Overview
The SN65HVD485EDGKG4, produced by Texas Instruments, is a half-duplex transceiver designed for 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 wide common-mode range, high ESD protection levels, and a thermal-shutdown function to protect against system-fault conditions. It is characterized for operation from –40°C to 85°C air temperature and matches the industry-standard footprint of the SN75176 device.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 5 | V |
| Signaling Rate | 0 - 10 | Mbps |
| Operating Temperature | –40 to 85 | °C |
| Junction Temperature | –40 to 130 | °C |
| Bus-Pin ESD Protection | Up to 15 kV | |
| Unit Load | 1/2 Unit Load | |
| Number of Nodes on a Bus | Up to 64 | |
| Supply Current (Active) | < 2 mA | |
| Supply Current (Shutdown) | < 1 mA | |
| Differential Load Resistance | 54 - 60 Ω |
Key Features
- Bus-pin ESD protection up to 15 kV
- 1/2 Unit load: up to 64 nodes on a bus
- Bus-open-failsafe receiver
- 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 against system-fault conditions
Applications
- Motor control
- Power inverters
- Industrial automation
- Building automation networks
- Industrial process control
- Battery-powered applications
- Telecommunications equipment
- Electrical inverters
- Status/command signals across telecom racks
- Cabled chassis interconnects
Q & A
- What is the SN65HVD485EDGKG4 used for? The SN65HVD485EDGKG4 is a half-duplex transceiver designed for RS-485 data bus networks.
- What is the supply voltage of the SN65HVD485EDGKG4? The supply voltage is 5 V.
- What is the maximum signaling rate of the SN65HVD485EDGKG4? The maximum signaling rate is 10 Mbps.
- What is the operating temperature range of the SN65HVD485EDGKG4? The operating temperature range is from –40°C to 85°C.
- How many nodes can be connected on a bus using the SN65HVD485EDGKG4? Up to 64 nodes can be connected on a bus.
- What level of ESD protection does the SN65HVD485EDGKG4 offer? The SN65HVD485EDGKG4 offers bus-pin ESD protection up to 15 kV.
- What is the typical supply current in active mode? The typical supply current in active mode is less than 2 mA.
- What is the typical supply current in shutdown mode? The typical supply current in shutdown mode is less than 1 mA.
- Does the SN65HVD485EDGKG4 have thermal protection? Yes, it has a thermal-shutdown function to protect against system-fault conditions.
- What are some common applications of the SN65HVD485EDGKG4? Common applications include motor control, power inverters, industrial automation, and telecommunications equipment.
