Overview
The SN65HVD251DR is a high-speed CAN (Controller Area Network) transceiver produced by Texas Instruments. This device is designed to interface a single-ended CAN controller with the differential CAN bus, adhering to the ISO 11898 standard. It is optimized for operation in harsh environments, offering robust protection against cross-wire, overvoltage, and loss of ground 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 | SOIC (D) | - |
| Pins | 8 | - |
| Operating Temperature Range | -40 to 125 | °C |
| Signaling Rate | Up to 1 Mbps | - |
| Bus-Fault Protection | ±36 V | - |
| Common-Mode Range | -7 to 12 V | - |
| Transient Tolerance | ±200 V | - |
| Low-Current Standby Mode | 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
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 SN65HVD251DR used for?
The SN65HVD251DR is used as a high-speed CAN transceiver to interface a single-ended CAN controller with the differential CAN bus, adhering to the ISO 11898 standard.
- What are the key features of the SN65HVD251DR?
Key features include bus-fault protection, high input impedance, ESD protection, low-current standby mode, and thermal shutdown protection.
- What is the operating temperature range of the SN65HVD251DR?
The operating temperature range is -40°C to 125°C.
- What signaling rates does the SN65HVD251DR support?
The device supports signaling rates up to 1 Mbps.
- How many nodes can be connected to the bus using the SN65HVD251DR?
Up to 120 nodes can be connected to the bus due to its high input impedance.
- What is the common-mode range of the SN65HVD251DR?
The common-mode range is -7 V to 12 V.
- Does the SN65HVD251DR have thermal shutdown protection?
- What is the low-current standby mode current of the SN65HVD251DR?
The low-current standby mode current is typically 200 µA.
- Is the SN65HVD251DR qualified for automotive applications?
- How does the Rs pin affect the operation of the SN65HVD251DR?
The Rs pin selects one of three different modes of operation: high-speed, slope control, or low-power mode.
