MP8005DF-LF-Z

Power Over Ethernet (PoE) Controllers

Power-over-Ethernet (PoE) controller is a specialized integrated circuit (IC) that links both power and data of an Ethernet cable connection. A POE controller is a system that enables power and communications over a single Ethernet cable between powered and non-powered devices. The MP8005DF-LF-Z is an example of a POE controllers which follows the IEEE 802.3af/at specifications for PoE networks and systems.

In other words, the MP8005DF-LF-Z contains sophisticated circuitry that converts the electrical current produced by an Ethernet cable into a power source for non-powered devices. This means that, through a single Ethernet cable point, it is possible to connect devices that would otherwise require multiple cables for both power and data. It also reduces device installation time dramatically and eliminates the need for any additional wiring.

Application Field

PoE controllers, such as the MP8005DF-LF-Z, are commonly used in a variety of applications, such as surveillance, access control and building automation systems, where connected devices cannot be powered by a native AC power source. It is also useful in applications such as UTMS, industrial control systems, and network access points, which are frequently required to operate in challenging or hostile environments.

The MP8005DF-LF-Z PoE controller is particularly versatile and can be used to power low power devices such as cameras, Wi-Fi Access Points, VoIP phones, and equipment requiring less than 750mA. Its support for power sourcing equipment\'s (PSE) power (up to 32W) and data delivery over a single Ethernet cable makes it a perfect choice for these type of applications.

Working Principle

The MP8005DF-LF-Z is an IEEE 802.3af/at compliant PSE controller which is designed to be used as the power circuitry in PoE systems. This integrated circuit converts the power received on the power pins into a regulated 12V ~ 52V DC output.

It features two power pins, which are responsible for the output voltage range and signal detection. The two differential power pins of the MP8005DF-LF-Z are used to receive the data and power signal of the 802.3af/at Ethernet cable. The controller then uses the signal detection pins to detect the presence of a powered device, and the power pins to detect the power signal on the line.

Once detected, the MP8005DF-LF-Z controller will then convert the power signal from the power pins into regulated DC power (up to 52v) on the output pins. This is to ensure that the device connected to the PoE system is receiving the desired voltage for its operation.

The MP8005DF-LF-Z includes various protection features and circuitry to ensure reliable operation and maximum safety. This includes protection against short circuits, power over-current, over-temperature and reverse-polarity protection.

Conclusion

In conclusion, the MP8005DF-LF-Z PoE Controller is a powerful, versatile and reliable solution for connecting and powering low power devices over a single Ethernet cable. Its support for both power and data over the same cable, as well as a wide range of protection features make it an ideal choice forPoE applications.