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The IRAUDAMP5 reference design is a two-channel, 120W half-bridge Class D audio power amplifier. This reference design demonstrates how to use the IRS2092S Class D audio controller and gate driver IC, implement protection circuits, and design an optimum PCB layout using the IRF6645 DirectFET MOSFETs. The resulting design requires no heatsink for normal operation (one-eighth of continuous rated power). The reference design provides all the required housekeeping power supplies for ease of use. The two-channel design is scalable for power and the number of channels.
IRAUDAMP5 Maximum Ratings
IRAUDAMP5 Features
Output Power: 120W x 2 channels, Total Harmonic Distortion (THD+N) = 1%, 1 kHz Residual Noise: 170V, IHF-A weighted, AES-17 filter Distortion: 0.005% THD+N @ 60W, 4 Efficiency: 96% @ 120W, 4, single-channel driven, Class D stage Multiple Protection Features: Over-current protection (OCP), high side and low side Over-voltage protection (OVP), Under-voltage protection (UVP), high side and low side DC-protection (DCP), Over-temperature protection (OTP) PWM Modulator: Self-oscillating half-bridge topology with optional clock synchronization
IRAUDAMP5 Typical Application
AV receivers Home theater systems Mini component stereos Powered speakers Sub-woofers Musical Instrument amplifiers Automotive after market amplifiers