MP7745

2 x 20W Class D Stereo
Single Ended Audio Amplifer

Datasheet

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: 250mO 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 4O 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.

Features & Benefits

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

Active Part Numbers:

MP7745DF-LF-P MP7745DF-LF-Z

Meaning of P & Z

Evaluation Tools

EV7745DF-01A Evaluation Kit 20W Stereo Class D Single Ended Audio Amplifier EV Board

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’ AAM^TM proprietary variable frequency topology that delivers excellent linearity, fast response time and operates on a single power supply.

$50.00
+ tax

Design Resources

Symbol, Footprint & 3D Model

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