MAX5965AEAX+

Overview

The MAX5965AEAX+ is a high-power, quad, monolithic Power Sourcing Equipment (PSE) controller designed for IEEE 802.3at (PoE+) and 802.3af (PoE) standards. It operates within a supply voltage range of 32V to 60V and supports four independent channels. The device features an operating supply voltage of 2.4V to 3.6V with a maximum quiescent current of 200µA. It functions in surface-mount SSOP-36 packages and supports industrial temperatures from -40°C to +85°C.

Feature Summary

• Monolithic integration of four PSE channels for compact PoE midspan or endpoint designs
• Supports both IEEE 802.3af and 802.3at power delivery standards
• Integrated hot-swap voltage control for safe insertion and removal
• Power failure detection capabilities for system monitoring

Applications

• IEEE 802.3af compliant PoE midspan power injectors
• IEEE 802.3at compliant PoE+ midspan power injectors
• Four-channel PoE endpoint insertion modules
• Network infrastructure power distribution units

Procurement Notes

Verify the specific suffix (+T vs standard) as packaging differs between reel and tube formats. Confirm RoHS compliance status through official documentation. Check current availability as stock may be limited. Ensure the SSOP-36 package footprint matches your PCB layout requirements before finalizing procurement.

Selection Notes

Select this component when designing systems requiring four isolated PoE channels in a single IC solution. It is suitable for applications needing support for both legacy 802.3af and higher-power 802.3at devices. Consider the thermal dissipation characteristics given the 1.389W power rating. Verify that the external component count aligns with your design complexity constraints compared to integrated switch solutions.

Part Context

This part belongs to the MAX5965A series of PoE controllers manufactured by Analog Devices/Maxim Integrated. It serves as a specialized PMIC for network equipment, distinct from general-purpose hot-swap controllers like the ADM1273. The family focuses on standardized Ethernet power delivery rather than generic backplane insertion.

Replacement Considerations

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