RE46C140S16F Microchip Technology, RE46C140S16F Datasheet
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RE46C140S16F
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RE46C140S16F Summary of contents
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... R&E International A Subsidiary of Microchip Technology Inc. RE46C140 CMOS Photoelectric Smoke Detector ASIC with Interconnect and Timer Mode Product Specification General Description The RE46C140 is low power CMOS photoelectric type smoke detector IC. With minimal external components this circuit will provide all the required features for a photoelectric type smoke detector ...
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... VDD=12V, Vin=VSS 15,16 FEED=-10V 10 1,2 VDD=12V, Vin=VDD, STROBE active VDD=12V, Vin=VDD 3,12,10 FEED=22V 10 Vin=VDD 16 Vin=VDD 15 Vin=VDD 7 Vin=17V, VDD=12 7 Output Off, Output=VSS 11,13 Output Off, Output=VDD 11,13 R&E International A Subsidiary of Microchip Technology Inc. Limits Min Typ Max Units 5 6.2 4 ...
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... Local smoke, Push to Test or 1,2,3 Chamber Test, Note 1 - Internal Reference, Note 1 VDD=6V to 12V, STROBE Output 4 Voltage VDD=6V to 12V, IRED Output 6 Voltage 4,5 Active, VDD=6V to 12V 6,5 Active, VDD=6V to 12V R&E International A Subsidiary of Microchip Technology Inc. Limits Min Typ Max Units 5 -16 ...
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... At Conclusion of Local Alarm or 7 Test Alarm From Start of Local Alarm Active IO pulse width guaranteed filtered Input, No Local Alarm No Local Alarm, From IO Active 7 Horn Active No Alarm Condition, Note 2 TPER R&E International A Subsidiary of Microchip Technology Inc. Limits Min Typ Max 9.4 10.5 11.5 9.4 10.5 11 .45 .5 ...
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... RE46C140 CMOS Photoelectric Smoke Detector ASIC with Interconnect and Timer Mode Product Specification 2009 © Microchip Technology Inc. R&E International A Subsidiary of Microchip Technology Inc. DS22179B-page 5 ...
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... RE46C140 CMOS Photoelectric Smoke Detector ASIC with Interconnect and Timer Mode Product Specification 2009 © Microchip Technology Inc. Functional Block Diagram Figure 1 R&E International A Subsidiary of Microchip Technology Inc. DS22179B-page 6 ...
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... In the timer mode this input pin can be used to set an external smoke comparator reference. 16 TEST This input is used to invoke two test modes and the timer mode. This input has an internal pull-down. 2009 © Microchip Technology Inc. PIN DESCRIPTIONS DESCRIPTION R&E International A Subsidiary of Microchip Technology Inc. DS22179B-page 7 ...
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... C3 is typical for an alkaline battery. This capacitance should be increased to 4.7uF or greater for a carbon battery. 3. R10, R11 and C6 are typical values and may be adjusted to maximize sound pressure. 2009 © Microchip Technology Inc. Typical Application Figure 2 R&E International A Subsidiary of Microchip Technology Inc. DS22179B-page 8 ...
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... The interconnect input has a 670mS nominal digital filter. This allows for interconnection to other types of alarms (carbon monoxide for example) that may have a pulsed interconnect signal. 2009 © Microchip Technology Inc. R&E International A Subsidiary of Microchip Technology Inc. =.6931 * DS22179B-page 9 ...
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... The LED pin is used as a low battery indicator. For VDD above the low battery threshold the open drain NMOS is off. If VDD falls below the threshold the NMOS turns on. 2009 © Microchip Technology Inc. are in place and a high to low transition occurs on the TEST input the adj2 Description R&E International A Subsidiary of Microchip Technology Inc. DS22179B-page 10 ...
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... Chamber Test and Warning is Offset from Low Battery Test and Warning by 21.5 Seconds. 2009 © Microchip Technology Inc. Timing Diagrams Standby, No Alarm (not to Scale) T PER1 T ON2 T PLED1 Low Supply or Chamber Test Failure Low Battery Warning Chirp T HOF3 R&E International A Subsidiary of Microchip Technology Inc. T HON3 DS22179B-page 11 ...
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... IO Dump active only in local alarm, inactive if external alarm. 2009 © Microchip Technology Inc. Timing Diagrams (continued) Local Alarm Timing (not to scale) T PER2 T PLED2 Local or Remote Alarm Horn Temporal Pattern HON1 HOF1 HOF2 Interconnect Timing T IODLY2 R&E International A Subsidiary of Microchip Technology Inc. No Alarm DS22179B-page 12 ...
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... PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total Endurance, TSHARC, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...