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PDF PAM8904Q Data sheet ( Hoja de datos )
| Número de pieza | PAM8904Q | |
| Descripción | AUTOMOTIVE 18VPP OUTPUT PEIZO SOUNDER DRIVER | |
| Fabricantes | Diodes | |
| Logotipo |  |
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PAM8904Q
AUTOMOTIVE 18VPP OUTPUT PEIZO SOUNDER DRIVER
Description
The PAM8904Q is a piezo sounder driver designed for driving a
ceramic/piezo sounder or speaker with 18Vpp from a 3V power
supply. A programmable charge pump boost converter allows the
PAM8904Q VOUT to operate in 1X, 2X and 3X mode.
Pin Assignments
(Top View)
The boost converter operates at a fixed frequency of 1.0MHz and
provides a 9V output with a minimum number of external
components. PAMs unique drive technology ensures minimal inrush
current, low EMI and high efficiency.
To ensure maximum efficiency and battery life the PAM8904Q
includes an auto standby feature which puts the device in sleep mode
while there is no valid input signal. A forced shutdown is also
available to enable the IC only when required.
CPM1 1
CPM2
DIN
NC
GND
To help protect the IC and system the PAM8904Q includes
overtemperature shutdown, overcurrent and short circuit protection.
The PAM8904Q is available in a 16pin U-QFN3030 package.
The PAM8904Q is qualified to AEC-Q100 Grade 2 and is Automotive
Compliant supporting PPAPs.
U-QFN3030-16L
Features
Supply voltage Range from 2.3V to 5V
18VPP Output from a 3V Supply
Integrated Boost Converter Generates 9V Supply
Wide Input signal capability 20Hz to 300KHz
Low Current Consumption
Automatic Standby and Wake-up Control
Overtemperature Shutdown and Short-Circuit Protection
Available in Space Saving Packages 16pin QFN package with
Green Molding
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Qualified to AEC-Q100 Standards for High Reliability
AEC-Q100 Grade 2
PPAP Capable (Note 4)
Applications
Automotive Alarms
Dash Board Audio
GPS
Electric Vehicle Approach Warning
Automotive Security Device
NC
CP1
CN2
VO1
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html 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.
4. Automotive products are AEC-Q100 qualified and are PPAP capable. Refer to http://www.diodes.com/quality/product_compliance_definitions/.
PAM8904Q
Document number: DS38977 Rev. 1 - 2
1 of 11
www.diodes.com
June 2016
© Diodes Incorporated
1 page  
PAM8904Q
Performance Characteristics (@TA = +25°C, VIN = 3.0V, CPiezo = 15nF, fDIN = 4KHz, unless otherwise specified.)
3x mode
2x mode
1x mode
3x mode
2x mode
1x mode
3x mode
2x mode
1x mode
PAM8904Q
Document number: DS38977 Rev. 1 - 2
5 of 11
www.diodes.com
June 2016
© Diodes Incorporated
5 Page 
PAM8904Q
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated
website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and
hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the
final and determinative format released by Diodes Incorporated.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any
use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2016, Diodes Incorporated
www.diodes.com
PAM8904Q
Document number: DS38977 Rev. 1 - 2
11 of 11
www.diodes.com
June 2016
© Diodes Incorporated
11 Page | ||
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