Product Summary

The TPA2008D2PWPR is a third generation 5-V class-D amplifier from Texas Instruments. Improvements to previous generation devices include: dc volume control, lower supply current, lower noise floor, higher efficiency, smaller packaging, and fewer external components. Most notably, a new filter-free class-D modulation technique allows the TPA2008D2PWPR to directly drive the speakers, without needing a low-pass output filter consisting of two inductors and three capacitors per channel. Eliminating this output filter saves approximately 30% in system cost and 75% in PCB area. The applications of the TPA2008D2PWPR include LCD Projectors, LCD Monitors, Powered Speakers and Battery Operated and Space Constrained Systems.

Parametrics

TPA2008D2PWPR absolute maximum ratings: (1)VDD ,PVDD, Supply voltage range: -0.3 V to 6 V; (2)VI (RINN, RINP, LINN, LINP, VOLUME), Input voltage range: 0 V to VDD; (3)TA, Operating free-air temperature range: -40 to 85℃; (4)TJ, Operating junction temperature range: -40 to 150℃; (5)Tstg, Storage temperature range: -65 to 85℃; (6)Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: 260℃.

Features

TPA2008D2PWPR features: (1)3 W Per Channel into 3- Ω Speakers (THD+N = 10%); < 0.045% THD at 1.5 W, 1 kHz, 3- Ω Load; (2)DC Volume Control With 2-dB Steps From -38 dB to 20 dB; (3)Filter Free Modulation Scheme Operates Without a Large and Expensive LC Output Filter; (4)Extremely Efficient Third Generation 5-V Class-D Technology: Low Supply Current, 7 mA; Low Shutdown Control, 1 μ A; Low Noise Floor, -80 dBV; Maximum Efficiency into 3 Ω , 78%; Maximum Efficiency into 8 Ω , 88%; PSRR, -70 dB; (5)Integrated Depop Circuitry; (6)Operating Temperature Range, -40 to 85℃; (7)Space-Saving, Surface Mount PowerPAD Package.

Diagrams

TPA2008D2PWPR functional block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
TPA2008D2PWPR
TPA2008D2PWPR

Texas Instruments

Audio Amplifiers Stereo Hi-Pwr 5-V Filter-Free Class-D

Data Sheet

0-1: $2.95
1-25: $2.38
25-100: $2.16
100-250: $1.96
TPA2008D2PWPRG4
TPA2008D2PWPRG4

Texas Instruments

Audio Amplifiers Stereo Hi-Pwr 5-V Filter-Free Class-D

Data Sheet

0-1570: $1.31
1570-2000: $1.29
2000-5000: $1.28