Key Features

Applications

Available in Space Saving Packages:

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General Description

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Supply Voltage Range From 2.5 V to 5.5 V

16-ball 1.95mmx1.95mm CSP package

16-pin QFN4x4 package

16-pin QFN4x4

package.

30 Vpp Output Load Voltage From a 2.5 V

Supply

Integrated Boost Converter Generates 17.5V

Supply

Programmable softstart

Small Boost Converter Inductor

Selectable Gain of 18 dB, 22 dB, and 26 dB

Selectable Boost output voltage of 8V, 12V,

and 17.5V

Low Shutdown Current: <1uA

Build in Thermal , OCP ,OVP,Short protection

Wireless or Cellular Handsets

Por t able DVD Player

Personal Digital Assistants (PDAs )

Electronic Dictionaries

Digital Still Cameras

The PAM8902 is a mono, Class-D audio amplifier

with integrated boost convertor designed for piezo

and ceramic speakers.The PAM8902 is capable of

d r i v i n g

a

c e r a m i c / p i e z o

s p e a k e r

w i t h

30Vpp(10.6Vrms) from a 3.6V power supply.The

PAM8902's Boost converter operates at a fixed

frequency of 1.5MHz , and provides a 17.5V supply

with a minimum number of external components.

PAM8902 features an integrated audio low pass

f ilt e r th a t re je cts h ig h f re q ue n cy n o ise t h us

improving audio fidelity. And three gain modes of

18dB, 22dB and 26dB easy for using.PAM8902 also

provides thermal ,short, under and over voltage

protection.

T h e

P A M 8 9 0 2

i s

a v a i l a b l e

i n

a

1 6 - b a l l

1.95mmx1.95mm CSP package and

Typical Application Circuit

PAM8902

30-Vpp Mono Class-D Audio Amplifier for Piezo/Ceramic Speakers

1

,

Power Analog Microelectronics Inc

www.poweranalog.com

01/2012 Rev1.4

OUT-

OUT+

AVDD

0.1 F

μ

VIN

GND

INP

PAM8902

INN

0.1 F

μ

1 F

μ

VCM

PGN D2

Battery

L1

4.7 H

μ

C1

10 F

μ

C2

10 F

μ

SW

PGN D1

PVC C

COM P

ENA

GSET

VSET

10

Ω

22uH

VOU T

22nF 56k

*Option(Refer to Application Info rmation)