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| R&E International 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 85C 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 Telephone 610.992.0727 Page 1 of 4 Facsimile 610.992.0734 This datasheet contains PROPRIETARY information. E-mail: rande@randeint.com DS-RE46C108-011507 RE46C108 Piezoelectric Horn Driver and Voltage Regulator Product Specification R&E International Electrical Characteristics at TA = 25C, 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<50mA; Regsel=Vdd Iout<50mA; Regsel=Vss TA=-40 to 85C See note #3 6V V V V V V V V V mV mV V mA V V Line Regulation Load Regulation Brown-Out Threshold Voltage *See note #1 Brown-Out Pull Down Current Regout Overvoltage Clamp *See note #2 Notes: 4.5 15 5.5 3.7 5.5 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. Telephone 610.992.0727 Page 2 of 4 Facsimile 610.992.0734 This datasheet contains PROPRIETARY information. E-mail: rande@randeint.com DS-RE46C108-011507 RE46C108 Piezoelectric Horn Driver and Voltage Regulator Product Specification R&E International Typical Application Functional Block Diagram VDD 2 Bandgap Reference 3 REGOUT REGSEL 1 Output Adjust Clamp & Shutdown Circuit 4 FEED HRNEN 8 7 HORNS VSS 5 6 HORNB Telephone 610.992.0727 Page 3 of 4 Facsimile 610.992.0734 This datasheet contains PROPRIETARY information. E-mail: rande@randeint.com DS-RE46C108-011507 RE46C108 Piezoelectric Horn Driver and Voltage Regulator Product Specification R&E International R&E INTERNATIONAL, Inc. reserves the right to make changes without further notice to any products herein to improve reliability, function or design. R&E INTERNATIONAL, Inc. does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights, nor the rights of others. R&E INTERNATIONAL, Inc. products are not authorized for use as critical components in life support devices or systems without the express written approval of the President of R&E INTERNATIONAL, Inc. Life support devices or systems are devices or systems which are intended for surgical implant into the body to support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. Telephone 610.992.0727 Page 4 of 4 Facsimile 610.992.0734 This datasheet contains PROPRIETARY information. E-mail: rande@randeint.com DS-RE46C108-011507 |
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