Overview
The SN65HVD251P is a high-speed CAN (Controller Area Network) transceiver manufactured by Texas Instruments. This device is designed to interface a single-ended CAN controller with the differential CAN bus, making it suitable for industrial, building automation, and automotive applications. It operates in accordance with the ISO 11898 Standard and provides robust protection against harsh environmental conditions, including cross-wire, overvoltage, and loss of ground protection up to ±36 V. The transceiver supports signaling rates up to 1 Mbps and features thermal shutdown protection, glitch-free power-up and power-down, and low-current standby mode.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | PDIP (P) | - |
| Pins | 8 | - |
| Operating Temperature Range | -40 to 125 | °C |
| Supply Voltage (VCC) | 4.5 to 5.5 | V |
| Signaling Rate | Up to 1 Mbps | - |
| Bus-Fault Protection | ±36 V | - |
| ESD Protection | ±14 kV HBM | - |
| Standby Current | 200 µA (typical) | - |
| Junction Temperature | 145 °C | - |
Key Features
- Drop-in improved replacement for 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.
- DeviceNet Vendor ID #806.
- Slope control and mode logic via Rs pin.
Applications
- CAN Data Buses.
- Industrial Automation.
- SAE J1939 Standard Data Bus Interface.
- NMEA 2000 Standard Data Bus Interface.
Q & A
- What is the SN65HVD251P used for?
The SN65HVD251P is used as a CAN transceiver to interface a single-ended CAN controller with the differential CAN bus in various applications such as industrial automation, automotive, and building automation.
- What are the key protection features of the SN65HVD251P?
The device features bus-fault protection up to ±36 V, overtemperature protection, and ESD protection exceeding 14 kV HBM.
- What is the maximum signaling rate supported by the SN65HVD251P?
The SN65HVD251P supports signaling rates up to 1 Mbps.
- How does the Rs pin function in the SN65HVD251P?
The Rs pin selects one of three different modes of operation: high-speed mode, slope control mode, or low-power mode, depending on the connection to ground or VCC.
- What is the typical standby current of the SN65HVD251P?
The typical standby current is 200 µA.
- Does the SN65HVD251P meet any specific standards?
Yes, it meets or exceeds the ISO 11898 Standard.
- What is the operating temperature range of the SN65HVD251P?
The operating temperature range is -40°C to 125°C.
- How many nodes can be connected to the bus using the SN65HVD251P?
Up to 120 nodes can be connected to the bus due to its high input impedance.
- Is the SN65HVD251P suitable for hot-plugging?
Yes, it provides glitch-free power-up and power-down CAN bus protection for hot-plugging.
- What is the DeviceNet Vendor ID for the SN65HVD251P?
The DeviceNet Vendor ID is #806.
