperature and short-circuit protection circuits. The STB input (pin 8) is used to select between two operating modes: high-speed mode or low-power mode. High-speed operating mode can be selected by connecting the STB pin to ground. When a logic high level is applied to the STB pin of the TJA1040T, the device enters low-power bus monitor standby mode. While operating in this mode, a dominant bit on the bus lasting more than 5 µs is passed through the bus monitor circuit to the receiver output. The local protocol controller can then reactivate the device when it needs to transmit data to the bus.

Applications

• Multi-channel data acquisition
• Pressure sensors
• Dynamic analyzers
• Pattern analysis
• Industrial control
• Automotive and transportation
• Building automation
• HVAC systems

Key features

• Data rate up to 1M bps
• Dominant timeout function
• Over-temperature and short-circuit protection
• Low-power standby mode with bus wake-up capability
• Unpowered nodes do not disturb the bus
• Supports at least 110 nodes on the bus
• High EMI immunity
• Enhanced ESD protection for serial pins
• HBM: ±12kV
• IEC 61000-4-2: Contact discharge ±8kV, Air discharge ±12kV