Overview
The SN65HVD1040D, produced by Texas Instruments, is a low-power CAN (Controller Area Network) bus transceiver designed to meet or exceed the specifications of the ISO 11898 standard. This device is an improved drop-in replacement for the TJA1040 and is optimized for use in harsh environments. It provides differential transmit and receive capability for a CAN controller at signaling rates up to 1 Mbps. The SN65HVD1040D features a low-current standby mode with bus wakeup, making it suitable for battery-operated and power-sensitive applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage | -0.3 | - | 7 | V |
| Voltage at any bus terminal (CANH, CANL, SPLIT) | -27 | - | 40 | V |
| Receiver Output Current | -20 | - | 20 | mA |
| Voltage Input (TXD, STB) | -0.5 | - | 6 | V |
| Junction Temperature | -55 | - | 170 | °C |
| Storage Temperature | -40 | - | 125 | °C |
| Operating Temperature Range | -40 | - | 125 | °C |
| Supply Voltage Range | 4.75 | - | 5.25 | V |
| Data Rate | - | - | 1 Mbps | - |
| Package Type | - | - | 8-SOIC (0.154", 3.90mm Width) | - |
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
- Dominant time-out function to prevent network blockage
- Power-up/down glitch-free bus inputs and outputs
- High input impedance with low VCC
- Monotonic outputs during power cycling
- Thermal shutdown at 190°C to prevent catastrophic failure
- Reference output voltage (VCC/2) for 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 SN65HVD1040D? The SN65HVD1040D is a CAN bus transceiver that provides differential transmit and receive capability for a CAN controller.
- What is the maximum data rate supported by the SN65HVD1040D? The device supports data rates up to 1 Mbps.
- What is the operating temperature range of the SN65HVD1040D? The device operates from –40°C to 125°C.
- What kind of ESD protection does the SN65HVD1040D offer? The device offers ±12 kV ESD protection on the bus and split pins.
- How does the SN65HVD1040D handle thermal issues? The device features thermal shutdown at 190°C to prevent catastrophic failure.
- What is the purpose of the SPLIT output pin? The SPLIT output pin provides a reference voltage (VCC/2) for a split-termination network.
- What is the dominant time-out function in the SN65HVD1040D? The dominant time-out function prevents the transceiver from blocking network communication if TXD is held dominant longer than the specified time-out period.
- How does the device enter low-power mode? The device enters low-power bus-monitor standby mode when a high logic level is applied to the STB pin.
- What are some common applications of the SN65HVD1040D? Common applications include CAN bus, battery-operated devices, hand-held diagnostics, medical scanning, HVAC, security systems, and industrial automation.
- What is the package type of the SN65HVD1040D? The device is available in an 8-SOIC (0.154", 3.90mm Width) package.
