RE46C121
RE46C121 is an Ionization smoke detector IC w/temporal, interconnect
制造商:Microchip
产品信息
The RE46C121 is low power CMOS ionization type smoke detector IC. With few external components this circuit will provide all the required features for an ionization type smoke detector. An internal oscillator strobes power to the smoke detection circuitry for 10.5mS every 1.66 seconds to keep standby current to a minimum. A check for a low battery condition is performed every 40 seconds when in standby. The temporal horn pattern supports the NFPA 72 emergency evacuation signal. An interconnect pin allows multiple detectors to be connected such that when one unit alarms all units will sound. Although this device was designed for smoke detection utilizing an ionization chamber it can be used in a variety of security applications. The RE46C121 was designed for use in smoke detectors that comply with Underwriters Laboratory Specification UL217 and UL268.
Guard Outputs for Ion Detector Input
+/-0.75pA Detect Input Current
Internal Reverse Battery Protection
Internal Low Battery Detection
Low Quiescent Current Consumption (
Available in 16L PDIP or 16L N SOIC
ESD Protection on all Pins
Interconnect up to 40 Detectors
Compatible with MC145018
Available in Standard Packaging or RoHS Complaint Pb Free Packaging
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型号:RE46C121E16F
描述:-