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IRAUDAMP7S参考设计是一个双通道D类音频功率放大器,具有输出功率的可扩展性。该IRAUDAMP7S提供了可选择的半桥(立体声)和全桥(桥)模式。该参考设计演示了如何使用IRS2092 D类音频驱动IC,以及IR的数字音频双MOSFET,如IRFI4024H-117P,IRFI4019H-117P,IRFI4212H-117P和IRFI4020H-117P,在单层PCB。该设计展示了如何使用单面电路板实现在一个最佳的PCB布局外围电路。Features
- Output Power: Scalable output power from 25W- 500W (see Table 1)
- Residual Noise: 200 μV, IHF-A weighted, AES-17 filter
- Distortion: 0.007 % THD+N @ 60W, 4 Ω
- Efficiency: 90 % @ 500W, 8 Ω, Class D stage
- Multiple Protection Features: Over-current protection (OCP), high side and low side MOSFET
- Over-voltage protection (OVP),
- Under-voltage protection (UVP), high side and low side MOSFET
- DC-protection (DCP),
- Over-temperature protection (OTP)
- PWM topology: Self-oscillating PWM, half-bridge or full-bridge topologies selectable
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