Overview
The SN65HVD3082EPG4 is a low-power RS-485 transceiver designed by Texas Instruments. This half-duplex transceiver is fully compliant with the TIA/EIA-485A standard and is optimized for use in RS-485 data bus networks. It operates on a 5-V supply and is characterized by its low quiescent power consumption, making it suitable for power-sensitive applications. The device supports signaling rates up to 200 kbps and can connect up to 256 nodes on a bus, thanks to its 1/8 unit load capability.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage, VCC | 4.5 | 5.5 | 5.5 | V |
| Operating Free-Air Temperature, TA | -40 | 85 (105°C for D package) | °C | |
| Signaling Rate | 200 kbps | |||
| Quiescent Current, Active Mode | 0.3 | mA | ||
| Quiescent Current, Shutdown Mode | 1 | nA | ||
| ESD Protection, Bus Pins | ±15 kV | |||
| Differential Input Voltage, VID | -12 | 12 | V | |
| Output Current, IO (Driver) | -60 | 60 | mA | |
| Output Current, IO (Receiver) | -8 | 8 | mA |
Key Features
- Meets or exceeds the requirements of the TIA/EIA-485A standard.
- Low quiescent power consumption: 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 for bus open, shorted, or idle conditions.
- Glitch-free power-up and power-down bus inputs and outputs.
- Thermal shutdown protection.
- Power-on-reset circuits to keep outputs in a high-impedance state until the supply voltage stabilizes.
Applications
- Energy meter networks.
- Motor control systems.
- Power inverters.
- Industrial automation networks.
- Building automation networks.
- Battery-powered applications.
- Telecommunications equipment.
Q & A
- What is the operating voltage range of the SN65HVD3082EPG4?
The operating voltage range is from 4.5 V to 5.5 V.
- What is the maximum signaling rate supported by the SN65HVD3082EPG4?
The maximum signaling rate supported is up to 200 kbps.
- How many nodes can be connected to the bus using the SN65HVD3082EPG4?
Up to 256 nodes can be connected due to its 1/8 unit load capability.
- What is the quiescent current in active and shutdown modes?
In active mode, it is 0.3 mA, and in shutdown mode, it is 1 nA.
- What level of ESD protection does the SN65HVD3082EPG4 offer?
The device offers ESD protection up to ±15 kV on bus pins.
- What are the typical applications of the SN65HVD3082EPG4?
Typical applications include energy meter networks, motor control, power inverters, industrial automation, and telecommunications equipment.
- Does the SN65HVD3082EPG4 have thermal shutdown protection?
- What is the operating temperature range for the SN65HVD3082EPG4?
The operating temperature range is from -40°C to 85°C (and up to 105°C for the D package).
- Is the SN65HVD3082EPG4 compliant with industry standards?
- What kind of receiver does the SN65HVD3082EPG4 have?
The device has a fail-safe receiver that handles bus open, shorted, or idle conditions.
