RE46C104E14F Microchip

R&E International A Subsidiary of Microchip Technology Inc. RE46C104 Piezoelectric Horn Driver and Voltage Converter Product Specification Features General Description The RE46C104 is a piezoelectric horn driver with Low Quiescent Current voltage converter to provide maximum audibility in Low Driver Ron low voltage applications. The feedback control pin is Wide Operating Voltage Range designed for use with self-oscillating piezoelectric Available in Standard Packaging or RoHS horn but can also be used in direct drive Compliant Pb Free Packaging applications. The built-in charge pump voltage converter provides increased supply voltage for the horn drivers allowing outputs to swing from Vss to 2 x Vdd. A charge pump enable pin is provided to Pin Configuration minimize supply current when not in use. Applications N/C N/C 1 14 FEED Vdd Smoke detectors CO Detectors CAP- CPMPEN Personal Security Products Vss HORNS Electronic Toys HORNB CAP+ HRNEN VPOS N/C N/C Absolute maximum ratings Supply Voltage V ...............-.5V to +9.0V dd Input voltage Range V ........ -.3V to V +.3V, except FEED in DD FEED Input Voltage Range Vinf ... -10V to +22V Input Current I ................... 10mA, except FEED in Operating Temperature ......... 0 to 50 C Continuous Output Current (HornS, HornB, or Vpos).... 30mA 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. DS22164A-page 1 RE46C104 Piezoelectric Horn Driver and Voltage Converter R&E International Product Specification A Subsidiary of Microchip Technology Inc. Electrical Characteristics at T = 25 C, V = 5V, V = 0V (unless otherwise noted). A DD ss Test Limits Parameter Pin Test Conditions Min Typ Max Units Supply Voltage Vdd Operating 4.0 5.0 8.0 V Standby Supply Vdd Hrnen, Cpmpen = Vss 100 500 nA Current Feed = Vss Vdd = 5V Vdd Hrnen, Cpmpen = Vss 500 nA Feed = Vss Vdd = 8V Supply Current Hrnen = Vss 200 500 uA Vdd Cpmpen = Vdd No Loads See note 1 Hrnen & Input Leakage Vin = Vdd or Vss -100 100 nA Cpmpen FEED Feed = +22V 20 50 uA Cpmpen = Vdd FEED Feed = -10V -50 -15 uA Cpmpen = Vdd Hrnen & Input Voltage Low 1.0 V Cpmpen Hrnen & Input Voltage High 2.3 V Cpmpen Horns or Output Low Voltage Iout = 16mA 0.3 0.5 V Hornb Cpmpen = Vdd Horns or Iout = -16mA 8.5 8.7 V Output High Voltage Hornb Cpmpen = Vdd Vpos Iout = -16mA 8.9 V Vpos Output Voltage Cpmpen = Vdd Hrnen = Vss Vpos 16 kHz Charge Pump Oscillator Freq Vpos Iout = -16mA 85 % Charge Pump Power C1=C2=10uF Efficiency Vpos No Loads 95 99 % Charge Pump C1=C2=10uF Voltage Conversion Efficiency 2009 Microchip Technology Inc. DS22164A-page 2