RE46C108S8F Microchip

R&E International A Subsidiary of Microchip Technology Inc. RE46C108 Piezoelectric Horn Driver and Voltage Regulator Product Specification Features General Description The RE46C108 is a piezoelectric horn driver with a Low Quiescent Current voltage regulator that can operate at 3.3V or 5V. It Low Horn Driver Ron is intended for applications requiring a 9V horn Voltage Regulation to 3.3V or 5V driver with a low voltage logic supply. The horn Available in DIP and SOIC packaging feedback control pin is designed for use with self- Available in Standard Packaging or RoHS oscillating piezoelectric horn but can also be used in Compliant Pb Free Packaging direct drive applications. Pin Configuration Applications Smoke detectors REGSEL HRNEN 1 8 CO Detectors VDD HORNS Personal Security Products Electronic Toys REGOUT HORNB FEED VSS Absolute maximum ratings Supply Voltage V ...............-.5V to +14V 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 ......... -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 R&E International Product Specification A Subsidiary of Microchip Technology Inc. Electrical Characteristics at T = 25 C, V = 9V, V = 0V (unless otherwise noted). A DD ss Test Limits Parameter Pin Test Conditions Min Typ Max Units Supply Voltage Operating 6.0 9.0 13.8 V Vdd Standby Supply Hrnen=Vss No Loads 4 uA Vdd Current Input Leakage Vin=Vdd or Vss -100 100 nA Hrnen,Resel Feed = +22V 20 50 uA FEED Feed = -10V -50 -15 uA FEED Input Voltage Low 1.0 V Hrnen, Regsel Input Voltage High 2.3 V Hrnen, Regsel Horns or Output Low Voltage Iout=16mA Vdd=9V 0.3 0.5 V Hornb Vdd=7.2V 0.9 V Horns or Output High Voltage Iout=-16mA Vdd=9V 8.5 8.7 V Hornb Vdd=7.2V 6.3 V Regulator Voltage Iout<50mA Regsel=Vdd 4.75 5.0 5.25 V Regout Iout<50mA Regsel=Vss 3.10 3.3 3.50 V T =-40 to 85 C See note 3 A Regout Line Regulation 6V<Vdd<12V No load 30 mV Regout Load Regulation 0mA<Iout<20mA 100 mV Brown-Out Threshold Regsel=Vdd or Vss 4.5 5.0 5.5 V Vdd Voltage *See note 1 Falling edge of Vdd Brown-Out Pull Down Vdd=4.5V Regout=2V 15 25 mA Regout Current Regout Overvoltage Regsel=Vdd Iout > 1mA 5.5 6.0 6.5 V Regout Clamp *See note 2 Regsel=Vss Iout > 1mA 3.7 4.0 4.3 V Notes: 1/ The brown-out threshold voltage is the Vdd voltage at which the regulator will be disabled and Regout will be pulled to Vss. 2/ In normal operation, the regulator will provide high-side current of up to 20mA, but current sinking capability is typically under 1uA. The overvoltage clamp is intended to limit the voltage at Regout when it is pulled up by an external source. 3/ The limits shown are 100% tested at 25C only. Test limits are guard-banded based on temperature characterization to guarantee compliance at temperature extremes. 2009 Microchip Technology Inc. DS22165A-page 2