Indoor applications (night lights, cabinet lights, toys, etc.)

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NS312

PROD Model: NS312
Window Size: 3*4mm
Output Signal:High and low level output
Sensing Distance: 10M(lens SB-F-02)
See lens selection for different distances
Sensing Angle: 120° (horizontal direction)
Working Voltage: 2.2-3.7V
Static Power Consumption: <15uA

Overview

NS312 is a type of PIR sensor which integrates a digital control circuit and a human detection sensor in an electromagenetic shielding housing.The human body detection sensor couples the sensed human 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, and all signal processing is done on the chip.



Feature

Digital signal output  

★ Low power consumption、Low voltage ,Short warm-up 

    time 

★ High power supply rejection ratio, anti-RF 

    interference

★ The second-order Butterworth bandpass filter with built-in

    infrared sensor shields input interference at other 

    frequencies 

★ Good stability, effective suppression of repetitive 

    misoperations 

★ The application circuit is simple 

★ Timing time 2S output

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.Operationg Conditon (T=25°C, Vdd=3V,unless stated otherwise)

Parameter

Symbol

Min

Type

Max

Unit

Remarks

Regular voltage

VDD

2.7

3

3.3

V


Operation current

IDD

9

12

15

μA


Sensitive threshold

VSENS


100


μV


Detective wavelength

λ

5


14

um


outputs REL

output current low

IOL

10



mA

VOL<1V

outout current high

IOH

-10



mA

VOH>(VDD-1V)

Low REL output locking time

TOL


2


s

不可调

High REL output locking time

TOH


2


s


Oscillator and filter

LPF cutoff frequency




7

Hz


HPF cutoff frequency




0.44

Hz


On the chip oscillator frequency

FCLK



64

kHz


微信图片_20220922091418.jpg微信图片_20220922091332.jpg


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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.