PAM8906

Document number: DS44739 Rev. 1 - 2

4 of 11

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December 2022

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PAM8906

Absolute Maximum Ratings (@TA = +25°C, unless otherwise specified.)

Symbol

Parameter

Value

Unit

VIN

Supply Voltage

-0.3 to 6.0

V

VIH

High-Level Input Voltage

-0.3 to 6.0

V

VIL

Low-Level Input Voltage

-0.3 to 6.0

V

OUTP, OUTN, VOUT High Voltage Pins

-0.3 to 25

V

TA

Operating Free-Air Temperature Range

-40 to +125

°C

TJ

Operating Junction Temperature Range

-40 to +150

°C

TSTG

Storage Temperature Range

-65 to +150

°C

Thermal Information

Parameter

Symbol

Package

Maximum

Unit

Thermal Resistance (Junction to Ambient)

JA

MSOP-10

104

°C/W

Thermal Resistance (Junction to Case)

JC

MSOP-10

16

°C/W

Electrical Characteristics (@TA = +25°C, VIN = 3.0V, CPIEZO = 33nF, fDIN = 3.2kHz, unless otherwise specified.)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VIN

Supply Voltage

—

2.1

—

5.5

V

VOUT

Boost Output Voltage

Three Options

—

10/12/18

—

V

IDD1

Operating Current 1

CPIEZO = No Load, fDIN = 3.2kHz,

VOUT = 12V

—

1.3

—

mA

IDD2

Operating Current 2 (Note 4)

CPIEZO = 33nF, fDIN = 3.2kHz,

VOUT = 12V

—

27

—

mA

ISD

Shutdown Current

VDIN = 0V

—

0.01

1

µA

fDIN

Piezo Input Signal Frequency (Note 5)

—

0.2

—

10

kHz

CLoad

Max Piezo Loading

—

—

—

150

nF

fOSC

Boost Switching Frequency

—

—

1.8

—

MHz

IOCP

Cycle-by-Cycle Over Current Protection

—

—

1

—

A

RDS(ON)

Piezo Driver On-State Resistance

High Side, I = 100mA

—

7.5

—

Ω

Low Side, I = 100mA

—

3

—

Ω

tON

VOUT Start Delay Time

From DIN Signal High to 90% VOUT

Steady State

—

770

—

µs

tOFF

Shutdown Delay Time

From DIN = H- > L, VOUT to GND

—

100

—

ms

VIH

Control Terminal Voltage H

DIN Pin

1.5

—

VIN

V

VIL

Control Terminal Voltage L

DIN Pin

0

—

0.4

V

IIH

Control Terminal Current H

DIN = VIN

—

—

10

µA

IIL

Control Terminal Current L

DIN = 0

—

0.01

1

µA

OTP

Over Temperature Threshold

—

—

+150

—

°C

—

Over Temperature Protection Hysteresis

—

—

+30

—

°C

Notes:

4. Operating Current is a function of Piezo Load Capacitance and Input Frequency. With external Schottky diode, power dissipation can be reduced by 20%.

5. For Ultrasonic applications, the input frequency can be over 100kHz, but the Piezo Sounder capacitance

≤ 10nF.