The TPS23753AEVM-004 is an evaluation module for TPS23753A a IEEE 802.3-2005 compliant, powered device (PD) controller and power supply controller optimised for isolated converter topologies. The evaluation module is targeted at low cost, simple, 10W flyback converter applications. The TPS23753A supports a number of input voltage ORing options including highest voltage, external adapter preference, and PoE preference. The PoE interface features an external detection signature pin that can also be used to disable the internal hotswap MOSFET. This allows the PoE function to be turned off. Classification can be programmed to any of the defined types with a single resistor. The dc/dc controller features a bootstrap startup mechanism with an internal, switched current source. This provides the advantages of cycling overload fault protection without the constant power loss of a pull up resistor.
● The TPS23753AEVM-004 is a low cost, basic design
● Simple gate drive, shottky diode rectified secondary
● 10W output power from power over Ethernet, 48V or 24V adapter and 6W output power from a 12V adapter
● 5V or 12V output voltage with simple BOM changes
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