SN65HVD1040AQDRQ1

The SN65HVD1040A device meets or exceeds the specifications of the ISO 11898 standard for use in applications employing a Controller Area Network (CAN). The device is qualified for use in automotive applications. As a CAN transceiver, this device provides differential transmit capability to the bus and differential receive capability to a CAN controller at signaling rates up to 1 megabit per second (Mbps). Designed for operation in especially harsh environments, the SN65HVD1040A-Q1 features cross-wire, overvoltage, and loss of ground protection from -27V to 40V, overtemperature protection, a –12-V to 12-V common-mode range, and can withstand voltage transients according to ISO 7637. STB (pin 8) provides two different modes of operation: high-speed mode or low-current standby mode. The highspeed mode of operation is selected by connecting STB (pin 8) to ground. If a high logic level is applied to the STB pin of the SN65HVD1040A-Q1, the device enters a low-current standby mode, while the receiver remains active in a low-power bus-monitor standby mode. In the low-current standby mode, a dominant bit greater than 5 μs on the bus is passed by the bus-monitor circuit to the receiver output. The local protocol controller may then reactivate the device when it needs to transmit to the bus. A dominant time-out circuit in the SN65HVD1040A-Q1 prevents the driver from blocking network communication with a hardware or software failure. The time-out circuit is triggered by a falling edge on TXD (pin 1). If no rising edge is seen before the time-out constant of the circuit expires, the driver is disabled. The circuit is then reset by the next rising edge on TXD. SPLIT (pin 5) is available as a VCC/2 common-mode bus voltage bias for a split-termination network.

Applications

• GMW3122 Dual-Wire CAN Physical Layers
• SAE J2284 High-Speed CAN for Automotive Applications
• SAE J1939 Standard Data Bus Interface
• ISO 11783 Standard Data Bus Interface
• NMEA 2000 Standard Data Bus Interface

Key features

• Qualified for Automotive Applications
• AEC-Q100 Test Guidance With the Following:
• Device Temperature Grade 0: -40°C to +150°C Ambient Operating Temperature
• Device HBM ESD Classification Level: 3A Level for All Pins Except 5, 6, and 7; 3B Level for Pins 5, 6 and 7
• Device CDM ESD Classification Level C6
• Device MM ESD Classification Level M3
• Improved Drop-In Replacement for TJA1040
• Meets or Exceeds the Requirements of ISO 11898-5
• GIFT/ICT Compliant
• ESD Protection up to ±12 kV (Human-Body Model) on Bus Pins
• Low-Current Standby Mode With Bus Wake-Up, < 12 μA Maximum
• High Electromagnetic Compliance (EMC)
• Bus-Fault Protection of -27V to 40V
• Dominant Time-Out Function
• Thermal Shutdown Protection
• SPLIT Voltage Source for Common-Mode Stabilization of Bus Through Split Termination
• Digital Inputs Compatible With 3.3-V and 5-V Microprocessors
• Power-Up and Power-Down Glitch-Free Bus Inputs and Outputs
• High Input Impedance With Low VCC Monotonic Outputs During Power Cycling