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Class D Audio Drivers -- Si8241BB-B-IS1 -- View Larger Image
Class D Audio Drivers -- Si8241BB-B-IS1-Image

Silicon Labs' Si824x audio drivers are isolated Class D gate drivers that power audio systems delivering from 30 W up to 1000 W of audio power. Based on Silicon Labs’ proprietary isolation technology, the Si824x Class D audio drivers incorporate input-to-output isolation, which enables level-translation of signals without additional external circuits. The Si824x audio drivers feature adjustable dead-time control for achieving optimal THD, overlap protection that safeguards against shoot-through current damage, robust immunity to latch-up and high-voltage transients, and lower BOM costs and PCB footprints compared to non-isolated gate drive solutions. See the sound quality performance of the Si824x audio driver over the audible spectrum using the Class D Sound Quality Demonstration.

Features

  • 0.5A (Si8241) & 4A (Si8244) peak output current
    PWM input
  • High precision and linear programmable dead-time generator
  • High latch-up immunity, > 100V/ns
  • Built-in isolation and level translation in one package
  • 1500 Vrms output-to-output isolation
  • 2500 Vrms input-to-input isolation
  • Up to 8MHz operation
  • Wide operating range: -40 to +125 C
  • Transient immunity > 30 kV/us
  • RoHS compliant narrow body 16-pin SOIC package


Product Category
Operational Amplifiers
Performance
Supply Voltage (VS)
4.5 to 5.5 volts
Source Current (IS)
2.5 milliamps
Quiescent Current (IQ)
2 to 3 microamps
Operating Temperature
-40 to 125 C (-40 to 257 F)

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Package Characteristics
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Features