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IRAUDAMP8 Datasheet(PDF) 11 Page - International Rectifier

Part # IRAUDAMP8
Description  120W x 4 Channel Class D Audio Power Amplifier
Download  34 Pages
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Manufacturer  IRF [International Rectifier]
Direct Link  http://www.irf.com
Logo IRF - International Rectifier

IRAUDAMP8 Datasheet(HTML) 11 Page - International Rectifier

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IRAUDAMP8 REV 1.0
Efficiency
Fig 9 shows efficiency characteristics of the IRAUDAMP8. The high efficiency is achieved by
following major factors:
1) Low conduction loss due to the DirectFETs offering low RDS(ON)
2) Low switching loss due to the DirectFETs offering low input capacitance for fast rise and
fall times
Secure dead-time provided by the IRS2093, avoiding cross-conduction
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0
50
100
150
Output power (W)
AMP8 35V 4ohms
Fig 9, IRAUDAMP8 4 ohms load Stereo, ±B supply = ±35V
Thermal Considerations
With this high efficiency, the IRAUDAMP8 design can handle one-eighth of the continuous rated
power, which is generally considered to be a normal operating condition for safety standards,
without additional heatsinks or forced air-cooling.


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