Overview
The SN75174DWRE4 is a monolithic quadruple differential line driver produced by Texas Instruments. It is designed to meet the requirements of ANSI Standards EIA/TIA-422-B and RS-485, as well as ITU Recommendation V.11. This device is optimized for balanced multipoint bus transmission at rates up to 4 megabaud and is particularly suited for party-line applications in noisy environments. The SN75174DWRE4 features 3-state outputs, wide common-mode output voltage ranges, and various protection mechanisms such as thermal shutdown and current limiting.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 4.75 | 5 | 5.25 | V |
| Operating Temperature Range (TA) | 0 | 70 | °C | |
| Common-Mode Output Voltage Range (VOC) | -7 | 12 | V | |
| High-Level Output Current (IOH) | -60 | mA | ||
| Low-Level Output Current (IOL) | 60 | mA | ||
| Package Type | 20-SOIC | |||
| Lead Free Status / RoHS Status | Lead Free / RoHS Compliant |
Key Features
- Meets or exceeds the requirements of ANSI standards EIA/TIA-422-B and RS-485 and ITU recommendation V.11.
- Designed for multipoint transmission on long bus lines in noisy environments.
- 3-state outputs.
- Common-mode output voltage range of –7V to 12V.
- Active-high enable.
- Thermal shutdown protection.
- Positive- and negative-current limiting.
- Operates from a single 5V supply.
- Low power requirements.
- Functionally interchangeable with MC3487.
Applications
- Chemical and gas sensors.
- Field transmitters: temperature sensors and pressure sensors.
- Motor drives: brushless DC and brushed DC.
- Temperature sensors and controllers using Modbus.
Q & A
- What are the primary standards that the SN75174DWRE4 complies with?
The SN75174DWRE4 meets or exceeds the requirements of ANSI standards EIA/TIA-422-B and RS-485, as well as ITU Recommendation V.11.
- What is the operating temperature range of the SN75174DWRE4?
The device operates from 0°C to 70°C.
- What is the common-mode output voltage range of the SN75174DWRE4?
The common-mode output voltage range is –7V to 12V.
- Does the SN75174DWRE4 have any protection mechanisms?
Yes, it features thermal shutdown protection and positive- and negative-current limiting.
- What is the supply voltage for the SN75174DWRE4?
The device operates from a single 5V supply, with a range of 4.75V to 5.25V.
- Is the SN75174DWRE4 RoHS compliant?
Yes, the SN75174DWRE4 is lead-free and RoHS compliant.
- What package type is the SN75174DWRE4 available in?
The device is available in a 20-SOIC package.
- Can the SN75174DWRE4 be used in noisy environments?
Yes, it is designed for multipoint transmission on long bus lines in noisy environments.
- What are some typical applications of the SN75174DWRE4?
Typical applications include chemical and gas sensors, field transmitters, motor drives, and temperature sensors and controllers using Modbus.
- Is the SN75174DWRE4 functionally interchangeable with other devices?
Yes, it is functionally interchangeable with the MC3487.
