Infrared Pyroelectric Sensor RDB226-S

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Digital PIR sensor RDB226-S, 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.


* High-precision AD signal process

* Differential signal input mode, anti-interference ability

* Sensitivity, delay time, and light adjustment function

* Enable pin controls the sensor output

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

* Digital TTL signal output

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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
Current IDD   10   uA 10uA
Sensitivity VSENS   104   uV  
Temperature WST -20   85  
SENS, ONTIME Input   0   VDD    
SENS, ONTIME Input       20 nA Pull-down
Current current
OEN Input Low LEL VIL_OEN     0.6 V  
OEN Input High LEL VIH_OEN 1.2     V  
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 frequency       7 Hz    
High filter cut-off frequency       0.4 Hz    
Chip oscillator frequency 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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