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Help CenterDigital Control Circuit Sensitive Element BS312
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Overview
PIR sensor sense the motion object, always used to detet the human. There is a detect rang for the PIR sensor. When a people move in or out of the detect rang, the PIR sensor will be triggered. PIR sensor are low-power, small, easy to used. For this reason it can be used for the alarm system and lighting control. PIR sensor also named passive infrared, Pyroelectric or IR motion sensor.
Features of BS312 Low Voltage PIR Sensor
Power adjustable, save more energy
Two-way differential high impedance sensor input
Technical Data of BS312 Low Voltage PIR Sensor
1. Maximum Ratings
Characteristics |
Symbol |
Min. Value |
Max. Value |
Unit |
Remarks |
Supply Voltage |
VDD |
-0.3 |
5 |
V |
|
Working Temperature |
TST |
-20 |
85 |
℃ |
|
Max.current for pin |
Into |
-100 |
100 |
mA |
|
Storage Temperature |
TST |
-40 |
125 |
℃ |
2.Working Conditions (T=25°C, Vdd=3V，Except other requirements)
Characteristics |
Symbol |
Min. |
Type |
Max. |
Unit |
Remarks |
Supply Voltage |
VDD |
2.0 |
3 |
3.3 |
V |
IR=0.5mA |
Working Current |
IDD |
9 |
9.5 |
11 |
μA |
|
Sensitivity |
VSENS |
90 |
μV |
|||
Output REL | ||||||
Output Low Current |
IOL |
10 |
mA |
VOL |
||
Output High Current |
IOH |
-10 |
mA |
VOL>(VDD-1V) |
||
Lock time |
TOL |
2.3 |
s |
|||
On-time |
TOH |
2 |
3600 |
s |
||
Output REL | ||||||
Output Low Current |
10 |
mA |
VOL |
|||
Output Hight Current |
-10 |
mA |
VOL>(VDD-1V) |
|||
Oscillator & Filter | ||||||
Low pass filter cut-off frequency |
7 |
Hz |
||||
High pass filter cut-off frequency |
0.44 |
Hz |
||||
Oscillator frequency on Chip |
FCLK |
64 |
kHz |
|||
Interior Block Diagram |
||||||
Applications of BS312 Wide Angle PIR Sensor
Intelligent security- burglar alarm
Wireless infrared detection alarm, uses advanced signal analysis and processing technology. When the intruder enters through the detection area, it sends alarm signal to control panel.
The PIR sensor is suitable for home, residential area, factory, shopping mall, warehouse, and offices.
FAQ of Digital PIR Sensor
1.Can PIR sensor detect animals?
PIR sensors are excellent in human and animal detection. They are mostly used in triggering an intruder alarm and activate household appliances upon the presence of a human.
2.Do PIR sensors work through glass?
No, alarm motion sensors do not work through glass. Most motion sensors use passive infrared (PIR) technology to detect motion. Changes in IR energy are not easily detected through glass. This is why motion sensors will generally not work through windows, which are usually insulated.
Senba sensing technology co ltd is a pir sensor manufacturers, we provide senba sensing technology, pir switch circuit, wide angle pir sensor, passive ir motion sensor and etc. Welcome to contact us.
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