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Pyroelectric Infrared Sensor

Pyroelectric Infrared Sensor

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BS612

Pyroelectric Infrared Sensor

PROD Model: BS612

Window Size: 3*4mm

Output Signal:High and low level output

Sensing Distance: 12M(lens SB-F-02)

See lens selection for different distances

Sensing Angle: 120° (horizontal direction)

Working Voltage: 2.2-3.7V

Static Power Consumption: <12uA

General Description

 BS612 is a pyroelectric infrared sensor
that integrates digital intelligent control circuit and human body
detection sensitive element in electromagnetic shielding cover. The
human body detection sensor couples the sensed human body movement
signal to the digital intelligent integrated circuit chip through a very
high impedance differential input circuit, and the digital intelligent
integrated circuit converts the signal into an ADC digital signal. When
the PIR signal exceeds the selected digital threshold There will be a
timed REL level output. The OEN enable terminal enables the REL output
or automatic control by the light sensor. Sensitivity and time
parameters are set by voltage divider resistors. All signal processing
is done on-chip.

Features

Digital signal processing, no drift and aging

High power supply rejection ratio, anti-radio frequency interference(mobile phone,WiFi,etc.)

A second-order Butterworth bandpass filter with built-in infrared sensor to shield input interference at other frequencies

Sensitivity,Ontime,and light sensor Schmitt REL output

Ontime adjustable

Good stability and effective suppression of repeated malfunctions

Low power consumption and simple application circuit


Technical Data

1.Absolute Maximum Ratings 

Electrical characteristics(beyond those listed below may cause permanent damage to the device. Exposure to absolute maximum ratings may affect the device reliability. )

Parameter

Symbol

Min

Max

Unit

Remarks

Operating Temp

TST

-30

70


Current into any pin

Into

-100

100

mA


Storage Temp

TST

-40

80


2. Operating Conditions (T=25°C, Vdd=3Vunless stated otherwise)

Parameter

Symbol

Min

Type

Max

Unit

Remarks

Regular voltage

VDD

2.2

3

3.7

V


Supply current

IDD

9

9.5

11

μA


Sensitivity threshold

VSENS

90


2000

μV


Detective Wavelength

λ

5


14

um


Outputs REL

Output current low

IOL

10



mA

VOL<1V

Output current high

IOH

-10



mA

VOH>(VDD-1V)

Low REL output locking time

TOL


2


s

Non-adjustable

High REL output delay time

TOH

2


3600

s


Inputs SENS, ONTIME

Input voltage range


0


VDD1/2

V

Adjustable between 0V and VDD/2

Input leakage current


-1


1

μA


Input OEN

Input low voltage

VIL

0.8V-1.2V (Hysteresis zone)


0.8

V

Voltage threshold from high to low

Input high voltage

VIH

1.2



V

Voltage threshold from low to high

Input current

II

-1


1

μA

VSS<VIN<VDD

Oscillator and Filter

LPF cutoff frequency




7

Hz


HPF cutoff frequency




0.44

Hz


On chip oscillator frequency

FCLK



64

kHz


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