Overview
The DS75176BMX is a high-speed differential bus/line transceiver designed to meet the requirements of EIA standard RS485 with extended common mode range. This component is compatible with RS-422 and is suitable for multipoint data transmission. Originally developed by National Semiconductor Corporation, it is now also available from Texas Instruments following the acquisition. The device features a single +5V supply and is available in a Small Outline (SOIC) package, which minimizes board space.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Supply Voltage, VCC | 4.75 | 5.25 | V | |
| Voltage at Any Bus Terminal | -7 | +12 | V | |
| Operating Free Air Temperature (DS75176B) | 0 | +70 | °C | |
| Differential Input Voltage, VID | -12 | +12 | V | |
| Driver Propagation Delays | 12 | 22 | 22 | ns |
| Receiver Propagation Delays | 30 | 37 | 37 | ns |
| Continuous Power Dissipation @ 25°C (SOIC Package) | 675 | mW | ||
| Storage Temperature Range | -65 | +150 | °C | |
| Lead Temperature (Soldering, 4 seconds) | 260 | °C | ||
| ESD Rating (HBM) | 500 | V |
Key Features
- Meets EIA Standard RS485 for multipoint bus transmission and is compatible with RS-422.
- Extended common mode range (+12V to −7V) for robust operation.
- Single +5V supply.
- TRI-STATE capability for driver and receiver outputs over the entire common mode range.
- Thermal shutdown protection to prevent excessive power dissipation.
- High impedance to bus with driver in TRI-STATE or with power off, over the entire common mode range.
- Pin out compatible with DS3695/A and SN75176A/B.
- Combined impedance of a driver output and receiver input is less than one RS485 unit load, allowing up to 32 transceivers on the bus.
- 70 mV typical receiver hysteresis.
Applications
- Multipoint data transmission systems.
- Industrial control systems.
- Automotive systems.
- Telecommunications equipment.
- Any application requiring robust and reliable RS485/RS422 communication.
Q & A
- What is the primary function of the DS75176BMX?
The DS75176BMX is a high-speed differential bus/line transceiver designed for multipoint data transmission, meeting EIA standard RS485 and compatible with RS-422.
- What is the supply voltage range for the DS75176BMX?
The supply voltage range is from 4.75V to 5.25V.
- What is the operating temperature range for the DS75176B?
The operating temperature range is from 0°C to +70°C.
- What is the common mode range for the DS75176BMX?
The common mode range is from -7V to +12V.
- Does the DS75176BMX have thermal shutdown protection?
- How many transceivers can be connected on the bus?
Up to 32 transceivers can be connected on the bus due to the combined impedance of a driver output and receiver input being less than one RS485 unit load.
- What is the typical receiver hysteresis?
The typical receiver hysteresis is 70 mV.
- Is the DS75176BMX RoHS compliant?
Some versions of the DS75176BMX are lead-free and RoHS compliant, but it is important to check the specific part number and manufacturer's documentation.
- What package options are available for the DS75176BMX?
The DS75176BMX is available in a Small Outline (SOIC) package.
- What are some common applications for the DS75176BMX?
Common applications include multipoint data transmission systems, industrial control systems, automotive systems, and telecommunications equipment.
