Senba Sensing Technology Co., Ltd.
Long Distance 12M Detector Sensor HM412 From Senba Factory
Long Distance 12M Detector Sensor HM412 From Senba Factory

Long Distance 12M Detector Sensor HM412 From Senba Factory

Overview

PIR sensors allow you to sense motion, almost always used to detect whether a human has moved in or out of the sensors range. They are small, inexpensive, low-power, easy to use and don't wear out. For that reason they are commonly found in appliances and gadgets used in homes or businesses. They are often referred to as PIR, "Passive Infrared", "Pyroelectric", or "IR motion" sensors.


Feature

  • Higher in cost-performance

  • Long range

  • Wide angle


Technical Data

1.Maximum Ratings

Characteristics

Symbol

Min. Value

Max. Value

Unit

Remarks

Working Temperature

TST

-20

85


Max.current

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

3.7

V

IR=0.5mA

Working Current

IDD

9

9.5

11

μA


Sensitivity threshold value

VSENS


80


μV


Output REL

Output Low Current

IOL

10



mA

VOL<1V

Output High Current

IOH



-10

mA

VOL>(VDD-1V)

Output Low current Lock time

TOL


2


s

Non-adjustable

Output High current Lock time

TOH

2


3600

s


Input SENS/ONTIME

Voltage Input Range


0


VDD/2

V

0V to  VDD/2

Input Bias Current


-1


1

μA


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

HM412 Interior Block Diagram.jpg


Applications

  • Wireless Devices/Mobile Equipment

  • Wireless occupancy sensors (powered by PV cells or battery)

  • PC and smart phones

  • Commercial & residential lighting fixtures

  • Video intercoms

  • Vending machines

  • Home automation

 

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.Do motion sensors save electricity?

Motion sensing switches do have some &ldquo;phantom&rdquo; energy use. According to this study, motion sensor switches use about a watt of energy on standby mode (23 hours a day) and 5 watts on active mode (about an hour a day). This trims a bit off of your overall savings.

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