2-W STEREO AUDIO POWER AMPLIFIER WITH DC VOLUME CONTROLThe TPA0132 is a stereo Audio Power Amplifier in a 24-pin TSSOP thermally enhanced package capable of
delivering 2 W of continuous RMS power per channel into 3- loads. This device minimizes the number of
external components needed, which simplifies the design and frees up board space for other features. When
driving 1 W into 8- speakers, the TPA0132 has less than 0.4% THD+N across its specified frequency range.
Included within this device is integrated depop circuitry that virtually eliminates transients that cause noise in
the speakers.
Amplifier gain is controlled by means of a dc voltage input on the VOLUME terminal. There are 31 Discrete steps
covering the range of +20 dB (maximum volume setting) to 40 dB (minimum volume setting) in 2 dB steps.
When the VOLUME terminal exceeds 3.54 V, the device is muted. An internal input MUX allows two sets of
stereo inputs to the Amplifier In notebook applications, where internal speakers are driven as BTL and the line
outputs (often Headphone drive) are required to be SE, the TPA0132 automatically switches into SE mode when
the SE/BTL input is activated, and this effectively reduces the gain by 6 dB.
The TPA0132 consumes only 10 mA of supply current during normal operation. A miserly shutdown mode is
included that reduces the supply current to less than 150 A.
The PowerPAD package (PWP) delivers a level of thermal performance that was previously achievable only
in TO-220-type packages. Thermal impedances of approximately 35C/W are readily realized in multilayer PCB
applications. This allows the TPA0132 to operate at full power into 8- loads at ambient temperatures of 85C. By Texas Instruments
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Part | Manufacturer | Description | Datasheet | Samples | |
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TPA0132PWPR | Texas Instruments | 2W Stereo APA With DC Volume Control 24-HTSSOP -40 to 85 | |||
TPA0132PWP | Texas Instruments | 2W Stereo APA With DC Volume Control 24-HTSSOP -40 to 85 |
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TPA0132 Pb-Free | TPA0132 Cross Reference | TPA0132 Schematic | TPA0132 Distributor |
TPA0132 Application Notes | TPA0132 RoHS | TPA0132 Circuits | TPA0132 footprint |