TAS5631B Series

300-W stereo, 400-W mono, 25- to 52.5-V supply, PWM input Class-D audio amplifier

Catalog

300-W stereo, 400-W mono, 25- to 52.5-V supply, PWM input Class-D audio amplifier

Part	Type	Features	Supplier Device Package	Operating Temperature [Max]	Max Output Power x Channels @ Load	Package / Case	Package / Case [custom]	Package / Case [custom]	Mounting Type	Output Type	Voltage - Supply [Max]	Voltage - Supply [Min]
Texas Instruments TAS5631DKDR	Class D	Depop Digital Inputs Short-Circuit and Thermal Protection Shutdown	44-HSSOP	70 °C	300 W 600 W	44-BSSOP Exposed Pad	11 mm	0.433 in	Surface Mount	1-Channel (Mono) or 2-Channel (Stereo)	52.5 V	25 V
Texas Instruments TAS5631BDKD	Class D	Depop Digital Inputs Short-Circuit and Thermal Protection Shutdown	44-HSSOP	70 °C	300 W 600 W	44-BSSOP Exposed Pad	11 mm	0.433 in	Surface Mount	1-Channel (Mono) or 2-Channel (Stereo)	52.5 V	25 V
Texas Instruments TAS5631BPHD	Class D	Depop Digital Inputs Short-Circuit and Thermal Protection Shutdown	64-HTQFP (14x14)	70 °C	300 W 600 W	64-TQFP Exposed Pad			Surface Mount	1-Channel (Mono) or 2-Channel (Stereo)	52.5 V	25 V
Texas Instruments TAS5631PHDR	Class D	Depop Digital Inputs Short-Circuit and Thermal Protection Shutdown	64-HTQFP (14x14)	70 °C	300 W 600 W	64-TQFP Exposed Pad			Surface Mount	1-Channel (Mono) or 2-Channel (Stereo)	52.5 V	25 V
Texas Instruments TAS5631PHD	Class D	Depop Digital Inputs Short-Circuit and Thermal Protection Shutdown	64-HTQFP (14x14)	70 °C	300 W 600 W	64-TQFP Exposed Pad			Surface Mount	1-Channel (Mono) or 2-Channel (Stereo)	52.5 V	25 V
Texas Instruments TAS5631BDKDR	Class D	Depop Digital Inputs Short-Circuit and Thermal Protection Shutdown	44-HSSOP	70 °C	300 W 600 W	44-BSSOP Exposed Pad	11 mm	0.433 in	Surface Mount	1-Channel (Mono) or 2-Channel (Stereo)	52.5 V	25 V
Texas Instruments TAS5631BPHDR	Class D	Depop Digital Inputs Short-Circuit and Thermal Protection Shutdown	64-HTQFP (14x14)	70 °C	300 W 600 W	64-TQFP Exposed Pad			Surface Mount	1-Channel (Mono) or 2-Channel (Stereo)	52.5 V	25 V
Texas Instruments TAS5631DKD	Class D	Depop Digital Inputs Short-Circuit and Thermal Protection Shutdown	44-HSSOP	70 °C	300 W 600 W	44-BSSOP Exposed Pad	11 mm	0.433 in	Surface Mount	1-Channel (Mono) or 2-Channel (Stereo)	52.5 V	25 V

Catalog

300-W stereo, 400-W mono, 25- to 52.5-V supply, PWM input Class-D audio amplifier

Key Features

• PurePath™ HD Enabled Integrated Feedback Provides:Signal Bandwidth up to 80 kHz for High-Frequency Content From HD SourcesUltralow 0.03% THD at 1 W Into 4 ΩFlat THD at All Frequencies for Natural Sound80-dB PSRR (BTL, No Input Signal)>100-dB (A-weighted) SNRClick- and Pop-Free Start-UpMultiple Configurations Possible on the Same PCB With Stuffing Options:Mono Parallel Bridge-Tied Load (PBTL)Stereo Bridge-Tied Load (BTL)2.1 Single-Ended Stereo Pair and Bridge-Tied Load SubwooferQuad Single-Ended OutputsTotal Output Power at 10% THD+N400 W per Channel in Mono PBTL Configuration300 W per Channel in Stereo BTL Configuration145 W per Channel in Quad Single-Ended ConfigurationHigh-Efficiency Power Stage (>88%) With 60-mΩ Output MOSFETsTwo Thermally Enhanced Package Options:PHD (64-Pin QFP)DKD (44-Pin PSOP3)Self-Protection Design (Including Undervoltage, Overtemperature, Clipping,and Short-Circuit Protection) With Error ReportingEMI Compliant When Used With Recommended System DesignAPPLICATIONSMini Combo SystemAV ReceiversDVD ReceiversActive SpeakersAll other trademarks are the property of their respective ownersPurePath™ HD Enabled Integrated Feedback Provides:Signal Bandwidth up to 80 kHz for High-Frequency Content From HD SourcesUltralow 0.03% THD at 1 W Into 4 ΩFlat THD at All Frequencies for Natural Sound80-dB PSRR (BTL, No Input Signal)>100-dB (A-weighted) SNRClick- and Pop-Free Start-UpMultiple Configurations Possible on the Same PCB With Stuffing Options:Mono Parallel Bridge-Tied Load (PBTL)Stereo Bridge-Tied Load (BTL)2.1 Single-Ended Stereo Pair and Bridge-Tied Load SubwooferQuad Single-Ended OutputsTotal Output Power at 10% THD+N400 W per Channel in Mono PBTL Configuration300 W per Channel in Stereo BTL Configuration145 W per Channel in Quad Single-Ended ConfigurationHigh-Efficiency Power Stage (>88%) With 60-mΩ Output MOSFETsTwo Thermally Enhanced Package Options:PHD (64-Pin QFP)DKD (44-Pin PSOP3)Self-Protection Design (Including Undervoltage, Overtemperature, Clipping,and Short-Circuit Protection) With Error ReportingEMI Compliant When Used With Recommended System DesignAPPLICATIONSMini Combo SystemAV ReceiversDVD ReceiversActive SpeakersAll other trademarks are the property of their respective owners

Description

The TAS5631B is a high-performance PWM input class-D amplifier with integrated closed-loop feedback technology (known as PurePath HD technology) with the ability to drive up to 300 W(1)stereo into 4-Ω to 8-Ω speakers from a single 50-V supply. PurePath HD technology enables traditional AB-amplifier performance (<0.03% THD) levels while providing the power efficiency of traditional class-D amplifiers. Unlike traditional class-D amplifiers, the distortion curve does not increase until the output levels move into clipping. PurePath HD technology enables lower idle losses, making the device even more efficient. The TAS5631B is a high-performance PWM input class-D amplifier with integrated closed-loop feedback technology (known as PurePath HD technology) with the ability to drive up to 300 W(1)stereo into 4-Ω to 8-Ω speakers from a single 50-V supply. PurePath HD technology enables traditional AB-amplifier performance (<0.03% THD) levels while providing the power efficiency of traditional class-D amplifiers. Unlike traditional class-D amplifiers, the distortion curve does not increase until the output levels move into clipping. PurePath HD technology enables lower idle losses, making the device even more efficient.