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.
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
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
V
DD
V
in
V
infd
I
in
T
A
T
STG
T
J
VALUE
18
-.3 to V
dd
+.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.
Trademarks
Information contained in this publication regarding device
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may be superseded by updates.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
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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, K
EE
L
OQ
, K
EE
L
OQ
logo, MPLAB, PIC, PICmicro,
PICSTART, rfPIC, SmartShunt and UNI/O are registered
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© 2009, Microchip Technology Incorporated, Printed in the
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Printed on recycled paper.
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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
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© 2009 Microchip Technology Inc.
DS22163A-page 4
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