MC145017

www.DataSheet4U.com Freescale Semiconductor Technical Data MC145017 Rev. 6.0, 3/2007 Low-Power CMOS Ionization Smoke Detector IC with Temporal Pattern Horn Driver The MC145017, when used with an ionization chamber and a small number of external components, will detect smoke. When smoke is sensed, an alarm is sounded via an external piezoelectric transducer and internal drivers. This circuit is designed to operate in smoke detector systems that comply with UL217 and UL268 specifications. Features Ionization Type with On-Chip FET Input Comparator Piezoelectric Horn Driver Guard Outputs on Both Sides of Detect Input Input-Production Diodes on the Detect Input Low-Battery Trip Point, Internally Set, can be Altered Via External Resistor Detect Threshold, Internally Set, can be Altered Via External Resistor Pulse Testing for Low Battery Uses LED for Battery Loading Comparator Outputs for Detect and Low Battery Internal Reverse Battery Protection Supports NFPA 72, ANSi 53.41, and ISO 8201 Audible Emergency Evacuation Signals Pb-Free Packaging Designated by Suffix Code ED and EG ORDERING INFORMATION Device MC145017P 648-08 MC145017ED MCZ145017EG/R2 751G-04 SOICW Plastic Dip Case No. Package MC145017 LOW-POWER CMOS IONIZATION SMOKE DETECTOR IC WITH TEMPORAL PATTERN HORN DRIVER P SUFFIX ED SUFFIX (PB-FREE) PLASTIC DIP CASE 648-08 EG SUFFIX (PB-FREE) 16-LEAD SOICW CASE 751G-04 DETECT COMP. OUT N/C LOW V SET LOW V COMP. OUT LED VDD TIMING RESISTOR FEEDBACK 1...