Datasheet PAM8904 (Diodes)

ОписаниеThe PAM8904 is a piezo sounder driver with integrated a charge pump boost converter
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PAM8904. 18VPP OUTPUT PIEZO SOUNDER DRIVER. Description. Pin Assignments. (Top View). U-QFN3030-16 (Type B). Features

Datasheet PAM8904 Diodes

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PAM8904 18VPP OUTPUT PIEZO SOUNDER DRIVER Description Pin Assignments
The PAM8904 is a piezo sounder driver with integrated charge pump
(Top View)
boost converter. The PAM8904 is capable of driving a ceramic/piezo sounder with 24VPP from a 5.5V power supply. The charge pump can NC VIN CP2 VOUT Pin 1 operate in either a 1x, 2x or 3x mode. E N N 1 C The boost converter operates at a fixed frequency of 1.0MHz and E C N provides a 12V output with a minimum number of external P 2 1 D C components. The PAM8904 can drive up to 15nF loading. Diodes IN N 2 Incorporated’s unique drive technology provides a small inrush NC V O 1 current, low EMI and high efficiency. PAM8904 includes built-in automatic shutdown and wake up that CN1 GND VO2 NC guarantees longer battery life. PAM8904 features thermal shutdown,
U-QFN3030-16 (Type B)
over current protection, over voltage protection and under voltage
(Top View)

VIN CP2 VOUT The PAM8904 is available in a 16-pin U-QFN3030-16 (Type B)

Pin 1 package, or 12-pin U-QFN3030-12 (Type A) package.

N P 1 1

E C Supply Voltage Range from 2.3V to 5.5V

N N 2 2

18V PP Output from a 3V Supply

D IN V O Integrated Boost Converter Generates up to 12V Supply

1 Input Signal 20Hz to 300kHz

No Voltage Cross Output at Shutdown Mode CN1 GND VO2 Low Current Consumption
U-QFN3030-12 (Type A)
Automatic Standby and Wake-up Control Available in Space Saving Packages 16 Pin U-QFN3030-16
(Type B) or 12 Pin U-QFN3030-12 (Type A) Package Health Care Systems
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Alarm Clocks
Halogen and Antimony Free. “Green” Device (Note 3)
Security Devices
An Automotive-Compliant Part is Available Under Separate
Home Appliances
Datasheet (PAM8904Q)
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See 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.

PAM8904 1 of 9 May 2017 Document number: DS37246 Rev. 2 - 2
© Diodes Incorporated
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