RE46C109 DataSheet
http://www.microchip.com/stellent/images/mchpsiteimages/dwnfolder.gifVoltage Regulator, Voltage Converter and Piezoelectric Horn DriverThe RE46C109 is intended for use in applications where low voltage regulation and a high voltage horn driver are required. The circuit features a voltage boost converter/regulator and driver circuit suitable for driving a piezoelectric horn. The horn enable pin activates the boost converter and horn driver circuit. Supply current is 6.5uA maximum when the boost regulator and horn driver are not in use. A 3V regulator is also provided for microprocessor voltage regulation. Low battery detection and signaling are also available. Interconnect pins are provided to allow communication in multiple unit environments. A power good pin monitors the status of the regulator output.
Parameter NameValue
Operating Voltage (Vdc)6 to 12
LED DriverFalse
Voltage Regulator3V
Low Battery DetectionTrue
InterconnectTrue
Power Good True
Brown OutTrue
Charge PumpTrue
Inductive BoostFalse
Operating Temperature Range (°C)-40C to 85C
Features
Low Quiescent Current
12V Boost Regulator
Low Horn Driver Ron
3V Regulator, Other Options Available
Low Battery Detection Interface
Power Good and Brownout Circuits
Device interconnection
Available in DIP and SOIC packages
Available in Standard Packaging or RoHS Compliant Pb Free Packaging
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