R&E International A Subsidiary of Microchip Technology Inc. RE46C109 Voltage Regulator, Voltage Converter and Piezoelectric Horn Driver Product Specification General Description Features The RE46C109 is intended for use in applications Low Quiescent Current where low voltage regulation and a high voltage 12V Boost Regulator horn driver are required. The circuit features a Low Horn Driver Ron voltage boost converter/regulator and driver circuit 3V Regulator, Other Options Available suitable for driving a piezoelectric horn. The horn Low Battery Detection Interface enable pin activates the boost converter and horn Power Good and Brownout Circuits driver circuit. Supply current is 6.5uA maximum Device interconnection when the boost regulator and horn driver are not in Available in DIP and SOIC packages use. A 3V regulator is also provided for Available in Standard Packaging or RoHS microprocessor voltage regulation. Low battery Compliant Pb Free Packaging detection and signaling are also available. Interconnect pins are provided to allow Pin Configuration communication in multiple unit environments. A power good pin monitors the status of the regulator output. 1 VPOS 16 VDD Applications IO1 CAP+ IODIR CAP- Smoke detectors CO Detectors IO2 VREG Personal Security Products LBST LBAT Electronic Games Hand Held Instruments PG HORNB HRNEN HORNS FEED VSS ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL VALUE UNITS Supply Voltage V 12 V DD Input Voltage Range Except FEED, IO1, IO2 V -.3 to V+.3 V in dd FEED Input Voltage Range V -10 to +22 V infd IO2 Input Voltage Range V -.3 to VREG+.3 V io2 IO1 (as input) Voltage Range V -.3 to V + 6 V io1 dd Input Current except FEED I 10 mA in Operating Temperature T -40 to 85 A C Continuous Operating Current (Horn or VPOS) I 50 mA con Storage Temperature T -55 to 125 C STG Maximum Junction Temperature T 125 C J 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. DS22168A-page 1 RE46C109 Voltage Regulator, Voltage Converter and R&E International Piezoelectric Horn Driver A Subsidiary of Microchip Technology Inc. Product Specification Electrical Characteristics at T =27 C, Vdd=9V, Vss=0V (unless otherwise noted). A Limits Parameter Symbol Conditions MIN TYP MAX UNITS Operating Supply Voltage Vdd 6 12 V Quiescent Supply HRNEN, LBST, IODIR, FEED, Idd1 4.7 6.5 uA Current REGSEL=VSS, No Loads LBST, IODIR, FEED =VSS Supply Current Idd2 350 uA HRNEN=VDD, No Loads All Inputs except FEED, Vin=VDD Iin -100 100 nA or VSS Input Leakage FEED=+22V Iihf 20 50 uA FEED=-10V Iilf -50 -15 uA Output Leakage Iout PG = 5.0v 1.0 uA Input Voltage Low Vil All Inputs except FEED 1 V Input Voltage Vih All Inputs Except FEED 2.3 V High Vol1 HORNB or HORNS Iout=16mA .3 .5 V IO2, Iout=100uA Output Low Voltage Vol2 .3 .5 V IODIR=Vil , IO1=Vil Vol3 PG, Iout=5.0mA .5 V Voh1 HORNB or HORNS Iout=-16mA Vpos-.5 Vpos-.3 V Output High IO2, Iout=-100uA Voltage Voh2 Vreg -.5 Vreg -.3 V IODIR=Vil , IO1=Vih VPOS RMS Output VPOS Iout=-16mA V 10.7 11.8 12.7 V vpos Voltage HRNEN=VDD Charge pump CPf 150 kHz Oscillator Frequncy Charge pump VPOS Iout=-16mA, C1=1uF CPpe 85 % Power Efficiency C2=10uF Vdd=6.5v Charge pump VPOS No Loads, C1=1uF CPve 95 99 % Voltage Efficiency C2=10uF Vdd=6.0v Low Battery Lbv LBAT LBST=Vdd .17 *Vdd .2*Vdd .23*Vdd V Interface VREG Voltage Vreg VREG Iout<50mA HRNEN=VSS 2.85 3 3.15 V VREG Line VREG Vdd=6V to 12V VREG Vregln 50 mV Regulation Iout=10mA HRNEN = VSS Note 3 VREG Load VREG Iout=0 to -50mA Vregld 90 mV Regulation HRNEN=VSS Note 3 Brownout Vbvt Falling Edge of VDD Note 1 4.5 5.0 5.5 V Threshold Brownout Pull Ibt Vdd=4.5V, Vreg=2v 15 25 mA Down Current 2009 Microchip Technology Inc. DS22168A-page 2