R&E International
RE46C105
Piezoelectric Horn Driver with Voltage Regulator and LED Driver
Product Specification
Features
General Description
The RE46C105 is a piezoelectric horn driver with a
voltage regulator and an open drain NMOS driver
suitable for use with a light emitting diode. It is
intended for 9V battery applications which require a
low voltage logic supply. The regulator can be
operated at either 3.3V or 5V. The horn feedback
control pin is designed for use with self-oscillating
piezoelectric horn but can also be used in direct
drive applications. A low battery detection circuit is
also provided.
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Low Quiescent Current
Low Horn Driver Ron
Voltage Regulation to 3.3V or 5V
Low Battery Detection
Available in DIP and SOIC packaging
Available in Standard Packaging or RoHS
Compliant Pb Free Packaging
Pin Configuration
Applications
LBOUT
REGEN
REGOUT
REGSEL
HRNEN
HORNS
HORNB
VSS
1
14
LBSTRB
LBSET
LED
Smoke detectors
CO Detectors
Personal Security Products
Electronic Toys
VDD
LEDEN
FEED
Absolute maximum ratings
Supply Voltage V ........………………………………….......-.5V to +14V
dd
Input voltage Range V ...…………………………………..... -.3V to V +.3V, except
in DD
FEED
FEED Input Voltage Range Vinf …………………………...… -10V to +22V
Input Current I ..............…………………………………..... 10mA, except FEED
in
Operating Temperature .......………………………………….. -40 to 85°C
Continuous Output Current (HornS, HornB) .……………….. 30mA
Continuous Output Current (REGOUT) .…………………….. 55mA
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 charges.
Telephone 610.992.0727
Page 1 of 5
Facsimile 610.992.0734
E-mail: rande@randeint.com
DS-RE46C105-011507
This datasheet contains PROPRIETARY information.
RANDE [ R & E INTERNATIONAL, INC. ]
