KC778B

KC778B Master PIR Control Chip (MPCC) Specification ___________________________________________________________________________ General : The MPCC has been designed for easy implementation of AC control functions that use a Passive Infra-Red (PIR) motion detector. Due to its high sensitivity and reliability, it is also widely used in security product. Minimum external component High senstivity High RFI immunity Daylight adjustment Off delay timer 20 pin DIP 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 (adjustab...