DS36C280TMX/NOPB

Overview

The DS36C280TMX/NOPB is a low-power CMOS RS-485 transceiver in an 8-pin SOIC package. It operates at +5V with a maximum supply current of 500 μA and supports data rates up to 10 Mb/s. The device features adjustable slew rate control via an external resistor, a wide common mode range of −7V to +12V, and thermal shutdown protection. It guarantees interoperation with standard RS-485 devices and includes receiver open input fail-safe circuitry.

Feature Summary

• Adjustable Slew Rate Control
• Low Power CMOS Design
• Built-In Thermal Shutdown

Applications

• Multipoint data transmission networks
• Battery powered or power conscious applications
• EMI conscious industrial environments

Procurement Notes

Verify the component status as obsolete before procurement planning. Confirm that the specific ordering suffix matches the required temperature grade and package variant. Ensure compatibility with existing system designs due to discontinued production status.

Selection Notes

Select this part for applications requiring adjustable edge rates to minimize electromagnetic interference. Verify that the 5V supply voltage aligns with the system architecture. Consider the reduced node capacity compared to lower unit load variants when designing bus topologies.

Part Context

This component belongs to the DS36C280 family of RS-485 transceivers manufactured by Texas Instruments. It shares core functionality with other members of the series but is distinguished by its specific slew rate control capabilities and commercial temperature rating.

Replacement Considerations

DS36C280M/NOPB

FAQ

How does the slew rate control function?

The slew rate control pin allows adjustment of driver output rise and fall times using an external resistor connected to ground.

What is the guaranteed node capacity?

The DS36C280 provides a ¼ unit load specification, guaranteeing support for up to 128 nodes on a single bus.

Does the device include fault protection?

Yes, it incorporates built-in thermal shutdown circuitry to prevent damage from excessive power dissipation and receiver open input fail-safe.