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LM5071MT-80 from NS,National Semiconductor

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LM5071MT-80

Manufacturer: NS

Power Over Ethernet PD Controller with Auxiliary Power Power Over Ethernet PD Controller with Auxiliary Power

Partnumber Manufacturer Quantity Availability
LM5071MT-80,LM5071MT80 NS 2477 In Stock

Description and Introduction

Power Over Ethernet PD Controller with Auxiliary Power Power Over Ethernet PD Controller with Auxiliary Power The LM5071MT-80 is a Power over Ethernet (PoE) interface controller manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Part Number:** LM5071MT-80  
- **Manufacturer:** National Semiconductor (NS)  
- **Type:** PoE PD (Powered Device) Controller  
- **Operating Voltage Range:** 36V to 57V (IEEE 802.3af compliant)  
- **Output Voltage:** Adjustable  
- **Package:** 16-Pin TSSOP  
- **Operating Temperature Range:** -40°C to +125°C  
- **Features:**  
  - Integrated 100V, 0.5Ω power MOSFET  
  - Programmable inrush current limit  
  - Thermal shutdown protection  
  - Under-voltage lockout (UVLO)  
  - IEEE 802.3af compliant  

### **Descriptions and Features:**  
The LM5071MT-80 is designed for Power over Ethernet (PoE) applications, providing a complete interface for a Powered Device (PD). It integrates a high-voltage power MOSFET and control circuitry to manage power delivery from a Power Sourcing Equipment (PSE) to the PD.  

Key features include:  
- **IEEE 802.3af Compliance:** Ensures compatibility with standard PoE systems.  
- **Inrush Current Control:** Prevents excessive current during startup.  
- **Thermal Protection:** Shuts down the device in case of overheating.  
- **Adjustable Output Voltage:** Allows flexibility in PD power requirements.  
- **Robust Design:** Supports a wide input voltage range and harsh operating conditions.  

This IC is commonly used in VoIP phones, wireless access points, and other PoE-powered devices.

Partnumber Manufacturer Quantity Availability
LM5071MT-80,LM5071MT80 NSC 10 In Stock

Description and Introduction

Power Over Ethernet PD Controller with Auxiliary Power Power Over Ethernet PD Controller with Auxiliary Power The LM5071MT-80 is a Power over Ethernet (PoE) interface IC manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Input Voltage Range:** 36V to 57V (IEEE 802.3af compliant)  
- **Output Voltage:** Adjustable  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 16-Lead TSSOP  
- **Switching Frequency:** Up to 500kHz  
- **Integrated Power MOSFET:** Yes  
- **Compliance:** IEEE 802.3af standard  

### **Descriptions:**  
The LM5071MT-80 is a highly integrated PoE interface controller designed for Power Sourcing Equipment (PSE) applications. It provides detection, classification, and power management for powered devices (PDs) in Ethernet networks.  

### **Features:**  
- **Detection & Classification:** Compliant with IEEE 802.3af  
- **Programmable Current Limit:** Protects against overloads  
- **Thermal Shutdown:** Prevents overheating  
- **Under-Voltage Lockout (UVLO):** Ensures proper operation  
- **Low Standby Power Consumption**  
- **Supports High-Efficiency DC-DC Conversion**  

This IC is commonly used in PoE switches, routers, and midspan injectors.

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