MP7745

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40W Class-D Mono BTL Audio Amplifer



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Product Description

The MP7745 is a Stereo 2 x 20W Class-D Audio Amplifier. It is one of MPS' products of fully integrated audio amplifiers which dramatically reduces solution size by integrating the following: •250mΩ power MOSFETs,• Startup / Shutdown pop elimination, •Short circuit protection circuits. The MP7745 utilizes a single ended output structure capable of delivering 20W per channel into 4Ω speakers. MPS Class D Audio Amplifiers exhibit the high fidelity of a Class A/B amplifier at high efficiencies. The circuit is based on the MPS' proprietary variable frequency topology that delivers excellent linearity, fast response time and operates on a single power supply.

Product Features

  • 2 x 20W Output at VDD = 24V into 4Ω load
  • THD+N = 0.05% at 1W, 8Ω
  • 93% Efficiency at 20W, 4Ω & VDD = 24V
  • Low Noise (103µV Typical)
  • Switching Frequency Up to 1MHz
  • 9.5V to 26V Operation from a Single Supply
  • Integrated Startup and Shutdown Pop Elimination Circuit
  • Thermal and Short Circuit Protection
  • Integrated Power FETs
  • Pin Compatible with MP7722 and MP7742
  • Available in TSSOP20-Exposed Package

Parametrics

  • PackageTSSOP20E
  • GradeCatalog
  • TypeMono BTL
  • Isw Limit (A)4.5
  • Total Pout (max) (W)40
  • PSRR (dB)-59
  • THD+N (%) @1W0.05
  • Efficiency (%)93
  • Vin (max) (V)26
  • Vin (min) (V)9.5

Evaluation Kit

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Kit details

The EV7745DF-01A is the evaluation board for the MP7745, a stereo 20W Class D Audio Amplifier. It is one of MPS’ products of fully integrated audio amplifiers which dramatically reduce solution size by integrating the following:

  • 250mΩ power MOSFETs
  • Startup / Shutdown pop elimination
  • Short circuit protection circuits

The MP7745 utilizes a single ended output structure capable of delivering 2x20W into 4Ω speakers. MPS Class D Audio Amplifiers exhibit the high fidelity of a Class A/B amplifier at high efficiency. The circuit is based on the MPS’ AAMTM proprietary variable frequency topology that delivers excellent linearity, fast response time and operates on a single power supply.

$50.00 + tax