The MP7758 is an inductorless, analog input class-D audio amplifier that drives stereo speakers in a bridge-tied load configuration.
The device is a fully integrated audio amplifier, which reduces solution size dramatically. It integrates 240mΩ power MOSFETs and shortcircuit protection circuits. The MP7758 features start-up/shutdown pop elimination, as well as advanced EMI performance. The device can pass EMC tests without an inductor. The device utilizes a stereo BTL structure capable of delivering 15W per channel into 8Ω speakers with a 16V power supply. MPS classD audio amplifiers exhibit the high fidelity of class-AB amplifiers, with high efficiency.
The MP7758 includes an internal circuit that allows the system to automatically shut down after the absence of an audio signal is detected.This feature is well-suited for energy-using products and battery-operated applications.
The device offers an adjustable power limit (PLIMIT) function. The PLIMIT circuit sets a limit on the output peak-to-peak voltage. This is done by limiting the duty cycle to a fixed maximum value. This limit functions as a virtual voltage rail, and is lower than the supply connected to PVCC.
The MP7758 is available in a TSSOP-28 EP package.
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