Overview
The SN65HVD233MDREP is a 3.3-V CAN (Controller Area Network) transceiver produced by Texas Instruments. This device is designed to interface between a CAN controller and a differential CAN bus, adhering to the ISO 11898 standard. It is optimized for operation in harsh environments, making it suitable for various industrial, automotive, and building automation applications. The transceiver supports data rates up to 1 Mbps and features robust protection mechanisms such as bus-pin fault protection exceeding ±36 V and ESD protection exceeding ±16 kV HBM.
Key Specifications
| Parameter | Min | Typical | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | -0.3 | - | 7 | V |
| Bus Output Voltage (Dominant) | 2.45 VCC | - | - | V |
| Bus Output Voltage (Recessive) | 2.3 | - | - | V |
| Differential Output Voltage (Dominant) | 1.5 | 2 | 3 | V |
| Common-Mode Range | -7 | - | 12 | V |
| Signaling Rate | - | - | 1 Mbps | - |
| Standby Current | - | 200 µA | 600 µA | - |
| Operating Temperature Range | -55 | - | 125 | °C |
Key Features
- Single 3.3-V supply voltage
- Bus-pin fault protection exceeding ±36 V and ESD protection exceeding ±16 kV HBM
- Compatible with ISO 11898-2 standard
- Data rates up to 1 Mbps
- Extended –7 V to 12 V common-mode range
- High-input impedance allowing for up to 120 nodes
- LVTTL I/Os are 5-V tolerant
- Adjustable driver transition times for improved signal quality
- Unpowered node does not disturb the bus
- Low-current standby mode (200 µA typical)
- Thermal shutdown protection
- Power-up and down with glitch-free bus inputs and outputs
- Loopback mode for self-diagnostic node functions without disturbing the bus
Applications
- Industrial automation, control, sensors, and drive systems
- Motor and robotic control
- Building and climate control (HVAC)
- Backplane communication and control
- CAN bus standards such as CANopen, DeviceNet, NMEA 2000, SAE J1939
- Automotive and transportation systems
Q & A
- What is the primary function of the SN65HVD233MDREP?
The SN65HVD233MDREP is a CAN transceiver that interfaces between a CAN controller and a differential CAN bus, enabling communication in accordance with the ISO 11898 standard.
- What are the key protection features of the SN65HVD233MDREP?
The device features bus-pin fault protection exceeding ±36 V, ESD protection exceeding ±16 kV HBM, and thermal shutdown protection.
- What is the typical standby current of the SN65HVD233MDREP?
The typical standby current is 200 µA.
- What is the operating temperature range of the SN65HVD233MDREP?
The operating temperature range is from -55°C to 125°C.
- How does the loopback mode function in the SN65HVD233MDREP?
A logic high on the loopback (LBK) pin places the bus output and bus input in a high-impedance state, allowing for self-diagnostic node functions without disturbing the bus.
- What are the common applications of the SN65HVD233MDREP?
Common applications include industrial automation, motor and robotic control, building and climate control, backplane communication, and automotive systems.
- Can the SN65HVD233MDREP operate in harsh environments?
Yes, the device is designed for operation in especially harsh environments and features robust protection mechanisms.
- How can the driver transition times be adjusted in the SN65HVD233MDREP?
The driver transition times can be adjusted by connecting a resistor between the RS pin and ground, with the slope proportional to the pin's output current.
- Is the SN65HVD233MDREP compatible with other CAN bus standards?
Yes, it is compatible with standards such as CANopen, DeviceNet, NMEA 2000, and SAE J1939.
- What is the maximum data rate supported by the SN65HVD233MDREP?
The device supports data rates up to 1 Mbps.
- Does the SN65HVD233MDREP support multiple modes of operation?
Yes, it supports high-speed mode, slope control mode, and low-power standby mode, selected via the RS pin.
