Overview
The SN75179BDRG4 is a differential driver and receiver pair produced by Texas Instruments. It is designed for balanced transmission-line applications and meets the requirements of TIA/EIA-422-B, TIA/EIA-485-A, and ITU Recommendation V.11. This component is optimized to enhance the performance of full-duplex data communications over long bus lines. It operates from a single 5-V supply and has low power requirements, making it efficient for various communication systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | 5 | V |
| Bus Voltage Range | –7 to 12 | V |
| Driver Output Capability | 60 | mA |
| Driver Thermal-Shutdown Protection | Approx. 150°C | °C |
| Receiver Input Impedance | 12 kΩ Min | Ω |
| Receiver Input Sensitivity | ±200 mV | mV |
| Receiver Input Hysteresis | 50 mV Typ | mV |
| Operating Temperature Range | 0 to 70 | °C |
| Package Types | SOIC (D), PDIP (P), SOP (PS) |
Key Features
- Meets or exceeds the requirements of TIA/EIA-422-B, TIA/EIA-485-A, and ITU Recommendation V.11.
- Bus voltage range: –7 V to 12 V.
- Positive- and negative-current limiting.
- Driver output capability: up to 60 mA maximum.
- Driver thermal-shutdown protection at approximately 150°C.
- Receiver features high input impedance (12 kΩ Min) and input hysteresis for increased noise immunity.
- Receiver input sensitivity: ±200 mV.
- Operates from a single 5-V supply with low power requirements.
Applications
The SN75179BDRG4 is suitable for various applications requiring reliable and high-performance differential signaling, including:
- Full-duplex data communications over long bus lines.
- Industrial control systems.
- Telecommunications equipment.
- Point-of-sale terminals and other data communication devices.
Q & A
- What are the main standards that the SN75179BDRG4 complies with?
The SN75179BDRG4 meets or exceeds the requirements of TIA/EIA-422-B, TIA/EIA-485-A, and ITU Recommendation V.11.
- What is the operating voltage range for the SN75179BDRG4?
The component operates from a single 5-V supply.
- What is the bus voltage range for the SN75179BDRG4?
The bus voltage range is –7 V to 12 V.
- What is the maximum driver output current of the SN75179BDRG4?
The driver output capability is up to 60 mA maximum.
- Does the SN75179BDRG4 have thermal protection?
- What is the input impedance of the receiver in the SN75179BDRG4?
The receiver input impedance is 12 kΩ minimum.
- What is the input sensitivity of the receiver in the SN75179BDRG4?
The receiver input sensitivity is ±200 mV.
- What is the operating temperature range for the SN75179BDRG4?
The component is characterized for operation from 0°C to 70°C.
- In what packages is the SN75179BDRG4 available?
The SN75179BDRG4 is available in SOIC (D), PDIP (P), and SOP (PS) packages.
- What are some typical applications of the SN75179BDRG4?
Typical applications include full-duplex data communications over long bus lines, industrial control systems, telecommunications equipment, and point-of-sale terminals.
- Does the SN75179BDRG4 have low power requirements?
