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R&E International
A Subsidiary of Microchip Technology Inc.
RE46C101
Piezoelectric Horn Driver and LED Driver Circuit Product Specification
General Description
This product is intended for applications using a self oscillating piezoelectric horn although it can be used in direct drive applications. Feedback control and a driver circuit are provided as well as a horn enable function. The design also provides an open drain Nchannel driver suitable for use with a light emitting diode.
Features
* * * * * Low Quiescent Current (<100na) Low Driver Ron - 20 typical at 9V Wide Operating Voltage Range 8 Pin DIP and SO Packages
Available in Standard Packaging or RoHS Compliant Pb Free Packaging
Applications
Smoke detectors CO Detectors Personal Security Products Electronic Toys
Pin Configuration
LED VDD LEDEN FEED
1 2 3 4
8 7 6 5
HRNEN HORNS HORNB VSS
ABSOLUTE MAXIMUM RATINGS
PARAMETER Supply Voltage Input Voltage Range Except FEED FEED Input Voltage Range Input Current except FEED Operating Temperature Storage Temperature Maximum Junction Temperature SYMBOL VDD Vin Vinfd Iin TA TSTG TJ VALUE 18 -.3 to Vdd +.3 -10 to +22 10 0 to 50 -55 to 125 150 UNITS V V V mA C C C
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only and operation at these conditions for extended periods may affect device reliability. This product utilizes CMOS technology with static protection; however proper ESD prevention procedures should be used when handling this product. Damage can occur when exposed to extremely high static electrical charge.
(c) 2009 Microchip Technology Inc.
DS22163A-page 1
RE46C101
Piezoelectric Horn Driver and LED Driver Circuit Product Specification R&E International
A Subsidiary of Microchip Technology Inc.
DC Electrical Characteristics at TA = 25C, VDD=9V, Typical Application (unless otherwise noted)
Parameter
Supply Voltage Supply Current Input Voltage Low Input Voltage High Input Leakage Low Input Leakage High Output Voltage Low
Symbol
VDD IDD1 VIL1 VIH1 IIL1 ILFD IIH1 IHFD VOL1 VOL2 VOL3
Test Pin
2 2 3,8 3,8 3,8 4 3.8 4 6,7 6,7 1 6,7 6,7
Test Conditions
Operating HRNEN,LEDEN and FEED=0V
Min
6
Limits Typ Max
9 16 100 1
Units
V nA V V nA uA nA uA V V V V V
2.3 Vin=VSS FEED=-10V Vin=VDD FEED=22V Iol=16mA Iol=16mA, VDD=7.2V Iol=10mA, VDD=7.2V Ioh=-16mA Ioh=-16mA, VDD=7.2V 8.5 6.3 .5 8.7 .3 -100 -50 100 50 .5 .9 1
Output Voltage High
VOh1 VOh2
Functional Block Diagram
4 FEED
7 HRNEN 8
HORNS
VDD
2 6 HORNB
VSS
5 1 LED
LEDEN
3
(c) 2009 Microchip Technology Inc.
DS22163A-page 2
RE46C101
Piezoelectric Horn Driver and LED Driver Circuit Product Specification R&E International
A Subsidiary of Microchip Technology Inc.
Typical Application
(c) 2009 Microchip Technology Inc.
DS22163A-page 3
RE46C101
Piezoelectric Horn Driver and LED Driver Circuit Product Specification R&E International
A Subsidiary of Microchip Technology Inc.
Trademarks Information contained in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip devices in life support and/or safety applications is entirely at the buyer's risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights. The Microchip name and logo, the Microchip logo, Accuron, dsPIC, KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART, rfPIC, SmartShunt and UNI/O are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. FilterLab, Hampshire, Linear Active Thermistor, MXDEV, MXLAB, SEEVAL, SmartSensor and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A. Analog-for-the-Digital Age, Application Maestro, CodeGuard, dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN, ECONOMONITOR, FanSense, In-Circuit Serial Programming, ICSP, ICEPIC, Mindi, MiWi, MPASM, MPLAB Certified logo, MPLIB, MPLINK, mTouch, nanoWatt XLP, PICkit, PICDEM, 32 logo, PowerCal, PowerInfo, PICDEM.net, PICtail, PIC PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total Endurance, TSHARC, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. (c) 2009, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper.
Microchip received ISO/TS-16949:2002 certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona; Gresham, Oregon and design centers in California and India. The Company's quality system processes and procedures are for its PIC(R) MCUs and dsPIC(R) DSCs, KEELOQ(R) code hopping devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip's quality system for the design and manufacture of development systems is ISO 9001:2000 certified.
(c) 2009 Microchip Technology Inc.
DS22163A-page 4

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