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RT5509 - Speaker Amplifier

Datasheet Summary

Description

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.

Features

  • Class-D Speaker AMP.
  • 4.3W Output Power @ 9.5V, 8 Load, THD < 1%.
  • 0/3/6/9/12/15/18dB Boost Gain.
  • 20V Output Noise @ 0dB Gain.
  • Boost Converter.
  • Adaptive Boost for Speaker, Boost from Battery Supply Up to Programmed Voltage, Max 9.5V.
  • Power Modes : Adaptive Boost, Fixed Boost, Bypass Mode.
  • Switching Frequency 2MHz, Maximum Output Current 1.5A.
  • Support CCM / DCM Compensation, Feedback AD.
  • Digital Part : Voltage Loop in Boost Mode.
  • Digital.

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Datasheet preview – RT5509

Datasheet Details

Part number RT5509
Manufacturer Richtek
File Size 3.01 MB
Description Speaker Amplifier
Datasheet download datasheet RT5509 Datasheet
Additional preview pages of the RT5509 datasheet.

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Full PDF Text Transcription

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RT5509 Speaker Amplifier with Speaker Protection General Description 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%/±10C of rated limit. Ordering Information RT5509 Package Type WSC : WL-CSP-48B 3.04x2.
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