4 Pins Passive Infrared Sensor BL412 for Alarm System
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Overview
Senba PIR Motion Sensors are passive infrared type sensors. Passive infrared sensor working temperature is -20~ 85℃. There are 3type for PIR pins, 3pins, 4pins, 6pins. For 3 pins type, 2s not adjustable. For 4pins, delay time adjustable. For 6pins, delay time, sensitivity, lighting adjustable.
Features
Robust Design Against False Starts
Low Curvature Lens
Technical Data
- Maximum Ratings
|
Characteristics |
Symbol |
Unit |
Remarks |
||||||
|
Supply Voltage |
VDD |
-0.3 |
V |
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|
Working Temperature |
TST |
-20 |
85 |
℃ |
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|
Into |
-100 |
100 |
mA |
||||||
|
Storage Temperature |
TST |
-40 |
125 |
℃ |
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|
Characteristics |
Symbol |
Type |
Unit |
Remarks |
|||||
|
Supply Voltage |
VDD |
3 |
V |
IR=0.5mA |
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|
Working Current |
IDD |
9 |
11 |
μA |
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|
Sensitivity |
VSENS |
90 |
μA |
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|
Output REL |
|||||||||
|
Output Low Current |
IOL |
10 |
mA |
VOL<1V |
|||||
|
Output High Current |
IOH |
-10 |
mA |
VOL>(VDD-1V) |
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|
Lock time |
TOL |
s |
|||||||
|
On-time |
TOH |
2 |
3600 |
s |
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|
ONTIME |
|||||||||
|
Input voltage |
0 |
VDD |
V |
0Vto ¼ VDD |
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|
Input Bias Current |
-1 |
1 |
μA |
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|
Oscillator & Filter |
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|
Low pass filter cut-off frequency |
7 |
Hz |
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|
High pass filter cut-off frequency |
Hz |
||||||||
|
Oscillator frequency on Chip |
FCLK |
64 |
kHz |
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|
Interior Block Diagram |
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Application
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
- Passive alarm sensors?
The sensor is called passive because it doesn't emit light to get measurements. The sensor in PIR is actually split into two parts. The reason for that is to measure motion. ... The sensor is also sensitive enough to even detect IR radiation source movement while the object is already in it's field of view.
Most low-cost motion detectors can detect up to distances of at least 15 feet (4.6 m).
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