R&E International A Subsidiary of Microchip Technology Inc. RE46C101 Piezoelectric Horn Driver and LED Driver Circuit Product Specification General Description Features 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. • • • • • Applications Pin Configuration Smoke detectors CO Detectors Personal Security Products Electronic Toys Low Quiescent Current (<100na) Low Driver Ron - 20Ω typical at 9V Wide Operating Voltage Range 8 Pin DIP and SO Packages Available in Standard Packaging or RoHS Compliant Pb Free Packaging LED 1 8 HRNEN VDD 2 7 HORNS LEDEN 3 6 HORNB FEED 4 5 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. © 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 = 25°C, VDD=9V, Typical Application (unless otherwise noted) Symbol Test Pin Supply Voltage VDD 2 Operating Supply Current HRNEN,LEDEN and FEED=0V Parameter IDD1 2 Input Voltage Low VIL1 3,8 Input Voltage High VIH1 3,8 Input Leakage Low Input Leakage High Output Voltage Low Output Voltage High Test Conditions Limits Typ Max Min 6 9 16 V 100 nA 1 2.3 IIL1 3,8 ILFD 4 IIH1 3.8 IHFD 4 VOL1 6,7 Iol=16mA VOL2 6,7 Iol=16mA, VDD=7.2V VOL3 1 Iol=10mA, VDD=7.2V VOh1 6,7 Ioh=-16mA 8.5 VOh2 6,7 Ioh=-16mA, VDD=7.2V 6.3 Units V V Vin=VSS -100 nA FEED=-10V -50 uA Vin=VDD 100 nA FEED=22V 50 uA .5 V .9 V 1 V .3 .5 8.7 V V Functional Block Diagram HRNEN 8 VDD 2 VSS 5 LEDEN 4 FEED 7 HORNS 6 HORNB 1 LED 3 © 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 © 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. 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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. © 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® MCUs and dsPIC® DSCs, KEELOQ® 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. © 2009 Microchip Technology Inc. DS22163A-page 4