Senba Sensing Technology Co., Ltd.
Digital Control Circuit Sensitive  Element BS312
Digital Control Circuit Sensitive  Element BS312

Digital Control Circuit Sensitive Element BS312

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<1V

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<1V

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.

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