IR IRS2053M 120Wx3路D类音频功率放大器参考设计
IR 公司的IRS2053M集成了三路高压高性能D类音频功率放大器驱动器和PWM调制器和保护电路.和外接MOSFET以及元件一起,可以实现完整的3路D类音频功率放大器.本文介绍了IRS2053M 主要特性, 功能方框图, 典型连接框图, OTA输入噪音电压测试电路图以及采用IRS2053M 和IRF6665的120Wx3路D类音频功率放大器参考设计IRAUDAMP11主要特性, D类功率放大器方框图和系统级IRAUDAMP11方框图,电路图以及所用电材料清单和机械材料清单.
The IRS2053 integrates three channels of high voltage, high performance Class D audio amplifier drivers with PWM modulators and protections. In conjunction with external MOSFET and external components, a complete 3 channel Class D audio amplifier can be realized. The IRS2053 is designed with floating analog inputs and protection control interface pin especially for half bridge topology. High and low side MOSFET are protected from over current conditions by a programmable bi-directional current sensing. Essential elements of PWM modulator section allow flexible system design. A small MLPQ48 package enhances the benefit of smaller size of Class D topology.
The IRS2053M digital audio driver is a three channel Class D audio driver housed in a 48 pin MLPQ. The IRS2053M features clipping detection outputs, DC offset detection input, over temperature sensor inputs and a fault reporting output.
IRS2053M 主要特性:
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