UCC28C43DRG4 datasheet by Texas Instruments

UCC28C43DRG4 Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance?
  Texas Instruments provides a recommended PCB layout in the UCC28C43DRG4 datasheet, but it's essential to follow good PCB design practices, such as keeping the input and output traces separate, using a solid ground plane, and minimizing loop areas to reduce EMI.
• How do I ensure reliable startup and shutdown of the UCC28C43DRG4?
  To ensure reliable startup and shutdown, it's crucial to follow the recommended startup and shutdown sequences outlined in the datasheet. Additionally, ensure that the input voltage rises and falls monotonically, and that the output voltage is properly decoupled to prevent voltage spikes.
• What is the maximum output current capability of the UCC28C43DRG4?
  The maximum output current capability of the UCC28C43DRG4 is dependent on the input voltage, output voltage, and thermal conditions. Refer to the datasheet's electrical characteristics table and thermal derating curves to determine the maximum output current for your specific application.
• How do I compensate for the UCC28C43DRG4's output voltage ripple?
  Output voltage ripple can be compensated for by adding an output filter capacitor (Cout) and/or an output inductor (Lout) to the circuit. The values of these components can be calculated using the equations provided in the datasheet or by using TI's online calculator tools.
• What is the purpose of the EN (enable) pin, and how do I use it?
  The EN (enable) pin is used to enable or disable the UCC28C43DRG4. When the EN pin is high, the device is enabled, and when it's low, the device is disabled. This pin can be used to implement power sequencing, shutdown, or low-power standby modes in your application.