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MAX5922AEUI+T from MAXIM,MAXIM - Dallas Semiconductor

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MAX5922AEUI+T

Manufacturer: MAXIM

+48V, Single-Port Network Power Switch For Power-Over-LAN

Partnumber Manufacturer Quantity Availability
MAX5922AEUI+T,MAX5922AEUIT MAXIM 2500 In Stock

Description and Introduction

+48V, Single-Port Network Power Switch For Power-Over-LAN The **MAX5922AEUI+T** is a power-over-Ethernet (PoE) interface controller manufactured by **MAXIM Integrated** (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** MAXIM Integrated (Analog Devices)  
- **Part Number:** MAX5922AEUI+T  
- **Package:** 28-TSSOP  
- **Operating Temperature Range:** -40°C to +85°C  
- **Input Voltage Range:** 36V to 57V (IEEE 802.3af compliant)  
- **Output Voltage:** Adjustable  
- **Detection Voltage:** 2.7V to 10V  
- **Classification Current:** Programmable per IEEE 802.3af  
- **Power Dissipation:** Up to 12.95W (Class 0-3)  

### **Descriptions:**
The MAX5922AEUI+T is a **Powered Device (PD) controller** designed for **Power-over-Ethernet (PoE)** applications. It integrates detection, classification, and undervoltage lockout (UVLO) functions compliant with the **IEEE 802.3af standard**. It provides a **low-power interface** for PDs, ensuring safe power extraction from Ethernet cables.

### **Features:**
- **IEEE 802.3af Compliant:** Supports detection, classification, and power management.  
- **Integrated Power MOSFET:** Reduces external component count.  
- **Programmable Classification:** Supports all IEEE 802.3af classes (0-4).  
- **Inrush Current Limiting:** Protects against excessive startup current.  
- **Thermal Shutdown:** Prevents overheating.  
- **Undervoltage Lockout (UVLO):** Ensures stable operation within safe voltage limits.  
- **Low Quiescent Current:** Minimizes power consumption in standby.  
- **28-TSSOP Package:** Compact and suitable for space-constrained designs.  

This IC is commonly used in **IP phones, wireless access points, security cameras, and other PoE-powered devices**.  

*(Note: Always refer to the official datasheet for detailed electrical characteristics and application guidelines.)*

Application Scenarios & Design Considerations

+48V, Single-Port Network Power Switch For Power-Over-LAN

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