R&E International
A Subsidiary of Microchip Technology Inc. RE46C105
Piezoelectric Horn Driver with Voltage Regulator and LED Driver
Product Specification General Description Features 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. Applications
Smoke detectors
CO Detectors
Personal Security Products
Electronic Toys 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 …