The LM5072MHX-50 is a high-performance integrated Power over Ethernet (PoE) Powered Device (PD) interface and PWM controller provided by Texas Instruments, a leader in semiconductor solutions. This versatile component is designed to extract power from a conventional twisted pair Category 5 Ethernet cable, conforming to the IEEE 802.3af Power-over-Ethernet standard.

Key Features

• Integrated PoE Interface: The LM5072MHX-50 incorporates a signature resistor and classification interface, streamlining the design process for PoE-enabled devices.
• Flexible Power Options: It supports both auxiliary non-PoE power sources and PoE applications, providing a seamless transition between the two power modes.
• Advanced PWM Controller: The integrated 100V PWM controller offers exceptional power conversion efficiency, which is critical for maintaining the thermal performance of PoE devices.
• Programmable Oscillator Frequency: The oscillator frequency can be programmed to suit a variety of applications, allowing for optimized performance and reduced external component count.
• Thermal Protection: The LM5072MHX-50 is equipped with over-temperature protection, ensuring reliable operation under a wide range of environmental conditions.

Applications

The LM5072MHX-50 is ideal for a range of applications, including but not limited to:

• VoIP Phones
• Wireless Access Points
• Security Cameras
• Industrial Controllers
• Network Routers and Switches

Technical Specifications

• Input Voltage Range: 9V to 100V
• Operating Temperature Range: -40°C to 125°C
• Package: 20-Pin HTSSOP
• Adjustable Undervoltage Lockout
• Programmable Oscillator Frequency up to 1MHz

The LM5072MHX-50 is available in a thermally enhanced surface mount package, which aids in efficient heat dissipation. Its robust design and comprehensive feature set make it an excellent choice for designers looking to integrate PoE capabilities into their products with minimal additional circuitry.