TPS23785BEVM-522

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Evaluation and Demonstration Boards and Kits provide a platform for engineers to evaluate and test new products, from semiconductor components to full electronics systems. The TPS23785BEVM-522 is a example of such product used for evaluating and demonstrating the TPS23785 multi-port power over Ethernet (PoE) power source controller. This evaluation module (EVM) is used to develop applications that require PoE and to evaluate the features, functionality, and performance of the TPS23785.

The TPS23785BEVM-522 has a HDBT IEEE802.3bt compliant active splitter and receptacle combination that is capable of delivering up to 24W or 70W of power over Ethernet for PoE plus and up to 100W for Ultra PoE applications. The board accepts an input voltage of -48V and provides output power of 5V, 12V, or 24VDC. It is equipped with an on-board, adjustable resistor-based voltage regulator that allows for setting the output voltage and a through-hole mounting frame for securing the TPS23785BEVM-522 to a board assembly.

The TPS23785BEVM-522 is primarily used to evaluate how the TPS23785 power source controller can be used to manage the power source, control the power transfer from the source to the powered device (PD) and detect the power requirements from the PD. The evaluation module also demonstrates how the TPS23785 works with different types of PDs, how it can be used in power management systems, how it supports multiple PDs, and how it can be used in parallel for higher power applications.

The TPS23785BEVM-522 comes with a number of evaluation components and accessories. These include an ISSI IS31LT4318E PoE controller, a TLM diode array, PCB, USB to UART cable, LED indicator, and an ASix AX88772B Ethernet controller. These integrated components enable the TPS23785BEVM-522 to provide a full PoE development and evaluation platform that supports up to 50W for Power over Ethernet plus (PoE++) applications.

The IS31LT4318E PoE controller integrated on the TPS23785BEVM-522 is capable of managing the power output by automatically detecting and safely switching between PD\'s connected to its four ports. It 2 also detects and reports the current drawn by each PD, allowing the system to monitor the power efficiency and manage the power output accordingly. The ISSI controller also supports up to three Ethernet cables, allowing the system to power multiple PDs.

The TLM diode array, also integrated on the TPS23785BEVM-522, is used to detect the current drawn by each PD and adjust the power output accordingly. It is also capable of responding to short circuit scenarios and providing power to the PDs without disruption, ensuring a safe system operation.

The ASix AX88772B Ethernet controller integrated on the TPS23785BEVM-522 plays a crucial role in the system. It is used to establish communication between the device and the PDs, allowing the system to detect the power requirements from the PDs and adjust the power output accordingly. It also supports up to 125 watts of power for Ultra PoE applications.

The TPS23785BEVM-522 is ideal for developing applications that require PoE and evaluating the TPS23785 multi-port power over Ethernet power source controllers. With its integrated components and accessories, it provides a comprehensive development and evaluation platform for designing and testing PoE systems. It is a great tool for engineers looking to evaluate and demonstrate the features, functionality, and performance of the TPS23785.

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