Overview
The SN65HVD1050MDREP from Texas Instruments is a high-performance, EMC-optimized CAN (Controller Area Network) transceiver designed for use in harsh environments. This device is an improved replacement for the TJA1050 and meets or exceeds the specifications of the ISO 11898 standard for CAN applications. It features high electromagnetic immunity (EMI) and very low electromagnetic emissions (EME), making it suitable for industrial automation, automotive, and other demanding applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage | -0.3 | 7 | V | |
| Voltage Range at Any Bus Terminal (CANH, CANL, Vref) | -27 | 40 | V | |
| Receiver Output Current | 20 | mA | ||
| Voltage Input, Transient Pulse (CANH, CANL) | -200 | 200 | V | |
| Voltage Input Range (TXD, S) | -0.5 | 6 | V | |
| Junction Temperature | -55 | 170 | °C | |
| Signaling Rate | 1 | Mbps | ||
| Propagation Delay Time (Low to High) | 25 | 65 | 120 | ns |
| Propagation Delay Time (High to Low) | 25 | 45 | 120 | ns |
| Differential Output Signal Rise Time | 25 | 50 | ns | |
| Differential Output Signal Fall Time | 50 | ns |
Key Features
- High Electromagnetic Immunity (EMI) and very low Electromagnetic Emissions (EME)
- Meets or exceeds the specifications of the ISO 11898 standard for CAN applications
- CAN bus-fault protection from –27 V to 40 V
- Dominant time-out function to prevent driver blockage due to hardware or software failure
- Power-up and power-down glitch-free CAN bus inputs and outputs
- High input impedance with low VCC
- Monotonic outputs during power cycling
- Overtemperature protection and thermal shutdown
- Listen-only silent mode with logic control via the S pin
- VCC/2 voltage reference output available
Applications
- Industrial Automation
- DeviceNet™ Data Buses (Vendor ID #806)
- SAE J2284 High-Speed CAN for Automotive Applications
- SAE J1939 Standard Data Bus Interface
- ISO 11783 Standard Data Bus Interface
Q & A
- What is the primary function of the SN65HVD1050MDREP?
The SN65HVD1050MDREP is a CAN transceiver that provides differential transmit and receive capabilities for CAN networks.
- What standards does the SN65HVD1050MDREP comply with?
The device meets or exceeds the specifications of the ISO 11898 standard for CAN applications.
- What is the operating temperature range of the SN65HVD1050MDREP?
The device is characterized for operation from –55°C to 125°C.
- What kind of protection does the SN65HVD1050MDREP offer against bus faults?
The device offers CAN bus-fault protection from –27 V to 40 V.
- How does the dominant time-out function work in the SN65HVD1050MDREP?
The dominant time-out function prevents the driver from blocking network communication by disabling the driver if no rising edge is seen on TXD before the time-out constant expires.
- What is the purpose of the silent mode in the SN65HVD1050MDREP?
The silent mode allows the device to enter a listen-only state where the driver is switched off, but the receiver remains functional, controlled by the logic level on the S pin.
- What kind of electromagnetic performance does the SN65HVD1050MDREP offer?
The device features high electromagnetic immunity (EMI) and very low electromagnetic emissions (EME).
- What is the maximum signaling rate supported by the SN65HVD1050MDREP?
The device supports signaling rates up to 1 megabit per second (Mbps).
- What type of voltage reference is available on the SN65HVD1050MDREP?
A VCC/2 voltage reference output is available to stabilize the output common mode voltage point.
- What are some common applications for the SN65HVD1050MDREP?
Common applications include industrial automation, DeviceNet™ data buses, and high-speed CAN for automotive applications.
