The PAM8904 is a piezo sounder driver with integrated a charge pump boost converter
The PAM8904 is a piezo sounder driver with integrated a charge pump boost converter.
The PAM8904 is capable for driving a ceramic/piezo sounder with 18Vpp from a 3V power supply. The charge pump can operate in either of a 1X, 2X and 3X mode. The boost converter operates at a fixed frequency of 1.0MHz and provides a 9V output with a minimum number of external components. The PAM8904 can drive up to 15nF loading. PAM unique drive technology provides small inrush current, low EMI and high efficiency. PAM8904 built-in automatic shutdown and wake up that guarantees longer battery life. PAM8904 features thermal shutdown, over current protection, over voltage protection and under voltage lock-out. The PAM8904 is available in a 16pin U-QFN3030 package.
|Parameters / Models||PAM8904JER||PAM8904JPR|
|Automotive Compliant PPAP||PAM8904Q||PAM8904Q|
|Class-D or AB||D||D|
|IQ||1 mA||1 mA|
|Maximum VDD||5.5 V||5.5 V|
|Minimum VDD||2.3 V||2.3 V|
|Mono or Stereo||Mono||Mono|
|Qualified to AECQ10x||Yes||Yes|
|Special Feature||Boost Converter Built-in||Boost Converter Built-in|
|Volume/ Gain||3- Step||3- Step|