Описание
The MPQ7731 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 180m? Power MOSFETs Mute / Standby Mode The MPQ7731 utilizes a full bridge output structure capable of delivering 5W – 30W into 4? 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.
30W into 4? 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 180m? Switches Turn On / Turn Off Click and Pop Suppression Integrated Short Circuit Protection Integrated Thermal shutdown Mute / Standby Mode Available in 20-Pin TSSOP Package
