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| R&E International RE46C117 DC to DC Converter and Piezoelectric Horn Driver Product Specification General Description The RE46C117 is intended for use in 3V or 4.5V battery or battery-backed applications. The circuit features a DC-to-DC up-converter and driver circuit suitable for driving a piezoelectric horn Features * * * * Low Quiescent Current 10V Up Converter Low Horn Driver Ron Available in Standard Packaging or RoHS Compliant Pb Free Packaging Applications Smoke detectors CO Detectors Personal Security Products Electronic Toys Pin Configuration FEED VDD LX VSS 1 2 3 4 8 7 6 5 HRNEN HORNS HORNB VO ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Input Voltage Range Except FEED FEED Input Voltage Range Input Current except FEED Operating Temperature Storage Temperature Continuous Operating Current (HornS, HornB, VO) SYMBOL VDD VOUT Vin Vinfd Iin TA TSTG IO VALUE 5 12 -.3 to Vdd +.3 -10 to +22 10 0 to 50 -55 to 125 40 UNITS V V V V mA C C mA 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 charge Telephone 610.992.0727 Page 1 of 5 E-mail: rande@randeint.com DS-RE46C117-011207 This datasheet contains PROPRIETARY and CONFIDENTIAL information. Facsimile 610.992.0734 RE46C117 DC to DC Converter and Piezoelectric Horn Driver Product Specification R&E International Electrical Characteristics Limits apply at Vdd=3V, Vss=0V, Cvo=10uF, TA=0C to 50C, unless otherwise noted. Typical values are at TA=27C. Parameter Supply Voltage Standby Supply Current Quiescent Supply Current Quiescent Ivo Input Leakage Input Voltage Low Input Voltage High Output Low Voltage Output High Voltage VO Output Voltage VO Efficiency Brownout Threshold Symbol Vdd Iddstby Iddq Ivoq Iin Iihf Iilf Vil Vih Vol1 Voh1 Vvo1 Vvo2 Voeff1 Voeff2 Vobvt Test Conditions Operating HRNEN low; No loads; DC-DC Running HRNEN low; No loads; VO=5V; Vlx=0.5V Same conditions as above for Iddq HRNEN Input, Vin=VDD or VSS FEED=+22V; VO=10V FEED=-10V; VO=10V HRNEN Input HRNEN Input HORNB or HORNS; Iout=16mA; Vdd=3V HORNB or HORNS; VO=10V; Iout=-16mA; Vdd=HRNEN=3V Vdd=3V; HRNEN=3V: Iout=10mA Vdd=3V; HRNEN=0V; Iout=10mA Iload= 10mA, Vdd=3V; HRNEN=0V Iload=100uA; Vdd=3V; HRNEN=0V Falling edge of VO Min 2.0 Limits Typ 20 7 7 Max 5.0 Units V uA uA uA nA uA uA V V -100 -50 2.3 .3 9.5 9.7 10 4 85 75 3.6 20 -15 100 50 1 .5 V V V V % % V Notes: 1/ The brown-out threshold voltage is the VO voltage at which the horn will be disabled. 2/ 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 5 E-mail: rande@randeint.com DS-RE46C117-011207 This datasheet contains PROPRIETARY and CONFIDENTIAL information. Facsimile 610.992.0734 RE46C117 DC to DC Converter and Piezoelectric Horn Driver Product Specification R&E International Functional Block Diagram Telephone 610.992.0727 Page 3 of 5 E-mail: rande@randeint.com DS-RE46C117-011207 This datasheet contains PROPRIETARY and CONFIDENTIAL information. Facsimile 610.992.0734 RE46C117 DC to DC Converter and Piezoelectric Horn Driver Product Specification R&E International Typical Application Circuit Notes: 1/ Schottky diode D1 must have maximum peak current rating of at least 1.5A and for best results should have forward voltage spec of less than 0.5V at 1 Amp. 2/ Inductor L3 must have maximum peak current rating of at least 1.5A and for best results should have DC resistance of less than 0.5 ohm. Telephone 610.992.0727 Page 4 of 5 E-mail: rande@randeint.com DS-RE46C117-011207 This datasheet contains PROPRIETARY and CONFIDENTIAL information. Facsimile 610.992.0734 RE46C117 DC to DC Converter and Piezoelectric Horn Driver 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 5 of 5 E-mail: rande@randeint.com DS-RE46C117-011207 This datasheet contains PROPRIETARY and CONFIDENTIAL information. Facsimile 610.992.0734 |
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