MAX3075EEPA+

Overview

The MAX3075EEPA+ is a half-duplex RS-485 transceiver operating from a single +3.3V supply. It features one driver and one receiver with fail-safe circuitry that guarantees a logic-high output when inputs are open or shorted. The device supports data rates up to 500kbps with slew-rate-limited drivers to minimize EMI. It includes hot-swap capability on the DE and RE pins to prevent false transitions during power-up. The unit provides ±15kV ESD protection on I/O pins, draws 800μA of supply current, and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Slew-rate-limited drivers facilitate error-free transmission at speeds up to 500kbps while reducing reflections.
• Hot-swap input structure prevents erroneous data transfer during board insertion into powered backplanes.
• Fail-safe receiver design ensures a logic-high output state under open or shorted bus conditions.

Applications

• Industrial Control Systems
• Telecommunications Equipment
• Security Systems

Procurement Notes

Verify the specific suffix EEPA against official documentation to confirm the package type and temperature grade. Confirm RoHS compliance status through manufacturer datasheets. Ensure the ordering code matches the required half-duplex configuration. Cross-reference the component marking with the manufacturer's identification guide to avoid counterfeit parts.

Selection Notes

Select this component for applications requiring reliable half-duplex communication over twisted-pair lines. The 500kbps rate suits moderate-speed industrial networks where signal integrity is critical. Verify that the system voltage aligns with the specified 3.3V requirement. Consider the thermal shutdown protection for environments with potential bus contention.

Part Context

This part belongs to the MAX3070E–MAX3079E family of high-speed RS-485/RS-422 transceivers manufactured by Analog Devices (Maxim Integrated). The family shares common features like fail-safe operation and ESD protection but varies in duplex mode and maximum data rates based on the specific model number.

Replacement Considerations

The MAX3075E serves as the base functional equivalent. Other family members like the MAX3072E offer similar electrical characteristics but may differ in pinout or specific interface compatibility.