Infrared Pyroelectric Sensor RDB224

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Digital PIR sensor RDB224, is an integrated design of sensitive element and signal processing chip, packaged sensitive element and IC chip into sensor shield. Sensitive element transfer the human movement signal to high-precision digital chip for data processing. Then the sensor gives digital signal for easy using.


* Delay time adjustable

* High-precision AD signal process

* Differential signal input mode, anti-interference ability

* Wide voltage power supply(1.5~4.5V) and power consumption

* Digital TTL signal output

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Infrared Induction Appliance

Human body induction empower home appliances with intelligence.In the field of human body induction, the main application fields of Winsen sensors are toys, burglar alarms, induction doors, induction lamps, induction switches, etc.


Infrared Alarm

The infrared alarm to prevent human intrusion is composed of pyroelectric infrared sensor and alarm controller. When someone enters the range to be protected, the sensor generates an electrical signal and transmits it to the controller, and the controller sends the alarm signal to the terminal through signal processing.


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Specification Product Size

Technical Data Sheet

Max Limit

Parameter Symbol Min Max Unit Note
Voltage VDD -0.3 4.5 V 25℃
Pin Voltage   -0.3 VDD+0.3 V 25℃
Storage temperature TST -40 125  

Working condition(T=25℃)

Parameter Symbol Min Typical Max Unit Note
Working condition
Voltage VDD 1.5 3 4.5 V Power supply mode
Current IDD   10   uA 10uA @3V@25℃
Sensitivity VSENS   104   uV  
Temperature WST -25   85  
ONTIME Input Range   0   VDD    
ONTIME Input Current VIL     20 nA Pull-down current
Output Pin(REL)
Output drive current IREL -5   5 mA  
Block time     2   S  
Delay time ONTIME 1   3600 S 16 levels of
Oscillators and filters
Low filter cut-off       7 Hz  
High filter cut-off       0.4 Hz  
Chip oscillator FCLK     32 KHz  
Chip oscillator error FCLK_Err -1000   1000 Ppm/K -20~80℃


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As a pioneer in gas sensor based solutions with the advanced processes, technologies and products, Winsen offers a wide range of gas sensors:


As a pioneer in gas sensor based solutions with the advanced processes, technologies and products, Winsen offers a wide range of gas sensors:


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