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PAM8904 - 18VPP OUTPUT PEIZO SOUNDER DRIVER

General Description

The DIODES™ PAM8904 is a piezo sounder driver with integrated charge pump boost converter.

The PAM8904 is capable of driving a ceramic/piezo sounder with 24VPP from a 5.5V power supply.

The charge pump can operate in a 1x, 2x, or 3x mode.

Key Features

  • thermal shutdown, over current protection, over voltage protection and under voltage lock-out. The PAM8904 is available in a 16-pin U-QFN3030-16 (Type B) package, or 12-pin U-QFN3030-12 (Type A) package. CN1 GND VO2 NC U-QFN3030-16 (Type B) Pin 1 (Top View) VIN CP2 VOUT CP1 CN2 VO1 EN 1 EN2 DIN Features.
  • Supply Voltage Range from 1.8V to 5.5V.
  • 18VPP Output from a 3V Supply.
  • Integrated Boost Converter Generates up to 12V Supply.
  • No Voltage Cross Output at Shutdown Mode.

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Other Datasheets by Diodes Incorporated

Part Number Description
PAM8904E 18VPP OUTPUT PIEZO SOUNDER DRIVER
PAM8904Q AUTOMOTIVE 18VPP OUTPUT PEIZO SOUNDER DRIVER
PAM8901 25mW TRUE CAP FREE STEREO HEADPHONE AMPLIFIER
PAM8902 MONO CLASS-D AUDIO AMPLIFIER
PAM8902A MONO CLASS-D AUDIO AMPLIFIER

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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PAM8904 18VPP OUTPUT PIEZO SOUNDER DRIVER NC CP1 CN2 VO1 EN 1 EN2 DIN NC Description The DIODES™ PAM8904 is a piezo sounder driver with integrated charge pump boost converter. The PAM8904 is capable of driving a ceramic/piezo sounder with 24VPP from a 5.5V power supply. The charge pump can operate in a 1x, 2x, or 3x mode. Pin Assignments Pin 1 (Top View) NC VIN CP2 VOUT The boost converter operates at a fixed frequency of 1.0MHz and provides a 12V output with a minimum number of external components. The PAM8904 can drive up to 15nF loading. Diodes Incorporated’s unique drive technology provides a small inrush current, low EMI and high efficiency. The PAM8904 includes built-in automatic shutdown and wake up that guarantees longer battery life.