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LTC4261CUFD from LT

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LTC4261CUFD

Manufacturer: LT

Negative Voltage Hot Swap Controllers with ADC and I2C Monitoring

Partnumber Manufacturer Quantity Availability
LTC4261CUFD LT 1492 In Stock

Description and Introduction

Negative Voltage Hot Swap Controllers with ADC and I2C Monitoring The LTC4261CUFD is a Power over Ethernet (PoE) interface controller manufactured by Linear Technology (now part of Analog Devices).  

### **Key Specifications:**  
- **Manufacturer:** Linear Technology (LT)  
- **Part Number:** LTC4261CUFD  
- **Package:** 28-Lead QFN (4mm x 5mm)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Input Voltage Range:** 36V to 57V (IEEE 802.3af compliant)  
- **Output Voltage:** Adjustable  
- **Power Classification:** Supports IEEE 802.3af PD classification  

### **Descriptions:**  
The LTC4261CUFD is a single-port Power Sourcing Equipment (PSE) controller designed for PoE applications. It provides detection, classification, and power management for powered devices (PDs) in compliance with IEEE 802.3af standards.  

### **Features:**  
- **IEEE 802.3af Compliant:** Supports detection, classification, and power management.  
- **Programmable Current Limit:** Adjustable up to 400mA.  
- **Integrated Power MOSFET:** Reduces external component count.  
- **Low Power Dissipation:** High efficiency with minimal heat generation.  
- **Automatic MPS (Maintain Power Signature) Monitoring:** Ensures PD remains connected.  
- **Fault Protection:** Includes overcurrent, short-circuit, and thermal shutdown.  
- **I²C Interface:** Allows for digital control and monitoring.  

This information is strictly based on the manufacturer's datasheet and specifications.

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