Overview
The SN65HVD3082EDRG4 is a half-duplex RS-485 transceiver produced by Texas Instruments. This device is designed for use in RS-485 data bus networks and is fully compliant with the TIA/EIA-485A standard. It operates on a 5-V supply and is optimized for transmitting data over long twisted-pair cables. The SN65HVD3082E series, including the SN65HVD3082EDRG4, is characterized by its low quiescent power consumption and high ESD protection, making it suitable for a variety of demanding applications.
Key Specifications
| Parameter | Min | Nom | Max | Unit |
|---|---|---|---|---|
| Supply voltage, VCC | 4.5 | 5.5 | 5.5 | V |
| High-level input voltage (D, DE, or RE inputs), VIH | 0 | - | 2 * VCC | V |
| Low-level input voltage (D, DE, or RE inputs), VIL | 0 | - | 0.8 | V |
| Differential input voltage, VID | -12 | - | 12 | V |
| Output current, IO (Driver) | -60 | - | 60 | mA |
| Signaling rate | - | - | 0.2 Mbps | - |
| Operating free-air temperature, TA | -40 | - | 85 | °C |
| Junction temperature, TJ | -40 | - | 130 | °C |
Key Features
- Meets or exceeds the requirements of the TIA/EIA-485A standard
- Low quiescent power: 0.3 mA in active mode and 1 nA in shutdown mode
- 1/8 unit load, allowing up to 256 nodes on a bus
- Bus-pin ESD protection up to 15 kV
- Industry-standard SN75176 footprint
- Fail-safe receiver (bus open, bus shorted, bus idle)
- Glitch-free power-up and power-down bus inputs and outputs
- Thermal-shutdown function to protect the device from system fault conditions
Applications
The SN65HVD3082EDRG4 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 operating voltage range of the SN65HVD3082EDRG4?
The operating voltage range is from 4.5 V to 5.5 V.
- What is the maximum signaling rate of the SN65HVD3082EDRG4?
The maximum signaling rate is up to 0.2 Mbps.
- How many nodes can be connected to the bus using the SN65HVD3082EDRG4?
Up to 256 nodes can be connected due to its 1/8 unit load capability.
- What is the ESD protection level of the SN65HVD3082EDRG4?
The device has bus-pin ESD protection up to 15 kV.
- What is the typical quiescent current in active mode?
The typical quiescent current in active mode is 0.3 mA.
- What is the shutdown current of the SN65HVD3082EDRG4?
The shutdown current is approximately 1 nA.
- Is the SN65HVD3082EDRG4 compliant with any industry standards?
Yes, it is fully compliant with the TIA/EIA-485A standard.
- What are the operating temperature ranges for the SN65HVD3082EDRG4?
The operating temperature range is from -40°C to 85°C, and the D package version can operate from -40°C to 105°C.
- Does the SN65HVD3082EDRG4 have any thermal protection features?
Yes, it has a thermal-shutdown function to protect the device from system fault conditions.
- What is the significance of the 'G4' in the part number SN65HVD3082EDRG4?
The 'G4' designation indicates that the device is manufactured using environmentally friendly (green) processes and does not denote any performance differences.
