RE46C108E8F

R&E International A Subsidiary of Microchip Technology Inc. RE46C108 Piezoelectric Horn Driver and Voltage Regulator Product Specification General Description Features 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. • • • • • Applications Smoke detectors CO Detectors Personal Security Products Electronic Toys 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 Pin Configuration REGSEL 1 8 HRNEN VDD HORNS REGOUT HORNB FEED 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 Input Voltage Low Input Voltage High Output Low Voltage Output High Voltage Regulator Voltage Line Regulation Load Regulation Brown-Out Threshold Voltage *See note #1 Brown-Out Pull Down Current Regout Overvoltage Clamp *See note #2 Test Pin Test Conditions Min Limits Typ Max Vdd Operating 6.0 9.0 Vdd Hrnen=Vss; No Loads Hrnen,Resel Vin=Vdd or Vss FEED Feed = +22V FEED Feed = -10V -100 20 -50 Horns or Hornb Regout Regout Regout Vdd Regout Regout uA 100 nA 50 uA uA 1.0 2.3 Iout=16mA; Vdd=9V Vdd=7.2V V V 0.3 8.5 6.3 4.75 3.10 V 4 -15 Hrnen, Regsel Hrnen, Regsel Horns or Hornb 13.8 Units Iout=-16mA; Vdd=9V Vdd=7.2V Iout