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The RT5509 is a mono BTL class-D amplifier with cutting-edge speaker protection algorithm. Also, a built-in DC-DC step-up converter is used to provide efficient power for class-D amplifier. I2S interface supports two different audio sources while a pair of auxiliary DATAI/O is used for stereo mode or pass-through application. Chip information including gain, speaker protection output or current sense is able to be monitored via DATAO through proper register setting. Speaker protection provides mechanical / thermal protection with accuracy of 10%/±10ºC of rated limit.

Applications

  • Smart Phone
  • Tablet
Technical Documents
TitleItem TypeLast UpdateDownload
Richtek Product Selection Guide [Jan., 2025] Selection Guide2025/01/13
Power Management for Video Doorbell App. Note2021/10/08
Part NumberPackage TypePackage Qty.Free SampleDistributorStockBuy From Authorized Distributor
RT5509WSCWL-CSP3.04x2.99-48(BSC)1,500 Request Digikey 340 Buy
Mouser 1,500 Buy
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