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PMIC - Power Over Ethernet (PoE) Controllers

The PD81101EVB-15WT is an integrated Power Management and Power Over Ethernet (PoE) Controllers. It provides a wide range of features to meet the demand of power management, as well as integrated protection of the Ethernet port. It is designed to be more economical and reliable for any interconnected system.

Applications

The PD81101EVB-15WT has a variety of applications that make it popular in many consumer, industrial and commercial products. Its integrated PoE circuits enable it to be used in multiple types of products such as: * Networked CCTV systems* Access control and security systems * Industrial/commercial control networks* Automated Locks * Audio/Visual networks * Intrusion and fire alarm systemsIt is also suitable for any device which requires PoE remote power, such as IP (Internet Protocol) cameras, access points, switches, routers and remote system monitoring.

Working Principle

The PD81101EVB-15WT is an integrated solution that combines both the power management and PoE elements. It provides three power sources - +12V, DC/DC converters and IEEE 802.3af/at compliant IEEE 802.3af/at compliant IEEE 802.3af/at PoE (PD) ports. The DC/DC converters are capable of outputting up to 8A each, and the PoE ports can support both class 0 and class 3 signaling. When the device is used for PoE applications, the supplied power is fed into one of the ports and is then regulated to meet the necessary power requirements. The integrated PoE circuitry is designed to provide protection to the Ethernet ports from surges and shorts, as well as providing electromagnetic/radio frequency immunity and ESD (electrostatic discharge) protection. The integrated SMBus and I2C interfaces provide communication between the host application board and the PD81101EVB-15WT, allowing system configuration, monitoring and the switching of power sources. This allows the device to be used in a wide variety of applications.

Conclusion

The PD81101EVB-15WT is an integrated power management and PoE controller, designed to support multiple power sources and provide an economical and reliable power management solution. Its integrated protection circuitry ensures the reliability of the Ethernet ports, while the I2C and SMBus interfaces enable communication with other products. It is suitable for a wide variety of consumer, industrial and commercial applications and this makes it a popular choice for many system designs.

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