The TPA3121D2 is a 15-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 TPA3121D2 can drive stereo speakers as low as 4 Ω. The efficiency of the TPA3121D2 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.
● 10-W/Ch Stereo Into an 8-Ω Load From a 24-V Supply
● 15-W/Ch Stereo Into a 4-Ω Load from a 22-V Supply
● 30-W/Ch Mono Into an 8-Ω Load from a 22-V Supply
● Operates From 10 V to 26 V
● Can Run From +24 V LCD Backlight Supply
● Efficient Class-D Operation Eliminates Need for Heat Sinks
● Four Selectable, Fixed-Gain Settings
● Internal Oscillator to Set Class D Frequency (No External
●Components Required)
● Single-Ended Analog Inputs
● Thermal and Short-Circuit Protection With Auto Recovery
● Space-Saving Surface Mount 24-Pin TSSOP Package
● Advanced Power-Off Pop Reduction
● APPLICATIONS
● Flat Panel Display TVs
● DLP TVs
● CRT TVs
● Powered Speakers
●DLP Is a trademark of Texas Instruments
