PAM8906
36VPP OUTPUT PIEZO SOUNDER DRIVER WITH SELF-EXCITATION MODE
Description
Pin Assignments
The DIODES™ PAM8906 is a piezoelectric sounder driver with built-
in 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.
(Top View)
VCC
GND
VIN
DIN
FB
BOOT
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.
SW
OUTP
OUTN
VOUT
The PAM8906 comes in three different Output Voltage (VOUT
options: 10V, 12V, and 18V.
)
MSOP-10
Applications
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.
Smoke / gas / water alarms, or industrial security alarms
Air humidifiers or ultrasonic related piezo driver applications
Security devices, home appliances
Haptic feedbacks
The PAM8906 is available in MSOP-10 package for smaller PCB
footprint and higher SMT yield.
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 Very Short Turn-On/Turn-Off
High-Impendence Output in Shutdown Mode
Available in Space-Saving MSOP-10 Packages
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
For automotive applications requiring specific change
control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP
capable, and manufactured in IATF 16949 certified
facilities), please contact us or your local Diodes
representative.
https://www.diodes.com/quality/product-definitions/
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.
2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and
Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
1 of 11
www.diodes.com
December 2022
© 2022 Copyright Diodes Incorporated. All Rights Reserved.
PAM8906
Document number: DS44739 Rev. 1 - 2
5秒后页面跳转
STM32H743技术深度剖析与应用案例探索
LM321中文资料解析：引脚功能介绍、技术特点、技术特性分析
74HC14芯片资料介绍：性能特性分析、引脚介绍
LM1875芯片手册：功放参数分析、引脚说明、电路设计要点
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
数据手册
如果您发现信息不准确，
