TPS23861PW

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The TPS23861PW is a power over Ethernet (PoE) controller integrated circuit (IC) designed to help manufacturers create PoE-compatible products. Powered by any power source ranging from two or four wires of 9V to 24V DC, it enables rapid development of Ethernet-powered products. The TPS23861PW can deliver up to 30 watts of power to connected devices, and also monitors voltage, current, and power. It is an efficient, versatile IC for creating PoE-enabled products.

The main application of the TPS23861PW is in the creation of low cost, highly efficient PoE-compatible devices such as VoIP phones, security cameras, access control systems, and IP phones. As these devices require a power connection to an Ethernet port, the TPS23861PW can provide the necessary power while keeping the overall system cost low. Additionally, the TPS23861PW can convert non-PoE sources of 9V-24V DC into PoE-compliant power.

The TPS23861PW offers wide flexibility with the voltage, current, and power it provides. It is capable of delivering up to 12W of power across two ports and up to 30W when connected to four ports. It can monitor up to four pairs of ports and up to 16 ports total. The output power is adjustable between 5V-28V, allowing for different power requirements for various PoE-enabled devices.

The operating principle of the TPS23861PW is fairly simple. The IC draws power from the available source through its two primary power lines. The power is then converted using an on-chip high frequency switching converter, and then regulated by the TPS23861PW. The regulated power can then be used to power the devices connected to it.

The TPS23861PW also features two predefined current limits to prevent excessive power draw and protect connected devices. Additionally, the TPS23861PW also includes a enable/disable pin to manage power supply to devices connected to it and enable or disable the current limit. The enable/disable pin can also be used to control the current limit parameters and adjust the output power.

Overall, the TPS23861PW is an efficient and versatile integrated circuit for creating cost-effective, high power PoE-compatible products. It provides a wide range of output power, supports multiple port configurations, and allows for current limit parameters to be adjusted. The IC is also designed to protect connected devices from excessive power draw, making it a great choice for applications that use multiple PoE-enabled devices.

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