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IRAUDAMP9参考设计是一种单通道1.7千瓦(@2Ω的负载)半桥D类音频功率放大器。该参考设计演示了如何使用IRS2092S D类音频控制器和外部门控缓冲,实现保护电路,并设计使用IRFB4227(×2双)TO-220 MOSFET的最佳PCB布局。该参考设计可能需要额外的散热片或风扇正常运转(八分之一的连续额定功率)。该参考设计提供了所有必需的家用电源的易用性。1通道的设计能够比它的额定功率,并准备更大的散热片提供了更高的值(Rth<2°C / W)Applications
- Pro-Audio amplifiers
- Powered speakers
- Active Sub-woofers
- P.A. Systems
- Car audio amplifier
- Musical Instrument Amplifier
Features
- Output Power: 1.7 kW Single channel (2 Ω load, 1kHz, THD+N=10%),
- Residual Noise: 290μV, IHF-A weighted, AES-17 filter
- Distortion: 0.07% THD+N @ 600W, 2Ω
- Efficiency: 97% @ 1.7 kW, 2Ω
- Multiple Protection Features: Output Over-current protection (OCP), high side and low side
- Input Over-voltage protection (OVP),
- Input Under-voltage protection (UVP),
- Output DC-offset protection (DCP),
- Over-temperature protection (OTP)
- PWM Modulator: Self-oscillating half-bridge topology with optional clock synchronization
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