TPA3121D2 Datasheet PDF - TI

●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