DS75176BTN

Overview

The DS75176BTN/NOPB is a multipoint RS-485/RS-422 transceiver manufactured by Texas Instruments. It operates on a single +5V supply with a voltage range of 4.75V to 5.25V. The device supports data rates up to 10 Mb/s and features a bus common mode range from -7V to +12V, allowing for ±7V ground differences. Driver propagation delays are typically 22 ns, while receiver delays are typically 37 ns. It includes thermal shutdown protection and high impedance states when powered off. The component is housed in an 8-pin PDIP package and is rated for operation between -40°C and +85°C.

Feature Summary

• Supports multipoint communication on balanced transmission lines compliant with EIA RS-485 and RS-422 standards.
• Features TRI-STATE outputs over the entire common mode range to prevent bus contention.
• Includes thermal shutdown circuitry that forces driver outputs to a high impedance state during excessive power dissipation.
• Maintains high impedance to the bus when the driver is disabled or power is removed.

Applications

• Multipoint data transmission on noisy industrial buses
• Bidirectional data communication on long bus lines
• Systems requiring extended common mode voltage ranges

Procurement Notes

Verify the specific ordering suffix against current manufacturer documentation to confirm package type and temperature rating. Confirm availability status as the component may be subject to lifecycle changes. Ensure compliance with relevant environmental directives such as RoHS requirements before finalizing procurement orders.

Selection Notes

Select this component for applications requiring robust multipoint communication with extended common mode capabilities. Verify that the operating temperature range meets system requirements. Ensure the design accommodates the specified supply voltage limits and considers the thermal management needs associated with short-circuit conditions.

Part Context

This part belongs to the DS75176B family of differential bus transceivers designed for half-duplex communication. It is pin-compatible with legacy devices like the SN75176A/B and DS3695/A, facilitating direct replacements in existing designs. The technology focuses on providing reliable data transfer in electrically noisy environments typical of industrial automation.

Replacement Considerations

SN75176BDR

FAQ

What is the maximum data rate supported by the DS75176BTN?

The device supports data rates up to 10 Mb/s.

How does the device handle bus contention?

The driver outputs feature TRI-STATE capability over the entire common mode range, which prevents bus contention.

What protection is provided against excessive power dissipation?

A thermal shutdown circuit forces the driver outputs into a high impedance state if excessive power dissipation occurs.