A good PCB layout for the UCC28089DR involves keeping the high-frequency switching nodes (e.g., SW and VIN) away from sensitive analog nodes, using a solid ground plane, and minimizing loop areas. TI provides a recommended layout in the datasheet and application notes.
Choose components based on the specific requirements of your design, such as output voltage, current, and frequency. TI provides guidance on component selection in the datasheet and application notes. You can also use online tools, such as TI's Power Stage Designer, to help with component selection.
The UCC28089DR has a maximum junction temperature of 150°C. Ensure reliable operation by providing adequate heat sinking, using a thermal pad, and following TI's thermal design guidelines. You can also use thermal simulation tools to estimate the device's temperature.
The UCC28089DR has built-in OCP and SCP features. Implement these features by connecting the OCP pin to a resistor divider network and setting the threshold voltage according to the datasheet. You can also use external components to enhance protection.
The UCC28089DR is a higher-power version of the UCC28083, with a higher switching frequency and current capability. The UCC28089DR also has additional features, such as adjustable soft-start and a wider input voltage range.
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UCC28089DR Overview
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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.
