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PAM8906

DIODES
Part Number PAM8906
Manufacturer DIODES
Description 36VPP OUTPUT PIEZO SOUNDER DRIVER
Published May 9, 2023
Detailed Description ADVANCED INFORMATION PAM8906 36VPP OUTPUT PIEZO SOUNDER DRIVER WITH SELF-EXCITATION MODE Description The DIODES™ PAM89...
Datasheet PDF File PAM8906 PDF File

PAM8906
PAM8906

Overview
ADVANCED INFORMATION PAM8906 36VPP OUTPUT PIEZO SOUNDER DRIVER WITH SELF-EXCITATION MODE Description The DIODES™ PAM8906 is a piezoelectric sounder driver with builtin boost converter, capable of driving a piezo sounder with up to 36VPP output.
With integrated boost converter, the PAM8906 can provide an optimized solution with higher Sound Pressure Level (SPL) for louder output sound, and lower quiescent current along with auto turn-on/off feature for extended battery runtime.
PAM8906 provides clear benefits for battery-operated piezoelectric sounder or alarm related applications.
With the integrated boost converter and unique piezo sounder driver technology, PAM8906 provides small inrush current, low EMI and yet delivers high system efficiency.
The integrated boost converter switches at a fixed frequency of 1.
8MHz and as a result, it can operate with a small 0.
47µH inductor.
Pin Assignments (Top View) VCC GND BOOT SW VOUT 10 9 8 7 6 YWX 8906- XX 1 23 45 VIN DIN FB OUTP OUTN The PAM8906 comes in three different Output Voltage (VOUT) options: 10V, 12V, and 18V.
The PAM8906 can operate with an external PWM input or operate in self-excitation mode (only 10V and 12V supported in this mode) for various piezo sounder applications.
It also features thermal shutdown protection, over-current protection, over-voltage protection and under-voltage-lockout protection to ensure safe system operation.
The PAM8906 is available in MSOP-10 package for smaller PCB footprint and higher SMT yield.
MSOP-10 Applications  Smoke / gas / water alarms, or industrial security alarms  Air humidifiers or ultrasonic related piezo driver applications  Security devices, home appliances  Haptic feedbacks Features  Supply Voltage Range from 2.
1V to 5.
5V  Intergraded Boost Converter with VOUT = 10V, 12V or 18V  Automatic Shutdown and Wake-Up Control  Support External PWM Input or Self-Excitation Mode  Low Operating Current, with Shutdown Current < 1μA  High-Speed Driver Designed with...


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