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MAX5941ACSE from MAXIM,MAXIM - Dallas Semiconductor

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MAX5941ACSE

Manufacturer: MAXIM

IEEE 802.3af-Compliant Power-Over-Ethernet Interface/PWM Controller for Power Devices

Partnumber Manufacturer Quantity Availability
MAX5941ACSE MAXIM 448 In Stock

Description and Introduction

IEEE 802.3af-Compliant Power-Over-Ethernet Interface/PWM Controller for Power Devices The MAX5941ACSE is a Power over Ethernet (PoE) interface controller manufactured by Maxim Integrated (now part of Analog Devices).  

### **Specifications:**  
- **Package:** 16-pin narrow SOIC (CSE)  
- **Operating Voltage Range:** 36V to 57V (IEEE 802.3af compliant)  
- **Detection Voltage:** 2.7V to 10V  
- **Classification Current:** Programmable (IEEE 802.3af compliant)  
- **Power Dissipation:** 1.5W (max)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The MAX5941ACSE is designed for use in Powered Devices (PD) in PoE systems. It integrates detection, classification, and undervoltage lockout (UVLO) functions to comply with IEEE 802.3af standards. It provides a regulated output for PD applications while ensuring safe power-up and operation.  

### **Features:**  
- IEEE 802.3af compliant  
- Integrated detection and classification  
- Programmable inrush current control  
- Thermal shutdown protection  
- Under-voltage lockout (UVLO)  
- Supports both 2-event and 4-event classification  
- Low-power dissipation  

For detailed electrical characteristics and application circuits, refer to the official datasheet.

Application Scenarios & Design Considerations

IEEE 802.3af-Compliant Power-Over-Ethernet Interface/PWM Controller for Power Devices

Alternative Part Number

  • LTC4263CS#PBF --: Pin-compatible Power over Ethernet PD interface controller with integrated hot-swap MOSFET, functionally similar to the MAX5941A and widely available.
  • TPS23750PWPR --: IEEE 802.3af PoE PD controller and DC-DC converter with similar integrated hot-swap and classification features, suitable as a functional replacement.
  • SI3402-B-GM --: Integrated PoE PD interface and switching regulator offering comparable functionality for powered-device designs, usable as an alternative with minor circuit adjustments.

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