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MPQ7795 - Mono BTL Class-D Audio Amplifier

General Description

The MPQ7795 is an automotive-grade, low-EMI, differential analog input Class-D audio amplifier with I2C diagnostics.

The device is a fully integrated audio amplifier that can drive a mono speaker in a bridge-tied load (BTL) configuration, and it significantly reduces the solution size.

Key Features

  • an adjustable power limit (PLIMIT) function. The PLIMIT circuit sets a limit on the output’s peak-to-peak voltage (VPK-PK). This is accomplished by limiting the duty cycle to a fixed maximum value. This limit can be considered a virtual voltage rail, and it is below the supply connected to PVDD. The device statuses can be reported to the microcontroller (MCU) via the I2C interface. The parameters can also be set via the I2C interface. The MPQ7795 is available in a QFN-24 (4mmx4mm) package, and i.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MPQ7795 2.2MHz, Low-EMI, 24.5W, Mono BTL Class-D Audio Amplifier with Diagnostics, AEC-Q100 Qualified DESCRIPTION The MPQ7795 is an automotive-grade, low-EMI, differential analog input Class-D audio amplifier with I2C diagnostics. The device is a fully integrated audio amplifier that can drive a mono speaker in a bridge-tied load (BTL) configuration, and it significantly reduces the solution size. The MPQ7795 utilizes a BTL structure capable of delivering 24.5W into 4Ω speakers with a 14.4V power supply (PVDD). MPS’s Class-D audio amplifiers exhibit the high fidelity of ClassAB amplifiers, as well as high efficiency. The switching frequency (fSW) can be set to 330kHz, 384kHz, 470kHz, or 2.2MHz. The MPQ7795’s efficiency exceeds 90% during both 470kHz and 2.2MHz operation.