Overview
The SN65HVD3082EDR is a half-duplex RS-485 transceiver produced by Texas Instruments. This device is designed to operate in RS-485 data bus networks and is fully compliant with the TIA/EIA-485A standard. It is powered by a 5-V supply and is optimized for signaling rates up to 200 kbps. The SN65HVD3082EDR is known for its low quiescent power consumption, making it ideal for power-sensitive applications. It features controlled transition times, which are suitable for transmitting data over long twisted-pair cables.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | 4.5 - 5.5 | V |
| Operating Temperature Range | -40 to 85 | °C |
| Signaling Rate | Up to 200 kbps | |
| Active Mode Supply Current | Typically 0.3 mA | |
| Shutdown Mode Supply Current | A few nanoamps | |
| Package Type | SOIC-8 | |
| ESD Protection | Up to 15 kV | |
| Number of Receivers Supported | Up to 256 nodes on a bus |
Key Features
- Meets or exceeds the requirements of the TIA/EIA-485A standard
- Low quiescent power consumption (typically 0.3 mA in active mode and a few nanoamps in shutdown mode)
- Industry-standard SN75176 footprint
- Fail-safe receiver (bus open, bus shorted, bus idle)
- Glitch-free power-up and power-down bus inputs and outputs
- High ESD protection levels up to 15 kV
- Wide common-mode range
- Thermal-shutdown function to protect the device from damage due to system fault conditions
- Power-on-reset circuits to keep the outputs in a high-impedance state until the supply voltage has stabilized
Applications
The SN65HVD3082EDR is suitable for various demanding applications, including:
- Energy meter networks
- Electrical inverters
- Status and command signals across telecom racks
- Cabled chassis interconnects
- Industrial automation networks where noise tolerance is essential
Q & A
- What is the signaling rate of the SN65HVD3082EDR?
The SN65HVD3082EDR is optimized for signaling rates up to 200 kbps.
- What is the operating temperature range of the SN65HVD3082EDR?
The operating temperature range is from -40°C to 85°C, with some packages characterized for operation up to 105°C.
- What is the typical supply current in active mode?
The typical supply current in active mode is 0.3 mA, exclusive of the load.
- What is the supply current in shutdown mode?
The supply current in shutdown mode drops to a few nanoamps.
- What is the ESD protection level of the SN65HVD3082EDR?
The ESD protection level is up to 15 kV.
- How many receivers can the SN65HVD3082EDR support on a bus?
The device can support up to 256 receivers on a bus.
- What standard does the SN65HVD3082EDR comply with?
The device meets or exceeds the requirements of the TIA/EIA-485A standard.
- What are some of the key applications of the SN65HVD3082EDR?
Key applications include energy meter networks, electrical inverters, telecom racks, cabled chassis interconnects, and industrial automation networks.
- What is the package type of the SN65HVD3082EDR?
The package type is SOIC-8.
- Does the SN65HVD3082EDR have thermal-shutdown protection?
Yes, the device has a thermal-shutdown function to protect it from damage due to system fault conditions.
