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 N-
channel driver suitable for use with a light emitting
diode.
Applications
Smoke detectors
© 2009 Microchip Technology Inc.
DS22163A-page 1
CO Detectors
Personal Security Products
Electronic Toys
Features
• 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
Pin Configuration
8
1
HRNEN
LED
7
2
HORNS
VDD
6
5
3
HORNB
LEDEN
VSS
4
FEED
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL
VALUE
UNITS
Supply Voltage
V
DD
18 V
Input Voltage Range Except FEED
V
in
-.3 to V
dd
+.3 V
FEED Input Voltage Range
V
infd
-10 to +22
V
Input Current except FEED
I
in
10
mA
Operating Temperature
T
A
0 to 50
°C
Storage Temperature
T
STG
-55 to 125
°C
Maximum Junction Temperature
T
J
150
°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.
RE46C101
Piezoelectric Horn Driver and LED Driver Circuit R&E International
Product Specification
A Subsidiary of Microchip Technology
Inc.
DC Electrical Characteristics at TA = 25°C, VDD=9V, Typical Application (unless otherwise noted)
Limits
Parameter Symbol
Test
Pin Test
Conditions
Min Typ Max
Units
Supply Voltage
V
DD
2 Operating
6 9 16 V
Supply Current
I
DD1
2
HRNEN,LEDEN and FEED=0V
100
nA
Input Voltage Low
V
IL1
3,8
1 V
Input Voltage High
V
IH1
3,8
2.3
V
I
IL1
3,8 Vin=VSS
-100 nA
Input Leakage Low
I
LFD
4 FEED=-10V
-50 uA
I
IH1
3.8 Vin=VDD
100 nA
Input Leakage High
I
HFD
4 FEED=22V
50 uA
V
OL1
6,7 Iol=16mA
.3 .5 V
V
OL2
6,7 Iol=16mA,
VDD=7.2V
.9 V
Output Voltage Low
V
OL3
1
Iol=10mA,
VDD=7.2V
.5
1
V
V
Oh1
6,7 Ioh=-16mA
8.5 8.7
V
Output Voltage High
V
Oh2
6,7
Ioh=-16mA,
VDD=7.2V 6.3
V
Functional Block Diagram
© 2009 Microchip Technology Inc.
DS22163A-page 2
4
7
6
1
8
3
5
FEED
HORNS
HRNEN
VDD
2
HORNB
VSS
LED
LEDEN
RE46C101
Piezoelectric Horn Driver and LED Driver Circuit R&E International
Product Specification
A Subsidiary of Microchip Technology
Inc.
Typical Application
© 2009 Microchip Technology Inc.
DS22163A-page 3
RE46C101
Piezoelectric Horn Driver and LED Driver Circuit R&E International
Product Specification
A Subsidiary of Microchip Technology
Inc.
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.
Trademarks
The Microchip name and logo, the Microchip logo, Accuron,
dsPIC, K
EE
L
OQ
, K
EE
L
OQ
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,
PICDEM.net, PICtail, PIC
32
logo, PowerCal, PowerInfo,
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, K
EE
L
OQ
®
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
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 N-
channel driver suitable for use with a light emitting
diode.
Applications
Smoke detectors
© 2009 Microchip Technology Inc.
DS22163A-page 1
CO Detectors
Personal Security Products
Electronic Toys
Features
• 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
Pin Configuration
8
1
HRNEN
LED
7
2
HORNS
VDD
6
5
3
HORNB
LEDEN
VSS
4
FEED
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL
VALUE
UNITS
Supply Voltage
V
DD
18 V
Input Voltage Range Except FEED
V
in
-.3 to V
dd
+.3 V
FEED Input Voltage Range
V
infd
-10 to +22
V
Input Current except FEED
I
in
10
mA
Operating Temperature
T
A
0 to 50
°C
Storage Temperature
T
STG
-55 to 125
°C
Maximum Junction Temperature
T
J
150
°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.
RE46C101
Piezoelectric Horn Driver and LED Driver Circuit R&E International
Product Specification
A Subsidiary of Microchip Technology
Inc.
DC Electrical Characteristics at TA = 25°C, VDD=9V, Typical Application (unless otherwise noted)
Limits
Parameter Symbol
Test
Pin Test
Conditions
Min Typ Max
Units
Supply Voltage
V
DD
2 Operating
6 9 16 V
Supply Current
I
DD1
2
HRNEN,LEDEN and FEED=0V
100
nA
Input Voltage Low
V
IL1
3,8
1 V
Input Voltage High
V
IH1
3,8
2.3
V
I
IL1
3,8 Vin=VSS
-100 nA
Input Leakage Low
I
LFD
4 FEED=-10V
-50 uA
I
IH1
3.8 Vin=VDD
100 nA
Input Leakage High
I
HFD
4 FEED=22V
50 uA
V
OL1
6,7 Iol=16mA
.3 .5 V
V
OL2
6,7 Iol=16mA,
VDD=7.2V
.9 V
Output Voltage Low
V
OL3
1
Iol=10mA,
VDD=7.2V
.5
1
V
V
Oh1
6,7 Ioh=-16mA
8.5 8.7
V
Output Voltage High
V
Oh2
6,7
Ioh=-16mA,
VDD=7.2V 6.3
V
Functional Block Diagram
© 2009 Microchip Technology Inc.
DS22163A-page 2
4
7
6
1
8
3
5
FEED
HORNS
HRNEN
VDD
2
HORNB
VSS
LED
LEDEN
RE46C101
Piezoelectric Horn Driver and LED Driver Circuit R&E International
Product Specification
A Subsidiary of Microchip Technology
Inc.
Typical Application
© 2009 Microchip Technology Inc.
DS22163A-page 3
RE46C101
Piezoelectric Horn Driver and LED Driver Circuit R&E International
Product Specification
A Subsidiary of Microchip Technology
Inc.
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.
Trademarks
The Microchip name and logo, the Microchip logo, Accuron,
dsPIC, K
EE
L
OQ
, K
EE
L
OQ
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,
PICDEM.net, PICtail, PIC
32
logo, PowerCal, PowerInfo,
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, K
EE
L
OQ
®
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