Datasheet Diodes PAM8907 — 数据表

PAM8907
31VPP OUTPUT PIEZO SOUNDER DRIVER WITH BOOST CONVERTER Description Pin Assignments ADVANCED INFORMATION The PAM8907 is a piezoelectric horn driver with built-in boost
converter, capable of driving a ceramic/piezo sounder with up to
31VPP output. With integrated boost converter, the PAM8907 can U-QFN2020-10 VCC
1 provide an optimized solution with higher Sound Pressure Level
(SPL) for louder output sound, lower quiescent current for longer
standby time, and auto turn-on/off feature for extended operating
lifetime. The PAM8907 provides clear benefits for battery-operated
tracker, piezoelectric horn or alarm related applications.
The PAM8907 integrates a boost converter that operates at a typical
frequency of 1.8MHz. With integrated boost converter and unique
piezo sounder driver technology, the PAM8907 provides small inrush
current, low EMI and yet highly efficient system performance.
PAM8907 Boost converter output can be set to either 11V or 15.6V
with minimum external components for various application usages.
The PAM8907 has built-in automatic shutdown and wake-up
functions for longer operating lifetime requirement. It also features
thermal shutdown protection, over-current protection, over-voltage
protection and under-voltage-lockout protection to assure safe
system operation. 2 GND 10 VIN BOOT 3 9 VSET SW 4 8 DIN 7 OUTP VOUT 5
6 OUTN
(Top View) Applications Bluetooth or Wireless Location Tracker Air Humidifier or Ultrasonic Related Piezo Driver Application
Security Devices, Home Appliances …