COMedia KC778B
This is the regulated supply voltage to the chip (nominally 5 V). When the voltage on this pin equals the pyro drain reference voltage on pin 7 the PIR sensitivity will be minimum (±500 mV).| Part No. | KC778B |
|---|---|
| Datasheet | KC778B Download |
| Manufacturer |  COMedia |
| Description | Master PIR Control Chip |
| Buy | Stock & Price |
FEATURES
: A) Circuit design maximizes performance while minimizing external component count and board layout space. B) Low cost solution for PIR motion control switching applications. C) High sensitivity PIR input with special noise cancellation circuitry. D) Choice of two PIR gain settings: 62 db and 68 db. E) Adjustable PIR sensitivity. F) Internal switched capacitor bandpass filter reduces external component count and improves reliability by minimizing sensitivity to external component values. G) RFI noise immunity exceeds 30 V/m from 1 MHz to 1000 MHz. H) High immunity to line frequency noise. I) Daylight detector circuitry is designed to use either silicon photo diode or CdS detector. J) Adjustable daylight detector sensitivity. K) Adjustable OFF timer accuracy is determined by external components. L) Output can directly drive TRIACs, opto-couplers and small relays (no buffering required). M) Four main operating modes can be used in any combination: 1)Auto-ON: Load turns on when motion is detected (adjustable sensitivity).
