PT5502C datasheet by Texas Instruments

PT5502C Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance?
  Texas Instruments provides a recommended PCB layout in the PT5502C datasheet, which includes guidelines for component placement, trace routing, and thermal management. Following this layout ensures optimal performance, reduced noise, and improved thermal dissipation.
• How do I select the correct input and output capacitors?
  The selection of input and output capacitors depends on the specific application requirements, such as voltage rating, capacitance value, and ESR. TI recommends using low-ESR capacitors with a voltage rating of at least 2x the input voltage. A capacitance value of 10uF to 22uF is typically suitable for most applications.
• What is the maximum ambient temperature for reliable operation?
  The PT5502C is rated for operation up to 85°C ambient temperature. However, for reliable operation, it's recommended to keep the ambient temperature below 70°C to ensure optimal performance and reduce the risk of thermal shutdown.
• How do I implement overvoltage protection (OVP) and undervoltage protection (UVP)?
  The PT5502C has built-in OVP and UVP features. To implement these features, connect the OVP pin to a voltage divider network that sets the desired overvoltage threshold. For UVP, connect the UVP pin to a voltage divider network that sets the desired undervoltage threshold. TI provides example circuits in the datasheet.
• What is the recommended input voltage range for optimal performance?
  The recommended input voltage range for the PT5502C is 4.5V to 18V. Operating outside this range may affect performance, efficiency, and reliability. It's essential to ensure the input voltage is within this range to achieve optimal performance.