Indoor applications (doorbells, cat eyes, ceiling lights, cameras, etc.)

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BX404

PROD Model: BX404
Window Size: 4*4mm
Output Signal:Digital signal 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: <11uA

Overview

The product is a type of intelligent PIR sensor which integrates digital circuit and sensitive element in a hermetically sealed package. It interfaces directly with up two conventional PIR sensors via a high impedance differential input. The PIR signal is converted to a digital value on chip. A REL output indicates whenever the PIR Signal is above the selected threshold. The parameters for timing is set by connecting the corresponding inputs to DC voltages. All signal processing is performed digitall


Feature

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

★ Ontime 2s

★ Sensitivity adjustable

★ Good stability and effective suppression of repeated 

    malfunctions

★ Low power consumption and simple application circuit 

Datasheet

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

SENS 32 Level






Adjustable

Inputs SENS

Input voltage range


0


VDD1/2

V

Adjustable between 0V and VDD/2

Input leakage current


-1


1

μA


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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Tel.: +86-755-82594732

E-mail: sales.sz@nysenba.com

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SENBA Sensing Technology Co.,Ltd.(stock code:300701), was founded in 2005, with the focus on producing the top quality photoelectric components, such as PIR sensors, Photoresistors,Light Sensors, Flame detectors etc. Our strategic goal is to master the core technology.