MP7752

The MP7752 is an analog input, inductorless Class-D audio amplifier that can drive stereo speakers in a bridge-tied-load configuration. It is one of MPS’s suite of fully integrated audio amplifiers, which dramatically reduce solution size by integrating the following:

• 240mΩ power MOSFETs
• Start-up / Shutdown pop elimination
• Short-circuit protection circuits
• Advanced EMI performance 
• Inductorless while passing EMC tests

The MP7752 utilizes a stereo BTL structure capable of delivering 15W per channel into 8Ω speakers at a 16V power supply. MPS Class-D audio amplifiers exhibit the high fidelity of a Class-AB amplifier at high efficiencies. 

The MP7752 includes an internal circuit that allows the system automatically shut down when no audio signal is detected. This feature is ideal for energy-saving products and battery-operated applications. 

It also has an adjustable power limit function. The PLIMIT circuit sets a limit on the output peak-to-peak voltage. This is accomplished by limiting the duty cycle to a fixed maximum value. This limit can be thought of as a virtual voltage rail, which is lower than the supply connected to PVCC. The MP7752 is available in a TSSOP-28EP package.