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TAS5622A

TAS5622A Series

125-W stereo, 250-W mono, 12- to 34-V, PWM input Class-D audio amplifier w/ thermal enhancement

Manufacturer: Texas Instruments

Catalog

125-W stereo, 250-W mono, 12- to 34-V, PWM input Class-D audio amplifier w/ thermal enhancement

Key Features

PurePath HD Integrated Feedback Provides:0.025% THD at 1 W into 4 Ω> 65-dB PSRR (No Input Signal)> 105 dB (A weighted) SNRPreclipping Output for Control of a Class-G PowerSupplyReduced Heat Sink Size Due to Use of 40mΩOutput MOSFET With > 90% Efficiency at FullOutput PowerOutput Power at 10%THD+N125-W and 4-Ω BTL Stereo Configuration250-W and 2-Ω PBTL Mono ConfigurationOutput Power at 1%THD+N105-W and 4-Ω BTL Stereo Configuration210-W and 2-Ω PBTL Mono ConfigurationClick and Pop Free Start-upError Reporting Self-Protected Design With UVP,Overtemperature, and Short-Circuit ProtectionEMI Compliant When Used With RecommendedSystem Design44-Pin HTSSOP (DDV) Package for ReducedBoard SizePurePath HD Integrated Feedback Provides:0.025% THD at 1 W into 4 Ω> 65-dB PSRR (No Input Signal)> 105 dB (A weighted) SNRPreclipping Output for Control of a Class-G PowerSupplyReduced Heat Sink Size Due to Use of 40mΩOutput MOSFET With > 90% Efficiency at FullOutput PowerOutput Power at 10%THD+N125-W and 4-Ω BTL Stereo Configuration250-W and 2-Ω PBTL Mono ConfigurationOutput Power at 1%THD+N105-W and 4-Ω BTL Stereo Configuration210-W and 2-Ω PBTL Mono ConfigurationClick and Pop Free Start-upError Reporting Self-Protected Design With UVP,Overtemperature, and Short-Circuit ProtectionEMI Compliant When Used With RecommendedSystem Design44-Pin HTSSOP (DDV) Package for ReducedBoard Size

Description

AI
The TAS5622A device is a thermally enhanced version of the class-D power amplifier based on the TAS5612A using large MOSFETs for improved power efficiency and a novel gate drive scheme for reduced losses in idle and at low output signals leading to reduced heat sink size. The unique preclipping output signal can be used to control a class-G power supply. This combined with the low idle loss and high power efficiency of the TAS5622A leads to industry-leading levels of efficiency ensuring a super "green" system. The TAS5622A uses constant voltage gain. The internally matched gain resistors ensure a high Power Supply Rejection Ratio giving an output voltage only dependent on the audio input voltage and free from any power supply artifacts. The high integration of the TAS5622A makes the amplifier easy to use; and, using TI’s reference schematics and PCB layouts leads to fast design in time. The TAS5622A is available in the space-saving, surface-mount, 44-pin HTSSOP package. The TAS5622A device is a thermally enhanced version of the class-D power amplifier based on the TAS5612A using large MOSFETs for improved power efficiency and a novel gate drive scheme for reduced losses in idle and at low output signals leading to reduced heat sink size. The unique preclipping output signal can be used to control a class-G power supply. This combined with the low idle loss and high power efficiency of the TAS5622A leads to industry-leading levels of efficiency ensuring a super "green" system. The TAS5622A uses constant voltage gain. The internally matched gain resistors ensure a high Power Supply Rejection Ratio giving an output voltage only dependent on the audio input voltage and free from any power supply artifacts. The high integration of the TAS5622A makes the amplifier easy to use; and, using TI’s reference schematics and PCB layouts leads to fast design in time. The TAS5622A is available in the space-saving, surface-mount, 44-pin HTSSOP package.