MAX5982AETE+T

Overview

The MAX5982AETE+T is an IEEE 802.3af/at-compliant Hot Swap voltage controller designed for Powered Device (PD) applications. It manages power delivery over Ethernet cabling, supporting both 802.3af and 802.3at standards. The device operates within a wide input voltage range to accommodate varying line conditions. It features integrated protection mechanisms including overvoltage, undervoltage, and thermal shutdown. The component is housed in a compact 16-lead TQFN package with an exposed pad, suitable for space-constrained designs.

Feature Summary

• Complies with IEEE 802.3af and 802.3at Power over Ethernet standards
• Integrated Hot Swap controller for safe power insertion and removal
• Supports Powered Device (PD) classification and detection
• Includes comprehensive protection against overvoltage and thermal faults

Applications

• Powered Device implementations in network infrastructure
• VoIP phones and wireless access points requiring PoE power
• Industrial control systems utilizing Ethernet power supply
• Security cameras and surveillance equipment powered via LAN

Procurement Notes

Verify the specific suffix 'A' and '+T' during procurement, as these denote the temperature grade and tape-and-reel packaging respectively. Confirm RoHS compliance status through official manufacturer documentation. Check current availability as distribution status may vary by region. Ensure the ordering part number matches the exact functional variant required for your design.

Selection Notes

Select this component when designing a Powered Device that requires strict adherence to IEEE 802.3af or 802.3at protocols. It is appropriate for applications needing integrated Hot Swap functionality to prevent bus disturbances. Consider the 16-TQFN package size for board space constraints. Verify that the input voltage range and current capabilities align with the target PD power budget requirements.

Part Context

This part belongs to the Maxim Integrated PoE controller family, specifically tailored for Powered Devices. It integrates the necessary logic and analog circuits to handle link pulses, classification, and power management. The device simplifies design by combining detection, classification, and Hot Swap control into a single IC, reducing external component count compared to discrete solutions.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.