General Description
The HT7612/HT7612B is PIR controller specifically designed to interface to PIR sensors to implement motion
sensing application products such as intruder alarms. The controller has the features of PIR sensitivity adjust
ment and a CDS can be connected to the controller for automatic detection. The HT7612/HT7612B is available
in low profile NSOP & DIP packages.

FEATUREs
Operating voltage: 2.7V ~ 5.5V
Standby current typical:
  HT7612: 17A
  HT7612B: 19A
CDS input
CDS debounce time:
  HT7612: 15~20 seconds
  HT7612B: < 3 seconds
High noise immunity
40 second power-on delay
10 second high speed warm-up for test mode
1~3783 second adjustable PIR turn on time.
Output drive for Relay, TRIAC and LED
Output drive buzzer alarm
Low voltage detector
Override function
16-pin DIP/NSOP packages

APPLICATIONs
PIR light control
Motion detectors
Alarm system
Auto door bells