MAX5986CETE+T

Overview

The MAX5986CETE+T is a Power-over-Ethernet (PoE) Powered Device controller compliant with IEEE 802.3af standards, manufactured by Analog Devices Inc./Maxim Integrated. It integrates a PD interface and an efficient step-down DC-DC converter within a 16-TQFN package. The device supports an input voltage range of 8.7V to 60V and features a maximum operating current limit of 323mA. Key electrical parameters include a maximum inrush current limit of 60mA and a quiescent supply current of 3.6mA. It operates reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a complete PoE Powered Device solution with an internal step-down DC-DC converter for low external part count.
• Provides isolation power MOSFET control with configurable detection and classification signatures via a single external resistor.
• Includes sleep and ultra-low power modes to minimize energy consumption during idle states.

Applications

• IEEE 802.3af-compliant Class 1/Class 2 Powered Devices
• Power-over-Ethernet network endpoints
• LAN powered equipment requiring integrated regulation

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to the presence of counterfeit risks in the market. Confirm that the received unit matches the MAX5986CETE+T marking and package type. Check RoHS compliance documentation if required for specific regulatory environments. Ensure storage conditions adhere to moisture sensitivity level guidelines prior to assembly.

Selection Notes

Select this component when designing systems requiring strict adherence to IEEE 802.3af standards with minimal external bill of materials. It is suitable for applications needing integrated power switching and regulation without separate controllers. Consider the thermal performance of the TQFN package and ensure adequate PCB copper area for heat dissipation under maximum load conditions.

Part Context

This part belongs to the MAX5986 family of PoE controllers, which are designed to simplify Powered Device implementation. The series offers various options for different power classes and regulatory requirements. The MAX5986CETE+T specifically targets Class 1 and Class 2 applications, providing a compact and efficient solution for modern networking hardware.

Replacement Considerations

Public confirmed substitute part numbers: MAX5986AETE+T, MAX5986BETE+T.