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BQ304 Quad Elements Type Passive Infrared Sensor from Senba Factory
BQ304 Quad Elements Type Passive Infrared Sensor from Senba Factory

BQ304 Quad Elements Type Passive Infrared Sensor from Senba Factory

Overview

Quad Elements  motions sensor is widly used for ceiling light, corridor. The product is a type of intelligent PIR sensor which integrates digital control.

Senba is the specialist PIR manufacturer for more than 15 years. We are the most advanced factory with complete categories. With strong R&D center, there are digital type and analog type, dual elements and four elements for you choose. The market cover domestic market, Korean, Amertica, Turkey and Europe. 


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Feature

Simplified Circuitry with Fully Integrated Sensor

Robust Design Against False Starts 


Technical Data

1. Maximum Ratings

Characteristics

Symbol

Min. Value

Max. Value

Unit

Remarks

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

2.2

3

2.7

V

IR=0.5mA

Working Current

IDD

9

9.5

11

μA


Sensitivity

VSENS


90


μA


Output REL

Output Low Current

IOL

10



mA

VOL<1V

Output High Current

IOH



-10

mA

VOL>(VDD-1V)

Lock time

TOL


2


s


On-time

TOH

2



s


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


Internal Diagram

BQ304_internal_diafram.jpg



Applications

Ceiling Light 

The PIR motion sensor adopts high-performance infrared detector. As long as human cross through its detection range, the infrared switch generates an electrical signals.

 

FAQ

1.How long do motion sensor lights stay on?

Most people set their motion detection lights so they will stay on for about one to two minutes.

 

2 . How do you ensure good product quality?

We have a complete quality control system; all of our products are fully checked by IQC, OQC departments before ship to our clients.

 


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FAQ
  • Is Wave Soldering Recommended?

    Wave soldering is likely to cause degradation of product performance. Wave soldering is not recommended. Generally we recommend to solder by hand.


  • 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.

  • 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.


  • What Is The Package?

    1. PIR sensor: Graphic Carton-> Carton

    2. LDR: plastic bag -> Graphic Carton -> Carton

    3. Fresnel Lens: plastic bag -> Carton


  • What are the Factors that Affect the Performance of the Product?

    1. When there is dirt on the window, it will affect the detection performance.

     

    2. When the ambient temperature and the human body temperature are close, the detection and sensitivity are significantly reduced, sometimes causing short-term failure. The recommended minimum temperature difference between the ambient temperature and the human body temperature needs to reach at least 4 ° C.

     

    3. When designing the circuit, pay attention to anti-interference measures to prevent false alarms caused by radio frequency interference.