PM8803C

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PM8803C is a Power Over Ethernet (PoE) controller developed by PMIC manufacturer to provide a specialty PoE solution for medium power applications. The controller is specialized to handle up to 25W in Class 2 or 4, and provides a range of features including power extension, overload protection, overheat protection, and overvoltage protection. With the controller, users can easily and safely manage medium-power PoE applications, ensuring a safe and reliable experience

The PM8803C operates on a two-phase, P-N split DCDC buck topology, with a master and slave power output configuration. The master output provides a fixed output voltage, while the slave output provides an adjustable output voltage. Both outputs can be controlled through the embedded power sequencing controller, allowing the user to integrate the controller into their system designs. The sequencing can be used to adjust output voltage as needed and to allow for power management features such as soft-start or pre-charging prior to system startup.

The PM8803C also has a wide input voltage range of 36V to 70V, making it suitable for applications that could require a high input voltage, such as PoE PDs. The maximum output power of 25W provides additional flexibility for the users, and provides additional safety features with the overload and overvoltage protection circuitry.

The controller features a fast response time of just 2µs, making it suitable for time-critical applications, such as powering an Ethernet cable. The controller has a range of management features as well, such as temperature sensing, enable/disable control, over-current protection, over-voltage protection, soft-start, and over-temperature protection. This provides the user with a versatile and flexible solution.

The PM8803C is suitable for a wide range of applications, including IP cameras, VoIP/SIP phones, access points, wireless bridges, industrial Ethernet switches, and wireless access points. The controller is easy to integrate into existing systems, and with its versatile features, it provides a robust and reliable solution for the user.

In summary, the PM8803C is an efficient, robust and reliable Power Over Ethernet controller. It provides a reliable solution for medium power applications, with its wide input voltage range, fast response time, and wide range of management features. With its advanced features and flexibility, the PM8803C is an ideal choice for any PoE application needing reliable and high-performance performance.

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