A good PCB layout for the TPS23861PW involves keeping the high-current paths short and wide, using a solid ground plane, and placing the input capacitors close to the device. TI provides a recommended layout in the datasheet and application notes.
Choose input capacitors with a voltage rating that exceeds the maximum input voltage, and a capacitance value that meets the recommended range (e.g., 10uF to 22uF). Low-ESR capacitors like X5R or X7R ceramics are recommended for optimal performance.
The TPS23861PW can support cable lengths up to 100 meters, but this depends on the specific application, cable type, and power requirements. TI provides guidelines for cable length and type selection in the datasheet and application notes.
The TPS23861PW has a built-in overcurrent protection feature. To implement it, connect a sense resistor (Rs) between the SENSE pin and the output, and set the overcurrent threshold (Ilim) using an external resistor (Rlim) connected to the ILIM pin.
Yes, the TPS23861PW is suitable for PoE++ applications, supporting up to 60W of power delivery. However, ensure that the device is properly configured and the PCB is designed to handle the increased power requirements.
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
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