PAM8906

Document number: DS44739 Rev. 1 - 2

3 of 11

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December 2022

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PAM8906

Pin Descriptions

Pin Number

Pin Name

I/O/P

Function

1

VCC

O

Internal LDO Output

2

GND

P

Ground

3

BOOT

P

Bootstrap Capacitor Connection

4

SW

I/O

Switch Pin of the Boost Converter. Connect to External Inductor

5

VOUT

O

Boost Output

6

OUTN

O

Negative Sounder Output

7

OUTP

O

Positive Sounder Output

8

FB

I

Feedback Pin for 3 Terminal Sounder. Connect to VOUT if Using 2 Terminal Sounder

9

DIN

I

PWM Signal Input

10

VIN

I

Battery Supply Input

Functional Block Diagram

VIN

Boost Converter

BOOT

SW

VCC

DIN

GND

VOUT

FB

OUTP

OUTN

LDO

VOUT

REF VREF

OSC

Level

Shift

Start/Stop

Detect

OTP

UVLO

Short Protection