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RAUDAMP7S Datasheet(PDF) 3 Page - International Rectifier |
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RAUDAMP7S Datasheet(HTML) 3 Page - International Rectifier |
3 / 43 page www.irf.com Page 3 of 42 IRAUDAMP7S REV 1.3 Introduction The IRAUDAMP7S reference design is a two-channel Class D audio power amplifier that features output power scalability. The IRAUDAMP7S offers selectable half-bridge (stereo) and full-bridge (bridged) modes. This reference design demonstrates how to use the IRS2092 Class D audio driver IC, along with IR’s digital audio dual MOSFETs, such as IRFI4024H-117P, IRFI4019H-117P, IRFI4212H-117P and IRFI4020H-117P, on a single layer PCB. The design shows how to implement peripheral circuits on an optimum PCB layout using a single sided board. The resulting design requires a small heatsink for normal operation (one-eighth of continuous rated power). The reference design provides all the required housekeeping power supplies and protections. Unless otherwise noted, this user’s manual is based on 150V model, IRAUDAMP7S-150. Other output power versions can be configured by replacing components given in the component selection of Table 5 on page 36 Applications • AV receivers • Home theater systems • Mini component stereos • Powered speakers • Sub-woofers • Musical Instrument amplifiers • Automotive after market amplifiers 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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