PAM8904E

PAM8904E 18VPP OUTPUT PIEZO SOUNDER DRIVER Description The DIODES™ PAM8904E is a piezo sounder driver with integrated charge pump boost converter. The PAM8904E is capable of driving a ceramic/piezo sounder with 27VPP from a 4.5V power supply. The charge pump can operate in either 1x, 2x or 3x mode. The boost converter operates at a fixed frequency of 100kHz and provides a 3X VIN output with a minimum number of external components. The PAM8904E can drive up to 47nF loading. Diodes Incorporated’s unique drive technology provides a small inrush current, low EMI and high efficiency. The PAM8904E includes built-in automatic shutdown and wake up that guarantees longer battery life. The PAM8904E features thermal shutdown, over current protection, over voltage protection and under voltage lock-out. The PAM8904E is available in U-QFN3030-16 (Type B), U-QFN303012 (Type A), W-QFN2020-12 (Type US) and U-QFN2020-12 (Type UX) packages. Features  Supply Voltage Range from 1.5V to 5.5V  18VPP Output from a 3V Supply  Integrated Boost Converter Generates up to 13.5V Supply  Input Signal 20Hz to 300kHz  No Voltage Cross Output in Shutdown Mode  Low Current Consumption  Automatic Standby and Wake-up Control  Available in Space Saving U-QFN3030-16 (Type B), U- QFN3030-12 (Type A), W-QFN2020-12 (Type US) and UQFN2020-12 (Type UX) Packages  Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)  Halogen and Antimony Free. “Green” Device (Note 3)  For automotive applications requiring s...