RE46C105 DataSheet
http://www.microchip.com/stellent/images/mchpsiteimages/dwnfolder.gifPiezoelectric Horn Driver with Voltage Regulator and LED DriverThe 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.
Parameter NameValue
Operating Voltage (Vdc)6 to 12
LED DriverTrue
Voltage Regulator3.3V or 5V
Low Battery DetectionTrue
InterconnectFalse
Power Good False
Brown OutTrue
Charge PumpFalse
Inductive BoostFalse
Operating Temperature Range (°C)-40C to 85C
Features
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
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