PAM8902H Datasheet, PDF (1/12 Pages) Diodes Incorporated – 30 VPP MONO CLASS-D AUDIO AMPLIFIER FOR PIEZO/CERAMIC SPEAKERS

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Diodes Incorporated
PAM8902H
30 V_PP MONO CLASS-D AUDIO AMPLIFIER FOR PIEZO/CERAMIC SPEAKERS
Description
The PAM8902H is a mono, Class-D audio amplifier with integrated
boost convertor designed for piezo and ceramic speakers.The
PAM8902H is capable of driving a ceramic/ piezo speaker with
30Vpp(10.6Vrms) from a 3.6V power supply.The PAM8902H's Boost
converter operates at a fixed frequency of 1.5MHz , and provides a
17.5V supply with a minimum number of external components.
PAM8902H features an integrated audio low pass filter that rejects
high frequency noise thus improving audio fidelity. And three gain
modes of 21dB, 26dB and 32.5dB easy for using.PAM8902H also
provides thermal ,short, under and over voltage protection.
The PAM8902H is available in a 16-ball 1.95mm x 1.95mm CSP
package and 16-pin QFN4x4 package.
Pin Assignments
Features
• Supply Voltage Range From 2.5V to 5.5V
• 30 V_PP Output Load Voltage From a 2.5V Supply
• Integrated Boost Converter Generates 17.5V Supply
• Programmable Soft-Start
• Small Boost Converter Inductor
• Selectable Gain of 21dB, 26dB, and 32.5dB
• Selectable Boost Output Voltage of 8V, 12V, and 17.5V
• Low Shutdown Current: <1µA
• Build in Thermal , OCP ,OVP,Short Protection
• Available in Space Saving Packages:
ƒ 16-ball 1.95mmx1.95mm CSP Package
ƒ 16-pin QFN4x4 Package
Applications
ƒ Wireless or Cellular Handsets
ƒ Portable DVD Player
ƒ Personal Digital Assistants (PDAs )
ƒ Electronic Dictionaries
ƒ Digital Still Cameras
PAM8902H
Document number: DSxxxxx Rev. 1 - 0
1 of 12
www.diodes.com
December 2012
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