Overview
The SN65HVD61DR, produced by Texas Instruments, is a ControlNet transceiver designed to meet the requirements for the driver and receiver circuitry of the ControlNet coaxial-based physical layer. This device is a single-channel transceiver suitable for single node operation or distributed stand-alone applications. It features a pull-or-pull transmitter circuit that provides galvanic isolation from the shared bus through a center-tapped transformer. The SN65HVD61DR also includes a differential receiver with a sensitivity of 120 mV, which is necessary for ControlNet industrial applications.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| VCC Supply Voltage | 4.5 | 5 | 5.5 | V |
| VDD Input/Output Supply Voltage | 2.375 | 5.5 | V | |
| Logic Input Voltage Range (TX, TXBAR, TXEN, CHEN) | -0.5 | 6 | V | |
| Bus Pin Common-Mode Voltage (VXF1 + VXF3) / 2 | 4.5 | 5.5 | V | |
| Voltage at Any Bus Terminal (XF1, XF3) | -10 | 15 | V | |
| Transmitter Peak Output Current (XF1, XF3) | 130 | 150 | mA | |
| Operating Free-Air Temperature | -40 | 100 | °C | |
| Junction Temperature | 150 | °C | ||
| Signaling Rate | 10 | Mbps |
Key Features
- Compatible with the ControlNet standard
- I/O operates from 2.5-V to 5-V supply
- Receiver thresholds within –120mV to 120mV and receiver hysteresis >50mV
- Low power standby mode
- Thermal shutdown protection
- Programmable power-up/down glitch-free bus inputs and outputs
- Short-circuit protection on outputs
- RoHS compliant
- A secondary receiver (CD) detects the presence of a valid positive differential signal
- A signal strength pin (SIG) provides a scaled analog output proportional to the differential voltage between XF1 and XF3 for diagnostic purposes
Applications
- Industrial networks
- Programmable controllers
- Industrial drives
- Distributed control systems
- ControlNet-based systems requiring robust and reliable communication
Q & A
- What is the primary function of the SN65HVD61DR?
The SN65HVD61DR is a transceiver designed to meet the requirements for the driver and receiver circuitry of the ControlNet coaxial-based physical layer.
- What is the operating voltage range for the SN65HVD61DR?
The device operates from a supply voltage range of 2.5-V to 5-V.
- What is the significance of the signal strength pin (SIG) in the SN65HVD61DR?
The signal strength pin (SIG) provides a scaled analog output proportional to the differential voltage between XF1 and XF3, which can be used for diagnostic purposes.
- Does the SN65HVD61DR have thermal shutdown protection?
- What are the typical applications of the SN65HVD61DR?
The device is used in industrial networks, programmable controllers, industrial drives, and other ControlNet-based systems.
- Is the SN65HVD61DR RoHS compliant?
- What is the signaling rate of the SN65HVD61DR?
The signaling rate of the SN65HVD61DR is 10 Mbps.
- How does the SN65HVD61DR protect against short-circuits?
The device features short-circuit protection on its outputs to prevent damage during short-circuit conditions.
- What is the purpose of the secondary receiver (CD) in the SN65HVD61DR?
The secondary receiver (CD) detects the presence of a valid positive differential signal.
- What are the recommended operating temperatures for the SN65HVD61DR?
The device operates within a temperature range of -40°C to 100°C.
