MAX5941BESE+T

Overview

The MAX5941BESE+T is a single-channel Power-over-Ethernet (PoE) controller designed for IEEE 802.3af compliant powered devices. It integrates a PD interface and a DC-DC PWM controller suitable for flyback and forward converters in isolated or non-isolated designs. The device operates with an input voltage range of 18V to 67V and features current-mode control with leading-edge blanking. It includes programmable classification, undervoltage lockout, and inrush current limiting within a 16-pin SOIC package.

Feature Summary

• Integrates a complete IEEE 802.3af-compliant powered device interface with detection and programmable classification signatures.
• Combines a compact DC-DC PWM controller optimized for flyback and forward converter topologies.
• Includes an internal MOSFET for isolation and inrush current limiting with gate output for external control.

Applications

• IP Phones
• Wireless Access Nodes
• Security Cameras

Procurement Notes

Verify the specific suffix 'ESE+T' against official Analog Devices documentation to confirm the tape-and-reel packaging variant and lead-free status. Ensure compatibility with the required operating temperature range and pinout configuration for your PCB layout before finalizing procurement orders.

Selection Notes

Select this component for applications requiring a highly integrated PoE solution that minimizes external component count. It is suitable for designs needing both power delivery interface logic and primary-side switching control in a single package, particularly where space constraints limit the use of separate controllers.

Part Context

This part belongs to the MAX5941 family, which provides comprehensive solutions for Power-over-Ethernet powered devices. The series supports various package options and temperature grades, allowing designers to choose between different thermal and mechanical requirements while maintaining core IEEE 802.3af compliance features.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify functional equivalence with other MAX5941 variants or competing PoE controllers through detailed datasheet comparison if direct substitution is required.