'Bridged' related articles 1

  1. 2009/01/21 MP7731 - 5W - 30W Class D Mono Bridged Audio Amplifier
DESCRIPTION
The MP7731 is a mono, 5W - 30W Class D Audio Amplifier. It is one of MPS’ second generation of fully integrated audio amplifiers which dramatically reduces solution size by integrating the following:
*Start Up / Shut Down Pop Elimination
*Short Circuit Protection Circuits
*180mΩ Power MOSFETs
*Mute / Standby Mode
The MP7731 utilizes a full bridge output structure capable of delivering 5W - 30W into 4Ω speakers. As in all other MPS Class D Audio Amplifiers, this device exhibits the high fidelity of a Class AB amplifier with an efficiency of 90%. The circuit is based on the MPS’ proprietary variable frequency topology Analog Adaptive Modulation (AAM™, Patent No. 6,420,930; other patents pending) that delivers excellent PSRR, fast response time and operates on a single power supply.

FEATURES
*30W into 4Ω with VDD = 16.5V
*90% Efficiency at 5W
*Amplifies Full Audio Range with Low THD+N
-Typical = 0.1%
*9.5V to 18V Supply Voltage Operation
*Full Bridge Output Drive
*4 Integrated 180mΩ Switches
*Turn On / Turn Off Click and Pop Suppression
*Integrated Short Circuit Protection
*Integrated Thermal shutdown
*Mute / Standby Mode

APPLICATIONS
*Flat Panel LCD and PDP Displays
*Notebook and Multimedia Computers
*Televisions
*Home Stereos
*DVD and VCD Players
*Game Devices and Systems
*Monitors

EV0045, MP7731DF

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