LM3485MMX datasheet by Texas Instruments

LM3485MMX Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the LM3485MMX?
  The maximum input voltage that can be applied to the LM3485MMX is 42V, but it's recommended to keep it below 40V for reliable operation.
• How do I ensure the LM3485MMX operates within its thermal limits?
  To ensure the LM3485MMX operates within its thermal limits, make sure to provide adequate heat sinking, keep the ambient temperature below 85°C, and avoid high power dissipation.
• Can I use the LM3485MMX in a high-reliability or automotive application?
  Yes, the LM3485MMX is qualified for automotive and high-reliability applications, but it's essential to follow the recommended operating conditions and design guidelines to ensure reliability.
• How do I layout the PCB to minimize EMI and noise issues with the LM3485MMX?
  To minimize EMI and noise issues, follow good PCB layout practices, such as keeping the input and output traces separate, using a solid ground plane, and placing bypass capacitors close to the device.
• What is the recommended input capacitor value and type for the LM3485MMX?
  The recommended input capacitor value is 10uF to 22uF, and it's recommended to use a low-ESR ceramic or film capacitor to ensure stable operation.