RE46C108

R&E International A Subsidiary of Microchip Technology Inc. RE46C108 Piezoelectric Horn Driver and Voltage Regulator Product Specification General Description The RE46C108 is a piezoelectric horn driver with a voltage regulator that can operate at 3.3V or 5V. It is intended for applications requiring a 9V horn driver with a low voltage logic supply. The horn feedback control pin is designed for use with selfoscillating piezoelectric horn but can also be used in direct drive applications. Features • • • • • Low Quiescent Current Low Horn Driver Ron Voltage Regulation to 3.3V or 5V Available in DIP and SOIC packaging Available in Standard Packaging or RoHS Compliant Pb Free Packaging Applications Smoke detectors CO Detectors Personal Security Products Electronic Toys Pin Configuration REGSEL VDD REGOUT FEED 1 8 HRNEN HORNS HORNB VSS Absolute maximum ratings Supply Voltage Vdd ........………………………………….......-.5V to +14V Input voltage Range Vin ...…………………………………..... -.3V to VDD+.3V, except FEED FEED Input Voltage Range Vinf …………………………...… -10V to +22V Input Current Iin ..............…………………………………..... 10mA, except FEED 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 © 2009 Microchip Technology Inc. DS22165A-page 1 RE46C108 Piezoelectric Horn Driver and Voltage Regulator Product Specification R&E International A Subsidiary of Microchip Technology Inc. Electrical Characteristics at TA = 25°C, VDD = 9V, Vss = 0V (unless otherwise noted). Parameter Supply Voltage Standby Supply Current Input Leakage Test Pin Vdd Vdd Hrnen,Resel FEED FEED Test Conditions Operating Hrnen=Vss; No Loads Vin=Vdd or Vss Feed = +22V Feed = -10V Min 6.0 Limits Typ Max 9.0 13.8 4 Units V uA nA uA uA -100 20 -50 -15 100 50 Input Voltage Low Input Voltage High Output Low Voltage Output High Voltage Regulator Voltage Hrnen, Regsel Hrnen, Regsel Horns or Hornb Horns or Hornb Regout Regout Regout Vdd Regout Regout 1.0 2.3 Iout=16mA; Vdd=9V Vdd=7.2V Iout=-16mA; Vdd=9V Vdd=7.2V Iout