LM4861MX/NOPB datasheet by Texas Instruments

LM4861MX/NOPB Frequently Asked Questions (FAQs)

• What is the recommended power supply decoupling for the LM4861?
  TI recommends using a 10uF capacitor in parallel with a 0.1uF capacitor, both connected between the power supply pins (VIN and GND) and placed as close to the device as possible.
• How do I ensure stability and prevent oscillations in the LM4861?
  To ensure stability, use a minimum of 100nF capacitor between the BYPASS pin and GND, and keep the power supply traces as short as possible. Also, avoid using long wires or cables for the input signals.
• What is the maximum power dissipation of the LM4861?
  The maximum power dissipation of the LM4861 is 2.5W. However, this value can be affected by the ambient temperature, PCB layout, and thermal management. It's essential to follow proper thermal design and heat sinking to ensure reliable operation.
• Can I use the LM4861 as a stereo amplifier?
  Yes, the LM4861 can be used as a stereo amplifier by using two devices, one for each channel. However, it's essential to ensure that the power supply and ground connections are properly decoupled and isolated to prevent crosstalk and noise.
• What is the minimum and maximum load impedance for the LM4861?
  The minimum recommended load impedance for the LM4861 is 4 ohms, and the maximum is 32 ohms. Operating the device outside of this range may affect its performance, stability, and reliability.