MAX5988CETP+T

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Controller (PD), DC/DC
Number of Channels:	1
Power - Max:	6.49W
Internal Switch(s):	Yes
Auxiliary Sense:	Yes
Standards:	802.3af (PoE)
Voltage - Supply:	8.8 V ~ 60 V
Current - Supply:	3.3mA
Operating Temperature:	-40°C ~ 85°C
Package / Case:	20-WFQFN Exposed Pad
Supplier Device Package:	20-TQFN (4x4)
Base Part Number:	MAX5988

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Power Over Ethernet (PoE) Controllers - MAX5988CETP+T Application Field and Working Principle

Power Over Ethernet (PoE) controllers have become increasingly popular in the last few years due to their ability to provide power to connected devices over an Ethernet cable. The MAX5988CETP+T controller is one of the more popular models and is used in a wide range of applications. This article will discuss the application field and working principle of the MAX5988CETP+T PoE controller.The MAX5988CETP+T PoE controller is used to provide power to Ethernet-enabled devices such as VoIP phones, CCTV cameras, and wireless access points. It is capable of delivering up to 15.4W of power over a single Ethernet cable using the IEEE 802.3af Power Source Equipment (PSE) interface standard. The MAX5988CETP+T is designed to be compliant with the PoE and PoE+ standards, making it suitable for a wide range of applications.The MAX5988CETP+T is based on the MAX5988CETP integrated power management controller, which provides the necessary hardware and software components to supply up to 15.4W of power to powered devices. The controller includes a boost converter to regulate voltage and current, an NFET switch to turn the output on and off, a voltage detector to detect when the PoE voltage is present, and a Controller Area Network (CAN) transceiver to receive and transmit data.The controller is designed to provide a constant voltage output to the connected devices. This is achieved by using a feedback loop that monitors the current drawn by the device and adjusts the output voltage accordingly. The output voltage is further regulated by the inclusion of a voltage detector and current limit setting which ensures that any abnormal conditions do not damage either the powered device or the MAX5988CETP+T itself.The MAX5988CETP+T is an ideal solution for applications where a reliable supply of power is needed in an Ethernet cable, such as in security systems, access control, and other similar applications. The controller is simple to configure and operate, making it highly suitable for those not experienced in PoE power supply design.In conclusion, the MAX5988CETP+T PoE controller is a powerful and reliable solution for providing power to Ethernet-enabled devices. It is capable of delivering up to 15.4W of power and is compliant with both PoE and PoE+ standards, making it suitable for a wide range of applications. The controller includes a boost converter, NFET switch, voltage detector, and CAN transceiver, providing all the hardware and software needed to reliably and safely supply power.

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