VNV35NV0413TR datasheet by STMicroelectronics

VNV35NV0413TR Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance?
  STMicroelectronics provides a recommended PCB layout in the application note AN4979, which includes guidelines for thermal management, decoupling, and layout considerations to ensure optimal performance and minimize electromagnetic interference (EMI).
• How do I select the correct input capacitor values?
  The input capacitor values depend on the input voltage, output voltage, and switching frequency. A general guideline is to use a capacitor with a value between 10uF to 22uF, with a voltage rating of at least 1.5 times the input voltage. Refer to the application note AN4979 for more detailed guidance.
• What is the maximum allowed voltage on the enable pin (EN)?
  The enable pin (EN) has a maximum allowed voltage of 6V, which is higher than the recommended operating voltage of 5V. However, it's essential to ensure that the voltage on the EN pin does not exceed 6V to prevent damage to the device.
• How do I implement overcurrent protection?
  The VNV35NV0413TR has an internal overcurrent protection feature that limits the output current to 3.5A. To implement additional overcurrent protection, you can use an external current sense resistor and a comparator to detect overcurrent conditions and shut down the device if necessary.
• What is the thermal resistance of the package?
  The thermal resistance of the VNV35NV0413TR package (PowerSSO-24) is typically around 20°C/W (junction-to-ambient) and 4°C/W (junction-to-case). This information is essential for thermal management and heat sink design.