TPA0103 Series

1.75-W, stereo, analog input Class-AB audio amplifier

Catalog

1.75-W, stereo, analog input Class-AB audio amplifier

Part	Features	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Output Type	Max Output Power x Channels @ Load	Max Output Power x Channels @ Load	Package / Case	Package / Case	Mounting Type	Voltage - Supply [Max]	Voltage - Supply [Min]	Type
Texas Instruments TPA0103PWP	Input Multiplexer Mute Shutdown	24-HTSSOP	85 °C	-40 °C	3-Channel	2.1 W	0.575 W	0.173 in 4.4 mm	24-PowerTSSOP	Surface Mount	5.5 V	3 V	Class AB
Texas Instruments TPA0103PWPR	Input Multiplexer Mute Shutdown	24-HTSSOP	85 °C	-40 °C	3-Channel	2.1 W	0.575 W	0.173 in 4.4 mm	24-PowerTSSOP	Surface Mount	5.5 V	3 V	Class AB

Catalog

1.75-W, stereo, analog input Class-AB audio amplifier

Key Features

• Desktop Computer Amplifier Solution1.75-W Bridge Tied Load (BTL) Center Channel500-mW L/R Single-Ended ChannelsLow Distortion Output< 0.05% THD+N at Full PowerFull 3.3-V and 5-V SpecificationsSurface-Mount Power Package24-Pin TSSOPL/R Input MUX FeatureShutdown Control...IDD= 5 uAPowerPAD is a trademark of Texas Instruments Incorporated.Desktop Computer Amplifier Solution1.75-W Bridge Tied Load (BTL) Center Channel500-mW L/R Single-Ended ChannelsLow Distortion Output< 0.05% THD+N at Full PowerFull 3.3-V and 5-V SpecificationsSurface-Mount Power Package24-Pin TSSOPL/R Input MUX FeatureShutdown Control...IDD= 5 uAPowerPAD is a trademark of Texas Instruments Incorporated.

Description

The TPA0103 is a 3-channel audio power amplifier in a 24-pin TSSOP thermal package primarily targeted at desktop PC or notebook applications. The left/right (L/R) channel outputs are single ended (SE) and capable of delivering 500 mW of continuous RMS power per channel into 4-loads with a 3.3-V supply voltage. Amplifier gain is externally configured by means of two resistors per input channel and does not require external compensation for settings of 1 to 10. A two channel input MUX circuit is integrated on the L/R channel inputs to allow two sets of stereo inputs to the amplifier. In the typical application, the center channel amplifier is driven from a mix of the L/R inputs to produce a monaural representation of the stereo signal. The center channel amplifier can be shut down independently of the L/R output for speaker muting in headphone applications. The TPA0103 also features a full shutdown function for power sensitive applications holding the bias current to 5 uA. The PowerPAD package (PWP) delivers a level of thermal performance that was previously achievable only in TO-220-type packages. Thermal impedances of less than 35°C/W are readily realized in multilayer PCB applications. This allows the TPA0103 to operate at full power at ambient temperature of up to 85°C. The TPA0103 is a 3-channel audio power amplifier in a 24-pin TSSOP thermal package primarily targeted at desktop PC or notebook applications. The left/right (L/R) channel outputs are single ended (SE) and capable of delivering 500 mW of continuous RMS power per channel into 4-loads with a 3.3-V supply voltage. Amplifier gain is externally configured by means of two resistors per input channel and does not require external compensation for settings of 1 to 10. A two channel input MUX circuit is integrated on the L/R channel inputs to allow two sets of stereo inputs to the amplifier. In the typical application, the center channel amplifier is driven from a mix of the L/R inputs to produce a monaural representation of the stereo signal. The center channel amplifier can be shut down independently of the L/R output for speaker muting in headphone applications. The TPA0103 also features a full shutdown function for power sensitive applications holding the bias current to 5 uA. The PowerPAD package (PWP) delivers a level of thermal performance that was previously achievable only in TO-220-type packages. Thermal impedances of less than 35°C/W are readily realized in multilayer PCB applications. This allows the TPA0103 to operate at full power at ambient temperature of up to 85°C.