The MQ7813 series of modules is designed to be a reliable and efficient power source for small-power applications such as IP cameras, IP phones, industrial sensors, and gatekeepers. It extracts power from a conventional twisted pair Category 5 Ethernet cable and conforms to the IEEE 802.3af Power-over-Ethernet (PoE) standard.

The signature and control circuit of the module provides the PoE compatibility signature and power classification required by the Power Sourcing Equipment (PSE) before providing up to 13W power to the port. The MQ7813 is compatible with Class 0 through Class 3 equipment.

The high-efficiency DC/DC converter operates over a wide input voltage range and provides a regulated low ripple and low-noise output. This power supply features a wide operating voltage range of 40V to 57V, providing flexibility for various applications. It offers dual output current options of 5V at 2A and 12V at 1.1A, making it suitable for different device power requirements. The low output voltage ripple of only 70mVpp (5V at 2A) ensures stable and reliable output voltage, while the high efficiency of 86% at an input of 48V and a load of 12V at 1.1A results in efficient energy conversion and reduced energy waste.

In addition to its high efficiency, this power supply is designed for high reliability, with a 500k hour MTBF and overcurrent/short circuit protection, ensuring long-term stable operation and safe use. It is UL/IEC/EN60950 compliant and has a ROHS compliant option available. The DC/DC converter also has built-in overload and short-circuit output protection, providing an added layer of safety.