L9935013TR datasheet by STMicroelectronics

L9935013TR Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal thermal performance?
  STMicroelectronics provides a recommended PCB layout in the application note AN4571, which includes guidelines for thermal vias, copper pours, and component placement to minimize thermal resistance and ensure reliable operation.
• How do I select the correct input capacitor for the L9935D013TR?
  The input capacitor selection depends on the input voltage, output voltage, and output current. A general guideline is to choose a capacitor with a voltage rating of at least 1.5 times the input voltage, and a capacitance value between 1uF to 10uF. Consult the datasheet and application notes for more specific guidance.
• What is the maximum allowed voltage drop across the L9935D013TR?
  The maximum allowed voltage drop across the L9935D013TR is typically around 1.5V to 2V, depending on the specific application and output current. Exceeding this voltage drop may lead to reduced efficiency, increased heat generation, or even device failure.
• Can I use the L9935D013TR in a high-temperature environment?
  The L9935D013TR is rated for operation up to 150°C, but the device's performance and reliability may degrade at high temperatures. Consult the datasheet and application notes for thermal derating guidelines and ensure proper thermal management in your design.
• How do I troubleshoot issues with the L9935D013TR, such as output voltage instability or overheating?
  Start by verifying the input voltage, output voltage, and output current are within the specified ranges. Check the PCB layout for thermal issues, and ensure proper decoupling and filtering. Consult the datasheet, application notes, and STMicroelectronics' technical support resources for further guidance.