RE46C105E14F

R&E International A Subsidiary of Microchip Technology Inc. RE46C105 Piezoelectric Horn Driver with Voltage Regulator and LED Driver Product Specification General Description Features The RE46C105 is a piezoelectric horn driver with a voltage regulator and an open drain NMOS driver suitable for use with a light emitting diode. It is intended for 9V battery applications which require a low voltage logic supply. The regulator can be operated at either 3.3V or 5V. The horn feedback control pin is designed for use with self-oscillating piezoelectric horn but can also be used in direct drive applications. A low battery detection circuit is also provided. • • • • • • Applications Smoke detectors CO Detectors Personal Security Products Electronic Toys Low Quiescent Current Low Horn Driver Ron Voltage Regulation to 3.3V or 5V Low Battery Detection Available in DIP and SOIC packaging Available in Standard Packaging or RoHS Compliant Pb Free Packaging Pin Configuration LBOUT 1 14 REGEN LBSTRB REGOUT LBSET REGSEL LED HRNEN VDD HORNS LEDEN HORNB FEED 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 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. DS22167A-page 1 RE46C105 Piezoelectric Horn Driver with Voltage Regulator and LED Driver Product Specification R&E International A Subsidiary of Microchip Technology Inc. Electrical Characteristics at TA = 25°C, VDD = 9V, Vss = 0V (unless otherwise noted). Parameter Supply Voltage Standby Supply Current Input Leakage Test Pin Vdd Vdd Hrnen,Leden, Lbstrb,Regen FEED FEED Input Voltage Low Input Voltage High Output Low Voltage Output High Voltage Hrnen,Leden, Lbstrb,Regen Hrnen,Leden Lbstrb,Regen Horns or Hornb LED LBout Horns or Hornb LBout Low Battery VoltageThreshold Low Battery Voltage Hysteresis Lbstrb to Lbout Active delay Regulator Voltage Line Regulation Load Regulation Brown-Out Threshold Voltage Vdd Lbstrb Lbstrb, Lbout Regout Regout Regout Vdd Test Conditions Operating Hrnen=Lbstrb=Leden=Vss Regen=Vdd; No Loads Vin=Vdd or Vss Min 6.0 Limits Typ Max 9.0 13.8 3.5 -100 100 nA Feed = +22V Feed = -10V 50 -50 uA uA V 20 -15 1.0 2.3 Iout=16mA Vdd=9V Vdd=7.2V Iout=10mA Vdd=7.2V Iout=100uA Iout=-16mA Vdd=9V Vdd=7.2V Iout=-100uA Regsel=Vdd Regsel=Vss Lbstrb=Vdd, Vdd decreasing in voltage TA=-40 to 85°C See note #3 Lbstrb=Vdd Vdd increasing in voltage Lbstrb=Vdd V 0.3 8.5 6.3 4.5 2.8 7.2 Units V uA 0.5 0.3 8.7 0.5 0.9 1.0 0.5 4.75 3.0 7.80 V V V V V V V V V 300 mV 500 uS Iout