MOSDESIGN SEMICONDUCTOR CORP.
PIR CONTROLLER FOR RELAY OR TRIAC APPLICATION
PIR CONTROLLER
M7622
DESCRIPTION
The M762...
MOSDESIGN SEMICONDUCTOR CORP.
PIR CONTROLLER FOR RELAY OR TRIAC APPLICATION
PIR CONTROLLER
M7622
DESCRIPTION
The M7622 integrated circuit combines all required functions for a single chip Passive Infra-Red (PIR) light controller. It is designed for load switching with a TRIAC in 2 wire and 3 wire systems. External potentiometers or resistors are used to set the operating parameters for sensitivity, on-time, brightness, fade, daylight sensor and environment temperature correction. The corresponding
voltage levels are converted to digital values with a 4 bit Resolution. All signal processing is performed digitally.
FEATURES
‧ Digital signal processing ‧ On chip rectifier and supply regulator ‧ Temperature compensation input ‧ Adjustable soft on/off switching (fading) ‧ Light mode:Increase lamp brightness from set brightness to full brightness on movement. ‧ Light mode:Increase lamp brightness from off to set brightness on movement. ‧ Dimmer function ‧ Inductive load switching ‧ Drive either RELAY or TRIAC ‧ Suitable for 115V/60Hz and 230V/50Hz applications ‧ SOP-16 package
APPLICATIONS
‧ PIR light controller, Motion Detector, Alarm system, Auto-door bell
PIN ASSIGMENT
ZCD TOG RETRIG
VDD PIRIN TEST CDS BRIGHT
M7622
1 16
89
VSS AC1 RELAY TRIAC
TCOMP ON_TIME SENS FADE
1/8 2016-09-14
MOSDESIGN SEMICONDUCTOR CORP.
PIR CONTROLLER FOR RELAY OR TRIAC APPLICATION
BLOCK DIAGRAM
CDS ZCD
PIR CONTROLLER
M7622
PIRIN AC1
Input Amplifier A /D Converter
Band Pass Filter
Mains Re...