A good PCB layout for the UCC28180DR involves keeping the input and output stages separate, using a star-ground configuration, and placing the input filter components close to the IC. Additionally, using a solid ground plane and minimizing trace lengths can help reduce EMI.
The input filter components (RIN, CIN, and LIN) should be chosen based on the input voltage, frequency, and desired attenuation. A good starting point is to use the values recommended in the datasheet, and then adjust them based on the specific application requirements.
The UCC28180DR can deliver up to 1.5A of output current, but this may vary depending on the input voltage, output voltage, and thermal conditions. It's essential to check the datasheet and perform thermal calculations to ensure the device can handle the required output current.
The UCC28180DR has a built-in overcurrent protection feature that can be enabled by connecting the OCP pin to a resistor divider network. The resistor values should be chosen based on the desired overcurrent threshold and the output voltage.
The EN (enable) pin is used to turn the device on and off. It's an active-high input, so connecting it to a logic high (e.g., VCC) enables the device, while connecting it to a logic low (e.g., GND) disables it. This pin can be used to implement power sequencing or to turn off the device during shutdown or standby modes.
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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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