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TPS2377DR from TI,Texas Instruments

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TPS2377DR

Manufacturer: TI, Pb-free

IEEE 802.3af PoE Powered Device Controllers

Partnumber Manufacturer Quantity Availability
TPS2377DR TI, Pb-free 7540 In Stock

Description and Introduction

IEEE 802.3af PoE Powered Device Controllers The TPS2377DR is a Power over Ethernet (PoE) Powered Device (PD) interface controller manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Manufacturer:** Texas Instruments (TI)  
- **Part Number:** TPS2377DR  
- **Package:** SOIC-8  
- **Input Voltage Range:** 36V to 57V (IEEE 802.3at compliant)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Classification:** Supports IEEE 802.3af/at PD classification  
- **Power Dissipation:** Up to 25.5W (Class 4)  
- **Detection Signature:** 25kΩ resistor  
- **Inrush Current Limiting:** Programmable  
- **Under-Voltage Lockout (UVLO):** Adjustable  
- **Hot Swap MOSFET:** Integrated  
- **Efficiency:** High efficiency DC-DC converter support  

### **Descriptions:**  
The TPS2377DR is a PoE PD interface controller designed for IEEE 802.3af/at compliant applications. It integrates detection, classification, and inrush current limiting for PoE systems. The device supports high-power applications up to 25.5W and includes an integrated hot-swap MOSFET for simplified design.  

### **Features:**  
- IEEE 802.3af/at compliant  
- Integrated 0.4Ω hot swap MOSFET  
- Programmable inrush current limiting  
- Adjustable UVLO with hysteresis  
- Supports both 2-event and 4-event classification  
- Thermal shutdown protection  
- Robust fault protection (overload, short-circuit)  
- Low standby power consumption  

This information is based solely on the manufacturer's specifications.

Application Scenarios & Design Considerations

IEEE 802.3af PoE Powered Device Controllers

Alternative Part Number

  • LM5070MTCX --: Integrated PoE PD controller and DC-DC converter with similar functionality and pin-compatible architecture, suitable as a direct functional replacement.
  • MAX5941AESE+ --: IEEE 802.3af PoE PD interface controller with integrated hot-swap MOSFET, offering comparable PoE classification and detection features.
  • LTC4267CDHC --: PoE PD interface with integrated switching regulator controller, providing similar power-over-Ethernet front-end functionality for powered device designs.
  • MAX5941BESE+ --: IEEE 802.3af PoE PD interface controller offering comparable power classification and hot-swap control.

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