UC3823AN datasheet by Texas Instruments

UC3823AN Frequently Asked Questions (FAQs)

• What is the recommended input capacitor value for the UC3823AN?
  The recommended input capacitor value is 10uF to 22uF, depending on the input voltage and current requirements. A larger capacitor value can help reduce input ripple and improve stability.
• How do I ensure the UC3823AN is stable and doesn't oscillate?
  To ensure stability, make sure to follow the recommended layout guidelines, use a sufficient input capacitor, and add a compensation capacitor (typically 10nF to 22nF) between the COMP and GND pins. Also, ensure that the output voltage is within the recommended range.
• What is the maximum output current capability of the UC3823AN?
  The UC3823AN can deliver up to 3A of output current, but this depends on the input voltage, output voltage, and thermal considerations. Be sure to check the thermal derating curves in the datasheet to ensure the device can handle the required output current.
• Can I use the UC3823AN in a synchronous buck converter configuration?
  Yes, the UC3823AN can be used in a synchronous buck converter configuration. However, you'll need to add an external FET driver and ensure that the device is properly configured for synchronous operation. Refer to the datasheet and application notes for more information.
• How do I adjust the output voltage of the UC3823AN?
  The output voltage of the UC3823AN can be adjusted by using a resistive divider network between the output and the FB (feedback) pin. The ratio of the resistors determines the output voltage. Refer to the datasheet for more information on the feedback network and output voltage adjustment.