Audio Power Amplifier With Boost Converter To Drive Ceramic Speakers - National Semiconductor

The LM4802B integrates a Boost Converter with an Audio Power Amplifier to drive Ceramic Speakers in portable ap- plications. When powered by a 3V supply, it is capable of forcing 12Vp-p across a 2F + 30 bridge-tied-load (BTL) with less than 1% THD+N. Boomer Audio Power Amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4802B does not require boot- strap capacitors, or snubber circuits. Therefore it is ideally suited for portable applications requiring high output voltage and minimal size. The LM4802B features a low-power consumption shutdown mode. Additionally, the LM4802B features an internal ther- mal shutdown protection mechanism. The LM4802B contains advanced pop & click circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions. The LM4802B is unity-gain stable. Its gain is set by external resistors. By National Semiconductor Corporation
Part Manufacturer Description Datasheet Samples
LM4802BLQ/NOPB Texas Instruments Audio Power Amplifier with DC-DC converter to drive Ceramic Speakers 28-WQFN
LM4802B 's PackagesLM4802B 's pdf datasheet

LM4802B Pinout, Pinouts
LM4802B pinout,Pin out
This is one package pinout of LM4802B,If you need more pinouts please download LM4802B's pdf datasheet.

LM4802B Application circuits
LM4802B circuits
This is one application circuit of LM4802B,If you need more circuits,please download LM4802B's pdf datasheet.

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