UCC28C44DGKG4 datasheet by Texas Instruments

UCC28C44DGKG4 Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance?
  Texas Instruments provides a recommended PCB layout in the UCC28C44DGKG4 datasheet, but it's essential to follow good PCB design practices, such as keeping the switching node (SW) away from sensitive analog circuits, using a solid ground plane, and minimizing trace lengths and widths to reduce EMI.
• How do I choose the right input capacitor value?
  The input capacitor value depends on the input voltage, output voltage, and desired ripple current. A general rule of thumb is to choose a capacitor with a value between 10uF to 22uF, with a voltage rating of at least 1.5 times the maximum input voltage. Consult the datasheet and application notes for more specific guidance.
• What is the maximum operating temperature range for this device?
  The UCC28C44DGKG4 has an operating temperature range of -40°C to 125°C. However, the device's performance and reliability may degrade at extreme temperatures. It's essential to ensure proper thermal management and heat sinking to maintain optimal performance.
• How do I implement overvoltage protection (OVP) and undervoltage protection (UVP)?
  The UCC28C44DGKG4 has built-in OVP and UVP features, but they require external resistors and capacitors to set the threshold voltages. Consult the datasheet and application notes for specific implementation details and component values.
• What is the recommended output capacitor value and type?
  The output capacitor value and type depend on the output voltage, output current, and desired ripple voltage. A general rule of thumb is to choose a low-ESR capacitor with a value between 10uF to 47uF, with a voltage rating of at least 1.5 times the maximum output voltage. Consult the datasheet and application notes for more specific guidance.