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MC145018 bảng dữ liệu(PDF) 1 Page - Freescale Semiconductor, Inc |
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MC145018 bảng dữ liệu(HTML) 1 Page - Freescale Semiconductor, Inc |
1 / 8 page MC145018 Rev 4, 05/2005 Freescale Semiconductor Technical Data © Freescale Semiconductor, Inc., 2005. All rights reserved. Low-Power CMOS Ionization Smoke Detector IC with Interconnect and Temporal Horn Driver The MC145018, 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-Protection 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 Output for Detect • Internal Reverse Battery Protection • Strobe Output for External Trim Resistors • I/O Pin Allows Up to 40 Units to be Connected for Common Signaling • Supports NFPA 72, ANSi 53.41, and ISO 8201 Audible Emergency Evacuation Signals • Power-On Reset Places IC in Standby Mode ORDERING INFORMATION Device Case No. Package MC145018P 648-08 Plastic Dip MC145018 IONIZATION SMOKE DETECTOR IC WITH INTERCONNECT AND TEMPORAL HORN DRIVER P SUFFIX PLASTIC DIP CASE 648-08 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 I/O LED VDD Guard Lo-Z Silver Brass VSS Detect Comp. Out Low V Set Strobe Out Timing Resistor Feedback OSC Capacitor Sensitivity Set Detect Input Guard Hi-z Figure 1. Pin Assignment |
Số phần tương tự - MC145018 |
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Mô tả tương tự - MC145018 |
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