Overview
The SN65HVD1040DRG4, produced by Texas Instruments, is a CAN (Controller Area Network) bus transceiver designed to meet or exceed the specifications of the ISO 11898 standard. This device provides differential transmit and receive capability for a CAN controller at signaling rates of up to 1 Mbps. It is engineered for operation in harsh environments, offering robust protection features such as ±12 kV ESD protection, bus-fault protection from –27 V to 40 V, and overtemperature shutdown. The SN65HVD1040 is characterized for operation from –40°C to 125°C, making it suitable for a wide range of industrial and automotive applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | -0.3 | - | 7 | V |
| Voltage at any bus terminal (CANH, CANL, SPLIT) | -27 | - | 40 | V |
| Receiver Output Current | -20 | - | 20 | mA |
| Voltage Input, Transient Pulse (CANH, CANL, SPLIT) | -200 | - | 200 | V |
| Junction Temperature | -55 | - | 170 | °C |
| Storage Temperature | -40 | - | 125 | °C |
| Operating Temperature Range | -40 | - | 125 | °C |
| Signaling Rate | - | - | 1 Mbps | - |
| Package Type | - | - | SOIC (8-pin) | - |
Key Features
- Improved drop-in replacement for the TJA1040
- ±12 kV ESD protection on the bus and split pins
- Low-current standby mode with bus wakeup: 5 µA typical
- Bus-fault protection from –27 V to 40 V
- Rugged split-pin bus stability
- Dominant time-out function
- Power-up/down glitch-free bus inputs and outputs
- High input impedance with low VCC
- Monotonic outputs during power cycling
- DeviceNet™ Vendor ID Number 806
- SPLIT output available as VCC/2 common-mode bus voltage bias for a split-termination network
Applications
- CAN Bus Applications
- Battery-Operated Applications
- Hand-Held Diagnostics
- Medical Scanning and Imaging
- HVAC
- Security Systems
- Telecom Base Station Status and Control
- SAE J1939 Standard Data Bus Interface
- NMEA 2000 Standard Data Bus Interface
- ISO 11783 Standard Data Bus Interface
- Industrial Automation
- DeviceNet Data Buses
Q & A
- What is the primary function of the SN65HVD1040?
The SN65HVD1040 is a CAN bus transceiver that provides differential transmit and receive capability for a CAN controller at signaling rates of up to 1 Mbps.
- What are the operating temperature ranges for the SN65HVD1040?
The device is characterized for operation from –40°C to 125°C.
- What kind of ESD protection does the SN65HVD1040 offer?
The SN65HVD1040 offers ±12 kV ESD protection on the bus and split pins.
- How does the low-power standby mode work in the SN65HVD1040?
In low-power bus-monitor standby mode, a dominant bit greater than 5 μs on the bus is passed by the bus-monitor circuit to the receiver output, allowing the local protocol controller to reactivate the device when needed.
- What is the purpose of the SPLIT output in the SN65HVD1040?
The SPLIT output is available as a VCC/2 common-mode bus voltage bias for a split-termination network.
- How does the dominant time-out function work in the SN65HVD1040?
The dominant time-out circuit prevents the driver from blocking network communication during a hardware or software failure by disabling the CAN bus driver if no rising edge is seen on TXD before the time-out period expires.
- What are some of the key applications for the SN65HVD1040?
The SN65HVD1040 is used in CAN bus applications, battery-operated applications, hand-held diagnostics, medical scanning and imaging, HVAC, security systems, and more.
- What is the significance of the DeviceNet™ Vendor ID Number 806 for the SN65HVD1040?
The DeviceNet™ Vendor ID Number 806 indicates that the SN65HVD1040 is compatible with DeviceNet™ networks.
- How does the SN65HVD1040 protect against bus faults?
The SN65HVD1040 offers bus-fault protection from –27 V to 40 V, ensuring robust operation in harsh environments.
- What is the typical current consumption in standby mode for the SN65HVD1040?
The typical current consumption in standby mode is 5 µA.
