Holtek Semiconductor HT7612B
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.| Part No. | HT7612B |
|---|---|
| Datasheet | HT7612B Download |
| Manufacturer |  Holtek Semiconductor |
| Description | General Purpose PIR Controller |
| Buy | Stock & Price |
FEATURES
● Operating voltage: 2.7V ~ 5.5V● Standby current typical: HT7612: 17mA HT7612B: 19mA
● CDS input
● CDS debounce time: HT7612: 15~20 seconds HT7612B: < 3 seconds
● High noise immunity
APPLICATIONS
● PIR light control● Motion detectors
● 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 NSOP packages
● Alarm system
● Auto door bells
GENERAL DESCRIPTION
Selection Table Part No. HT7612 HT7612B CDS Debounce Time 15~20 seconds < 3 seconds Block Diagram O P 2O O P 2N O P 1O O P 1N O P 1P A m p lifie r C ir c u it VDD VSS C o m p a ra to r C ir c u it VREF DT T E S T /S C LD O & R e fe r a n c e V o lta g e T im in g D e la y S y s ta m O s c illa to r C o n tro l C ir c u it B U Z /L V D B U Z /C D S R E L A Y /L E D T R A IC ZC M ODE Rev. 1.90 1 July 7, 2020 HT7612/HT7612B Pin Assignment O P 1P 1 O...
