Overview
The SN65HVD251DG4 from Texas Instruments is a high-performance CAN (Controller Area Network) transceiver designed for use in harsh environments. It is compliant with the ISO 11898 standard and provides differential transmit and receive capabilities to a CAN controller at speeds up to 1 megabit per second (Mbps). This device is an improved replacement for the PCA82C250 and PCA82C251, offering enhanced protection and performance features. It is particularly suited for industrial, building automation, and automotive applications where robust communication is essential.
Key Specifications
| Parameter | Value |
|---|---|
| Data Rate | Up to 1 Mbps |
| Operating Supply Voltage | 4.5 V to 5.5 V |
| Package | SOIC-8 |
| Mounting Style | SMD/SMT |
| Operating Temperature | -40°C to 125°C |
| Bus-Fault Protection | ±36 V |
| Common-Mode Range | -7 V to 12 V |
| Transients Tolerance | ±200 V |
| ESD Protection | Exceeds 14 kV HBM |
Key Features
- Drop-In Improved Replacement for the PCA82C250 and PCA82C251
- Bus-Fault Protection of ±36 V
- Meets or Exceeds ISO 11898 Standard
- Signaling Rates up to 1 Mbps
- High Input Impedance Allows up to 120 Nodes on a Bus
- Bus Pin ESD Protection Exceeds 14 kV HBM
- Unpowered Node Does Not Disturb the Bus
- Low-Current Standby Mode: 200-μA Typical
- Thermal Shutdown Protection
- Glitch-Free Power-Up and Power-Down CAN Bus Protection for Hot-Plugging
Applications
- CAN Data Buses
- Industrial Automation
- SAE J1939 Standard Data Bus Interface
- NMEA 2000 Standard Data Bus Interface
- Automotive Applications
- Building Automation
Q & A
- What is the primary function of the SN65HVD251DG4?
The SN65HVD251DG4 is a CAN transceiver that provides differential transmit and receive capabilities to a CAN controller.
- What is the maximum data rate supported by the SN65HVD251DG4?
The device supports data rates up to 1 megabit per second (Mbps).
- What is the operating supply voltage range for the SN65HVD251DG4?
The operating supply voltage range is from 4.5 V to 5.5 V.
- What type of package does the SN65HVD251DG4 come in?
The device is packaged in an SOIC-8 package.
- What are the key protection features of the SN65HVD251DG4?
The device features bus-fault protection of ±36 V, overtemperature protection, and tolerance to transients of ±200 V.
- Can the SN65HVD251DG4 operate in harsh environments?
Yes, it is designed for operation in harsh environments and meets or exceeds the ISO 11898 standard.
- How does the Rs pin affect the operation of the SN65HVD251DG4?
The Rs pin selects one of three different modes of operation: high-speed, slope control, or low-power mode.
- What is the typical current consumption in standby mode?
The typical current consumption in standby mode is 200 μA.
- Does the SN65HVD251DG4 support hot-plugging?
Yes, it provides glitch-free power-up and power-down CAN bus protection for hot-plugging.
- What are some common applications for the SN65HVD251DG4?
Common applications include industrial automation, automotive systems, and building automation.
