Overview
The SN75HVD3082E is a low-power half-duplex RS-485 transceiver designed by Texas Instruments. This device is fully compliant with the TIA/EIA-485A standard and is optimized for signaling rates up to 200 kbps. It operates on a 5-V supply and is characterized for operation from 0°C to 70°C. The SN75HVD3082E is suitable for transmitting data over long twisted-pair cables, making it ideal for various industrial and communication applications where low power consumption and high noise tolerance are essential.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC (D) | - |
| Pins | 8 | - |
| Operating Temperature Range | 0 to 70 | °C |
| Supply Voltage (VCC) | 4.5 to 5.5 | V |
| Active Mode Supply Current | 0.3 mA | mA |
| Shutdown Mode Supply Current | 1 nA | nA |
| Signaling Rate | Up to 200 kbps | kbps |
| Bus-pin ESD Protection | Up to 15 kV | kV |
| Differential Load Resistance | 54 to 60 Ω | Ω |
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 for device protection
- Power-on-reset circuits to keep outputs in a high-impedance state until supply voltage stabilizes
Applications
- Energy meter networks
- Motor control
- Power inverters
- Industrial automation
- Building automation networks
- Battery-powered applications
- Telecommunications equipment
- Cabled chassis interconnects
Q & A
- What is the operating temperature range of the SN75HVD3082E?
The SN75HVD3082E operates from 0°C to 70°C.
- What is the signaling rate of the SN75HVD3082E?
The SN75HVD3082E is optimized for signaling rates up to 200 kbps.
- How many nodes can be connected to the bus using the SN75HVD3082E?
The SN75HVD3082E can connect up to 256 nodes on a bus as it is a 1/8 unit load device.
- What is the supply current in active and shutdown modes?
In active mode, the supply current is typically 0.3 mA, and in shutdown mode, it drops to 1 nA.
- Does the SN75HVD3082E have ESD protection?
- What is the industry-standard footprint of the SN75HVD3082E?
The SN75HVD3082E matches the industry-standard footprint of the SN75176 device.
- How does the SN75HVD3082E handle power-up and power-down?
The SN75HVD3082E has glitch-free power-up and power-down bus inputs and outputs, and power-on-reset circuits keep the outputs in a high-impedance state until the supply voltage has stabilized.
- What kind of thermal protection does the SN75HVD3082E have?
The SN75HVD3082E has a thermal-shutdown function to protect the device from damage due to system fault conditions.
- What are some common applications of the SN75HVD3082E?
The SN75HVD3082E is commonly used in energy meter networks, motor control, power inverters, industrial automation, and telecommunications equipment.
- What is the package type and pin count of the SN75HVD3082E?
The SN75HVD3082E is available in an SOIC (D) package with 8 pins.
