1FEATURES
234· 10-W/Ch (stereo SE) into an 8-Ω Load From a
24-V Supply
· 20-W/Ch (mono BTL) into an 8-Ω Load from a
24-V Supply
· Operates From 10 V to 26 V
· Operates From +24 V LCD Backlight Supply
· Efficient Class-D Operation Eliminates Need
for Heat Sinks
· Four Selectable, Fixed-Gain Settings
· Single-Ended Analog Inputs
· Thermal and Short-Circuit Protection With
Auto Recovery
· 20-Pin DIP Package
· Advanced Power-Off Pop Reduction

APPLICATIONS
· Flat Panel Televisions
· DLP® TVs
· CRT TVs
· Powered Speakers

DESCRIPTION
The TPA3125D2 is a 10-W (per channel), efficient,
class-D audio power amplifier for driving stereo
speakers in a single-ended configuration; or, a mono speaker in a bridge-tied-load configuration. The
TPA3125D2 can drive stereo speakers as low as 4 Ω.
The efficiency of the TPA3125D2 eliminates the need
for an external heat sink when playing music. The
gain of the amplifier is controlled by two gain select pins. The gain selections are 20, 26, 32, and 36 dB.
The patented start-up and shutdown sequences
minimize pop noise in the speakers without additional
circuitry.
The thru-hole package allows placement on
single-sided printed circuit boards.