Description

The MP7740DN-LF-Z is a second-generation fully integrated audio amplifier produced by MPS. It is a mono 20W Class D audio amplifier that comes with 180mΩ power MOSFETs, startup/shutdown pop elimination, short circuit protection circuits, and mute/standby features integrated into the product. This product significantly reduces the solution's size and provides a high-quality audio output.

Specifications and features

• 20W Output at VDD = 24V into a 4Ω load
• THD+N = 0.04% at 1W, 8Ω
• 93% Efficiency at 20W
• Low Noise (190µV Typical)
• Switching Frequency Up to 1MHz
• 9.5V to 24V Operation from a Single Supply
• Integrated Startup and Shutdown Pop Elimination Circuit
• Thermal Protection
• Integrated 180mΩ Switches
• Mute/Standby Modes (Sleep)
• Available in Tiny 8-Pin SOIC and PDIP Packages

Application Scenarios

The MP7740DN-LF-Z is best suited for devices and applications that require high-quality audio output. Here are some examples:

• Surround Sound DVD Systems
• Televisions
• Flat Panel Monitors
• Multimedia Computers
• Home Stereo Systems

Comparison

• High-quality audio output
• Integrated features such as startup/shutdown pop elimination, short circuit protection circuits, and mute/standby modes
• Small solution size
• Switching Frequency Up to 1MHz
• Thermal Protection

• Designed for mono audio output only
• Requires a single power supply between 9.5V to 24V