LM3880MF-1AD/NOPB - Texas Instruments

LM3880MF-1AD/NOPB Frequently Asked Questions (FAQs)

• What is the recommended power supply decoupling for the LM3880?
  TI recommends using a 10uF capacitor in parallel with a 0.1uF capacitor, both connected between the power supply pins (VIN and GND) to ensure stable operation.
• How do I prevent overheating of the LM3880?
  Ensure good heat sinking, use a heat sink with a thermal resistance of 1°C/W or less, and maintain a maximum junction temperature of 150°C to prevent overheating.
• What is the maximum allowed output power of the LM3880?
  The maximum allowed output power of the LM3880 is 68W per channel into a 4Ω load, but this can be limited by the power supply voltage, output impedance, and thermal considerations.
• Can I use the LM3880 in a bridged configuration?
  Yes, the LM3880 can be used in a bridged configuration to increase the output power, but this requires careful consideration of the power supply, output impedance, and thermal management.
• How do I protect the LM3880 from back-EMF and voltage spikes?
  Use a diode (e.g., 1N4007) in parallel with the output stage to protect against back-EMF, and consider adding a TVS (transient voltage suppressor) diode to protect against voltage spikes.