UCD9248PFCR datasheet by Texas Instruments

UCD9248PFCR Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for the UCD9248PFCR to minimize noise and ensure optimal performance?
  A 4-layer PCB with a solid ground plane, separate power and ground planes for the analog and digital sections, and a star-configuration for the power supply connections is recommended. Additionally, keep the switching nodes (SW and BST) away from sensitive analog nodes.
• How do I optimize the compensation network for the UCD9248PFCR?
  Use the TI Power Stage Designer tool to generate a compensation network based on the specific application requirements. The tool provides a suggested compensation network based on the input voltage, output voltage, and switching frequency.
• What is the maximum allowed input voltage for the UCD9248PFCR?
  The maximum allowed input voltage for the UCD9248PFCR is 24V. Exceeding this voltage may damage the device.
• How do I ensure the UCD9248PFCR operates within the recommended operating junction temperature range?
  Implement a proper thermal design, including a heat sink and thermal interface material, to keep the junction temperature below 125°C. Monitor the device temperature using the internal thermal monitoring feature or an external temperature sensor.
• What is the purpose of the EN pin on the UCD9248PFCR, and how should it be used?
  The EN (Enable) pin is used to enable or disable the device. Connect the EN pin to a logic-level signal (e.g., from a microcontroller) to control the device's operation. When EN is low, the device is disabled, and when EN is high, the device is enabled.