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LM4651 - Overture Audio Power Amplifier

General Description

The IC combination of the LM4651 driver and the LM4652 power MOSFET provides a high efficiency, Class D subwoofer amplifier solution.

The LM4651 is a fully integrated conventional pulse width modulator driver IC.

Key Features

  • Conventional pulse width modulation. Externally controllable switching frequency. 50kHZ to 200kHz switching frequency range. Integrated error amp and feedback amp. Turn.
  • on soft start and under voltage lockout. Over modulation protection (soft clipping). Short circuit current limiting and thermal shutdown protection. n 15 Lead TO.
  • 220 isolated package. n Self checking protection diagnostic. n n n n n n n.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LM4651 & LM4652 Overture™ 170W Class D Audio Power Amplifier Solution August 2000 LM4651 & LM4652 Overture™ Audio Power Amplifier 170W Class D Audio Power Amplifier Solution General Description The IC combination of the LM4651 driver and the LM4652 power MOSFET provides a high efficiency, Class D subwoofer amplifier solution. The LM4651 is a fully integrated conventional pulse width modulator driver IC. The IC contains short circuit, under voltage, over modulation, and thermal shut down protection circuitry. It contains a standby function, which shuts down the pulse width modulation and minimizes supply current. The LM4652 is a fully integrated H-bridge power MOSFET IC in a TO-220 power package.