HT7612_12 Datasheet, PDF (13/23 Pages) Holtek Semiconductor Inc – General Purpose PIR Controller

Photo-transistor Application Circuit
HT7612/HT7612B
Note:
Adjust R9 to fit various CDS.
Adjust R6 to obtain the desired output duration.
Adjust R5 to change PIR sensitivity.
Use a Photo-transistor instead of a CDS to meet European RoHS standards.
Rev. 1.70
13
July 16, 2012