LTM2885HY#PBF

Overview

The LTM2885HY#PBF is a high-performance, isolated DC/DC module featuring an integrated isolated power supply and RS-485/RS-422 transceiver. It operates from a single 3.0V to 5.5V input voltage source and provides galvanic isolation of up to 5kVrms. The device delivers a regulated output current of up to 1A at selectable voltages, supporting both half-duplex and full-duplex communication modes. It incorporates advanced protection features including thermal shutdown and short-circuit protection for the output stage.

Feature Summary

• Integrated isolated power supply with RS-485/RS-422 transceiver in a compact package
• Galvanic isolation capability up to 5kVrms for robust noise immunity
• Single-supply operation simplifying system design and reducing component count
• Built-in thermal and short-circuit protection ensuring reliable operation under fault conditions

Applications

• Industrial automation and control systems requiring isolated communication
• Medical equipment needing galvanic isolation for patient safety
• Test and measurement instruments demanding high-reliability data links
• Power monitoring systems with isolated sensor interfaces

Procurement Notes

Verify the specific suffix 'HY' indicates the correct temperature range and package variant. Confirm that the '#PBF' designation ensures lead-free compliance and RoHS adherence. Check for any specific ordering prefixes required by distributors. Ensure the procurement channel is authorized to guarantee authenticity and traceability of the component.

Selection Notes

Select this component when a combined isolated power supply and RS-485/RS-422 interface is required in a space-constrained environment. It is suitable for applications needing high isolation voltage and single-supply operation. Consider the 1A output current capability against load requirements. Evaluate the need for half-duplex versus full-duplex functionality before finalizing the choice.

Part Context

The LTM2885 belongs to Analog Devices' LTM28xx family of isolated DC/DC modules with integrated transceivers. This series is designed to simplify the design of isolated communication interfaces by combining power conversion and signal transmission in a single BGA package. The LTM2885 specifically targets RS-485 and RS-422 standards, offering a compact solution for industrial and medical applications.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in standard documentation without specific cross-reference data. Verify compatibility with existing board layout and isolation requirements if considering alternatives. Consult manufacturer resources for updated replacement lists or newer generation equivalents within the same product family.