Overview
The SN65HVD485EDGK is a half-duplex RS-485 transceiver designed by Texas Instruments for use in RS-485 data bus networks. This device is powered by a 5-V supply and is fully compliant with the TIA/EIA-485A standard. It is suitable for data transmission up to 10 Mbps over long twisted-pair cables and operates with very low supply current, typically less than 2 mA, exclusive of the load. The device features a thermal-shutdown function and power-on reset circuits to ensure stable operation. It is available in various packages, including the VSSOP-8 package, which is compact and suitable for space-constrained applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 4.5 to 5.5 | V |
| Operating Temperature | -40 to 85 | °C |
| Data Rate | Up to 10 | Mbps |
| Number of Drivers/Receivers | 1/1 | - |
| Duplex Mode | Half-Duplex | - |
| Receiver Hysteresis | 30 mV | - |
| Bus-Pin ESD Protection | Up to 15 kV | - |
| Package Type | VSSOP-8 | - |
| Mounting Type | Surface Mount | - |
Key Features
- Bus-pin ESD protection up to 15 kV
- Supports up to 64 nodes on a bus (1/2 unit load)
- Bus-open-failsafe receiver and glitch-free power-up and power-down bus inputs and outputs
- Available in small VSSOP-8 package
- Meets or exceeds the requirements of the TIA/EIA-485A standard
- Industry-standard SN75176 footprint
- Internal biasing of the receiver input thresholds for open-circuit, bus-idle, or short-circuit failsafe conditions
- Thermal-shutdown function to protect the device from damage due to system-fault conditions
Applications
- Motor control
- Power inverters
- Industrial automation
- Building automation networks
- Industrial process control
- Battery-powered applications
- Telecommunications equipment
- Electrical inverters and cabled chassis interconnects
Q & A
- What is the SN65HVD485EDGK used for?
The SN65HVD485EDGK is used as a half-duplex transceiver for RS-485 data bus networks.
- What is the maximum data rate supported by the SN65HVD485EDGK?
The SN65HVD485EDGK supports data rates up to 10 Mbps.
- What is the operating temperature range of the SN65HVD485EDGK?
The operating temperature range is from -40°C to 85°C.
- What type of ESD protection does the SN65HVD485EDGK offer?
The device offers bus-pin ESD protection up to 15 kV.
- How many nodes can the SN65HVD485EDGK support on a bus?
The device can support up to 64 nodes on a bus.
- What is the supply voltage range for the SN65HVD485EDGK?
The supply voltage range is from 4.5 V to 5.5 V.
- What package types are available for the SN65HVD485EDGK?
The device is available in VSSOP-8, SOIC-8, and PDIP-8 packages.
- Does the SN65HVD485EDGK have thermal protection?
Yes, the device features a thermal-shutdown function to protect it from damage due to system-fault conditions.
- Is the SN65HVD485EDGK RoHS compliant?
Yes, the SN65HVD485EDGK is RoHS compliant.
- What are some common applications of the SN65HVD485EDGK?
Common applications include motor control, power inverters, industrial automation, building automation networks, and telecommunications equipment.
