DS8921AN datasheet by Texas Instruments

DS8921AN Frequently Asked Questions (FAQs)

• What is the recommended layout and routing for the DS8921AN?
  Texas Instruments provides a recommended layout and routing guide in the DS8921AN application note (SLUA271). It's essential to follow these guidelines to ensure proper operation and minimize noise and EMI issues.
• How do I choose the correct input capacitor values for the DS8921AN?
  The input capacitor values depend on the input voltage, output voltage, and desired ripple current. TI provides a capacitor selection guide in the DS8921AN datasheet (section 10.2.2.1). You can also use online capacitor selection tools or consult with a TI FAE for guidance.
• What is the maximum ambient temperature for the DS8921AN?
  The maximum ambient temperature for the DS8921AN is 85°C (185°F). However, the device can operate up to 125°C (257°F) with derating. Refer to the datasheet (section 6.3) for thermal derating information.
• Can I use the DS8921AN in a high-reliability or automotive application?
  Yes, the DS8921AN is qualified for automotive and high-reliability applications. It meets the AEC-Q100 standard and is designed to operate in harsh environments. However, you should consult with a TI FAE to ensure the device meets your specific application requirements.
• How do I troubleshoot issues with the DS8921AN, such as output voltage instability or overheating?
  TI provides a troubleshooting guide in the DS8921AN application note (SLUA271). You can also consult the datasheet, use online resources, or contact a TI FAE for assistance. Common issues include incorrect input capacitor values, poor PCB layout, or inadequate thermal management.