18VPP OUTPUT PEIZO SOUNDER DRIVER
PAM8904
18VPP OUTPUT PIEZO SOUNDER DRIVER
NC CP1 CN2 VO1 EN 1 EN2 DIN NC
Description
The DIODES™ PAM8904 is a piezo so...
Description
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. The PAM8904 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 Low Current Consumption Automatic Standby and Wake-Up Control Available in Space-Saving Packages:
16-Pin U-QFN3030-16 (Type B) 12-Pin U-QFN3030-12 (Type A) Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and ...
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