MP7731 - 30W Class D Mono Bridged Audio Amplifier TSSOP20

MP7731 - 30W Class D Mono Bridged Audio Amplifier TSSOP20

Key Specifications

Typical Application Circuit

Applications

• Flat Panel LCD and PDP Displays
• Notebook and Multimedia Computers
• Televisions
• Home Stereos
• DVD and VCD Players
• Game Devices and Systems

Design Notes

• The output LC filter corner should sit well below the modulation frequency but above the audio band; component tolerance shifts it more than the nominal value suggests.
• Switching residuals on the speaker leads are best handled at layout — keep the filter close to the amplifier pins.
• Power supply rejection is frequency dependent, so a clean rail still matters at the modulation harmonics.
• The exposed pad is the thermal path; solder it to a copper area sized for continuous output power, not for idle.

Common Questions