Professional IC Distribution & Technical Solutions

The MAX5984AETI+T is a Power over Ethernet (PoE) PD (Powered Device) interface controller manufactured by Maxim Integrated (now part of Analog Devices).

Specifications:

• Manufacturer: Maxim Integrated (Analog Devices)
• Part Number: MAX5984AETI+T
• Package: 28-TQFN (5x5mm)
• Operating Voltage Range: 2.7V to 57V
• IEEE 802.3af/at Compliant: Yes
• Integrated Power MOSFET: Yes
• Classification: Supports 5-class (802.3af/at)
• Programmable UVLO (Under-Voltage Lockout): Yes
• Operating Temperature Range: -40°C to +85°C
• Power Dissipation: Up to 25.5W (802.3at)
• Detection Signature: 25kΩ
• Features Inrush Current Limiting: Yes
• Status Indicators: Power Good, Detection, Classification

Descriptions:

The MAX5984AETI+T is a complete PoE PD interface controller designed for IEEE 802.3af/at compliant applications. It integrates a detection signature resistor, classification current source, and an inrush current controller. It provides a stable DC output voltage for downstream DC-DC converters.

Features:

• Full IEEE 802.3af/at compliance
• Integrated 25kΩ detection signature
• Programmable classification current
• Supports both 2-event and 4-event classification
• Thermal shutdown protection
• Wide input voltage range (2.7V to 57V)
• Low-power dissipation
• Small 28-TQFN package

This device is commonly used in PoE-powered devices such as IP cameras, VoIP phones, and wireless access points.