L6910GTR datasheet by STMicroelectronics

L6910GTR Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal thermal performance?
  STMicroelectronics provides a recommended PCB layout in the application note AN4553, 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 L6910GTR?
  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 maximum input voltage, and a capacitance value between 1uF to 10uF. Consult the application note AN4553 for more detailed guidance.
• What is the maximum allowed voltage drop across the internal switch?
  The maximum allowed voltage drop across the internal switch is typically around 0.5V to 1V, depending on the specific application and operating conditions. Exceeding this voltage drop may lead to reduced efficiency, increased heat generation, or even device failure.
• How do I ensure the L6910GTR is properly protected against overvoltage and undervoltage conditions?
  Implement overvoltage protection (OVP) and undervoltage protection (UVP) circuits to prevent damage to the L6910GTR. OVP can be achieved using a voltage supervisor or a dedicated OVP IC, while UVP can be implemented using a voltage detector or a reset IC. Consult the application note AN4553 for more information.
• What is the recommended operating temperature range for the L6910GTR?
  The recommended operating temperature range for the L6910GTR is -40°C to 150°C, with a maximum junction temperature (TJ) of 150°C. Operating the device outside this range may affect its performance, reliability, or lifespan.