MAX5953AUTM+

Overview

The MAX5953AUTM+ is a Power over Ethernet (PoE) controller designed for IEEE 802.3af compliant Powered Device (PD) applications. It integrates a PD interface and PWM controllers to manage power delivery efficiently. The component operates within a standard voltage range and is housed in a 48-pin TQFN package with an exposed pad, measuring 7x7 mm. It supports single-channel operation for PoE applications, facilitating robust power management in networked devices.

Feature Summary

• Integrates PD interface and PWM controllers for IEEE 802.3af compliance
• Supports single-channel Power over Ethernet operation
• Designed for efficient power management in networked equipment

Applications

• IEEE 802.3af Powered Devices
• Network infrastructure equipment
• VoIP phones and access points

Procurement Notes

Verify the exact datasheet specifications from Analog Devices or Maxim Integrated before procurement, as component revisions may exist. Confirm the 48-TQFN package availability and ensure compatibility with your PCB layout requirements. Check for RoHS compliance status and lead-free manufacturing details directly from the manufacturer's official documentation to meet regulatory standards.

Selection Notes

Select this component for designs requiring integrated PoE control without external complex circuitry. Ensure the application strictly adheres to IEEE 802.3af standards. Verify thermal performance given the TQFN package constraints. Compare against newer PoE standards if higher power budgets are required, as this part is specific to 802.3af.

Part Context

This part belongs to the Maxim Integrated power management portfolio, specifically targeting PoE solutions. It simplifies the design of powered devices by combining interface logic and PWM control into a single IC. The series is widely used in telecommunications and networking hardware where reliable power delivery over Ethernet cables is essential.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided data. Consult Analog Devices technical support for direct replacements or pin-compatible alternatives that meet IEEE 802.3af requirements.