MAX5941BCSE+T

Overview

The MAX5941BCSE+T is a single-channel IEEE 802.3af-compliant Power-over-Ethernet (PoE) interface and PWM controller designed for Powered Devices (PDs). It operates within a supply voltage range of 18V to 67V, with a typical supply current of 400µA. The device supports a maximum power output of 12.95W and functions without an internal switch. It is housed in a 16-SOIC package and is rated for operation between 0°C and +70°C.

Feature Summary

• Complies with IEEE 802.3af PoE standards for powered device classification and power delivery
• Integrates interface logic and PWM control for external power stage management
• Supports wide input voltage ranges suitable for standard and extended PoE applications

Applications

• IEEE 802.3af Powered Device implementations
• Network infrastructure equipment requiring PoE power intake
• Telecommunications hot-swap reference designs

Procurement Notes

This component is officially listed as End-of-Life (EOL) by the manufacturer. Availability is restricted, and sourcing may require checking secondary distributors or obsolete inventory channels. Verify specific lot dates and authenticity through authorized channels before procurement.

Selection Notes

Select this part for legacy IEEE 802.3af PD designs requiring a dedicated interface and PWM controller. Note that it lacks an integrated power switch, necessitating external MOSFET selection. Consider newer generations if active procurement is required.

Part Context

The MAX5941 series belongs to Analog Devices' Maxim Integrated portfolio of PoE controllers. This specific variant provides the control logic for classifying and powering devices over Ethernet cables, serving as a core component in network endpoint hardware.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation due to the EOL status.