LMH2180SDE/NOPB datasheet by Texas Instruments

LMH2180SDE/NOPB Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance of the LMH2180SDE?
  A good PCB layout for the LMH2180SDE involves keeping the input and output traces short and away from each other, using a solid ground plane, and placing decoupling capacitors close to the device. A 4-layer PCB with a dedicated power plane and a dedicated ground plane is recommended.
• How do I ensure the LMH2180SDE is stable and doesn't oscillate?
  To ensure stability, make sure to follow the recommended component values and PCB layout guidelines. Also, ensure that the input and output capacitors are of high quality and have low ESR. Additionally, adding a small resistor (e.g., 10 ohms) in series with the output can help dampen oscillations.
• What is the maximum input voltage that the LMH2180SDE can handle?
  The LMH2180SDE can handle input voltages up to 12V, but it's recommended to keep the input voltage below 10V to ensure reliable operation and to prevent overheating.
• Can I use the LMH2180SDE in a high-temperature environment?
  The LMH2180SDE is rated for operation up to 85°C, but it's recommended to derate the output current and input voltage at higher temperatures to prevent overheating and ensure reliable operation.
• How do I troubleshoot issues with the LMH2180SDE?
  To troubleshoot issues with the LMH2180SDE, start by checking the input voltage, output voltage, and output current. Use an oscilloscope to check for oscillations or noise on the output. Also, check the PCB layout and component values to ensure they match the recommended values.