MAX5982AATE+

Overview

The MAX5982AATE+ is a Power Over Ethernet (PoE) controller compliant with IEEE 802.3af and 802.3at standards, designed for Powered Device (PD) applications. It operates within an input voltage range of 44V to 57V and supports up to 15.4W (Class 3) or 25.5W (Class 4) power delivery. The device integrates a high-voltage switch, current limit circuitry, and thermal protection. It utilizes a 16-pin TQFN package with an exposed pad for enhanced thermal dissipation, operating reliably across a temperature range of -40°C to +125°C.

Feature Summary

• IEEE 802.3af/at-compliant architecture for standardized PoE power reception
• Integrated high-voltage switch with programmable current limiting
• Built-in thermal shutdown and overvoltage protection mechanisms
• Supports Class 3 and Class 4 PD classification detection

Applications

• IP cameras and video surveillance systems
• Wireless access points and network switches
• VoIP telephones and communication endpoints
• Industrial IoT sensors and controllers

Procurement Notes

Verify the specific suffix 'ATE+' against the official Analog Devices datasheet to confirm pinout compatibility and RoHS status. Ensure the procurement channel provides valid traceability documentation. Confirm that the 16-TQFN package matches your PCB footprint design requirements before finalizing orders.

Selection Notes

Select this component when designing IEEE 802.3af/at Powered Devices requiring integrated switching and protection. It is suitable for applications needing Class 3 or Class 4 power levels. Consider the thermal performance of the TQFN-EP package in high-power density designs. Verify input voltage ranges match the PoE source capabilities.

Part Context

The MAX5982A belongs to the Maxim Integrated PoE controller family, specifically targeting Powered Device implementations. It simplifies design by integrating functions typically found in discrete solutions. The ATE+ variant denotes a lead-free, RoHS-compliant version in a tube package, distinct from tape-and-reel options like the MAX5982AATE+T.

Replacement Considerations

Publicly confirmed substitutes include the MAX5982CETE+T for higher power classes. Verify pin-to-pin compatibility and electrical specifications against the original datasheet before substitution. Cross-reference with other IEEE 802.3af/at PD controllers if specific feature sets differ.