Rdb223 digital pyroelectric sensor
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product details
Rdb223 digital pyroelectric sensor is an integrated design of the sensitive element and signal processing chip of the traditional pyroelectric sensor. The sensitive element and IC chip are integrated and packaged into the sensor shield. The sensitive element transmits the infrared signal generated by human body movement to a high-precision digital intelligent processing chip for processing by differential input. The signal processing is completed and the transmission is completed The sensor outputs digital signal directly, which is convenient to use.
Sensor features
1. High precision ad signal processing;
2. Differential signal input mode, strong anti-interference ability;
3. Wide voltage power supply 1.5 ~ 4.5V, low power consumption;
4. Digital TTL signal output.
Main applications
/ / security products
The human body induction toy
The human body induction lamps, switches and household appliances
Industrial automation control
Smart home
The Internet of things terminal
Smart home appliances, etc
Technical index
1. Limit parameters
Parameter symbol minimum maximum unit remarks
Supply voltage VDD - 0.3 4.5 V 25 � C
Storage temperature: TST - 40 ? 125 ?
2. Working conditions (t = 25 ?)
Parameter symbol minimum typical maximum unit remarks
Working conditions
Working voltage VDD 1.5 3.0 4.5 V power supply mode
Working current IDD 10 UA 10uA
@ 3V@25 Degree C
Sensitivity threshold vsens 104 UV
Working temperature: WST - 25.85 ?
output
The output driving current is Irel - 5 5 mA
Blocking time: 2.0 s
The delay time is ontime 1.0 s
Oscillators and filters
The cut-off frequency of low-pass filter is 7 Hz
Cut off frequency of high pass filter is 0.4 Hz
Chip oscillator frequency fclk 32 kHz
Chip oscillator error fclk_ Err -1000 1000 ppm/K -20~80癈
Note: product parameters are subject to change without prior notice
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