HT7M2126 Datasheet, PDF (1/25 Pages) Holtek Semiconductor Inc – PIR Detector Miniaturized Module

HT7M2126/27/36/56/76
PIR Detector Miniaturized Module
General Description
Holtek’s human body infrared detector �m�i�c�ro���m���o�d�
ules, the HT7M21xx series, come fully integrated
with optical lenses, a passive infrared (PIR) sensor
and DSP algorithms. These modules include a wide
range of features such as low power consumption,
an I²C communication interface and DSP algorithms
which improve the reliability of the PIR detector.
Their application range includes home security and
surveillance system as well as basic industrial safety
detection.
Features
• Operating voltage: 2.7V ~ 5.5V
• Operating temperature: -10 ~ 60°C
• Low power consumption:
♦♦ Operating mode (Moving objects to be detected)
< 1.5mA
♦♦ Standby with detecting mode < 50μA (Operating
voltage 3.3V)
• Intelligent signal recognition algorithm
• Optional communication interfaces: I²C for
Network Mode or I/O for Stand-alone Mode
• Adjustable sensing sensitivity – Network Mode
• Customisable trigger modes: Single/Continuous –
Network Mode
• Adjustable trigger output time: 16-bit×100ms –
Network Mode
• Low voltage detection: 2.0/2.2/2.4/2.7/3.0/3.3/3.6/
4.0V options – Network Mode
• Supports external optical sensors (eg. photo
transistors)
• Integrated temperature sensor with temperature
compensation
• Quick stabilisation: ready for stable operation
within 12 seconds after power on
Applications
• Security Monitoring Systems
• Intelligent Lighting Control
• Home Appliances Energy-saving Control
• Office and Factory Equipment Automation
Block Diagram
Rev. 1.20
1
June 17, 2016