OHS3150U Datasheet OHS3151U, OHS3150U | P1-P3

©TTelectronicsplc

IssueD01/2016Page1

1645WallaceDrive,Carrollton,TX75006|Ph:+19723232200

www.optekinc.com|www.electronics.com

GeneralNote

TTElectronicsreservestherighttomakechangesinproductspeciﬁcaon

withoutnoceorliability.AllinformaonissubjecttoTTElectronics’owndata

andisconsideredaccurateatme

ofgoingtoprint.

Ratiometric Linear Hall-Effect Sensor

OHS3150U, OHS3151U

Sensing and Control

Features:

 Raometriclinearoutputcapableofsinkingandsourcingcurrent

 4.5Vto6.0Voperaon

 Respondsequallytoposiveandnegavemagnecﬁelds

 Excellenttemperaturestabilitytooperateinharshenvironments

 Robustpackagecapableofwithstandingharshenvironments

Descripon:

Each ratiometric linear Hall-effect sensor contains a monolithic integrated circuit on a single chip. This circuit

incorporates a quadratic Hall sensing element, which minimizes the effects of mechanical and thermal stress on

the Hall element and temperature compensating circuitry to compensate for the inherent Hall element sensitivity

change over temperature current.



These ratiometric linear Hall-effect sensors provide an output voltage that varies in proportion to the applied

magnetic field. The voltage output will increase in response to a south pole (positive) magnetic field applied

perpendicular to the package symbolization face, and will decrease in response to a north pole (negative)

magnetic field.

These ratiometric linear Hall-effect sensors can be used as a non-contact sensor for rotary and linear position

sensing and for current sensing.



Applicaons:



Non‐contactmagnecsensing

 Assemblylineautomaon

 Machineautomaon

 Machinesafety

 Doorsensor

 Wheresensingisrequiredindirtyenvironments

Ordering Information

Through Hole Temp. Range V

Threshold

Change over T

= ±35 Gauss OHS3150U -40°C to +125°C

OHS3151U -40°C to +125°C V

Change over T

= ±50 Gauss

1Vcc

Output

Gnd

Vcc

Dual to

Single

Converter

Qual

Hall

Element

Voltage

Regulator

DIMENSIONS ARE IN:

INCHES

[MILLIMETERS]

RoHS

©TTelectronicsplc

IssueD01/2016Page2

1645WallaceDrive,Carrollton,TX75006|Ph:+19723232200

www.optekinc.com|www.electronics.com

GeneralNote

TTElectronicsreservestherighttomakechangesinproductspeciﬁcaon

withoutnoceorliability.AllinformaonissubjecttoTTElectronics’owndata

andisconsideredaccurateatme

ofgoingtoprint.

Ratiometric Linear Hall-Effect Sensor

OHS3150U, OHS3151U

Sensing and Control

SupplyVoltage,V

 6V

StorageTemperatureRange,T

 ‐65°Cto+150°C

OperangTemperatureRange,T

A

 ‐40°Cto+125°C

LeadSolderingTemperature(1/8inch[3.2mm]fromcasefor5secondswithsolderingiron) 260°C

(1)



PowerDissipaon,P

 100mW

OutputCurrent,I

 5mA

MagnecFluxDensity,B Unlimited

AbsoluteMaximumRangs

SYMBOL PARAMETER MIN TYP MAX UNITS TESTCONDITIONS

 SupplyVoltage 4.5 5.0 6.00 V

 SupplyCurrent5.5 10.00 mA Vcc =6V,I

=0mA,B=OG

OQ



QuiescentVoltageOutput 2.25 2.5 2.75 V B=OG,T

=25°C

2.10 2.5 2.90 V B=OG,T

=‐40°Cto+125°C

 SinkCurrent 0.5  mA

 SourceCurrent‐1.0  mA

ElectricalCharacteriscs(OverOperangTemperatureRangeatV

=5V,unlessotherwisenoted)



SYMBOL



PARAMETER

OHS3150U

UNITS

OHS3151U

UNITS

MIN TYP MAX MIN TYP MAX



Operang

TemperatureRange

‐40‐125 °C‐40‐125 °C

Sens

Sensivity

@T

A

=25°C

overT



2.25

2.0



2.5

‐



2.75

3.0



mV/G



2.25

2.0



2.5

‐



2.75

3.0



mV/G

∆V

(∆T)

Change

overT



‐ ‐ ±35 G‐‐±50 G

∆Sens(∆V)

RaometricSense

Change

‐ 100‐ %‐100‐ %

∆V

(∆V)

RaometricV



Change

‐ 100‐ %‐100‐ %

+Lin

PosiveLin≥25

<25

99

‐

105

110

%

99

‐

105

110

%

‐Lin

NegaveLin≥25

<25

95

90

‐

101

%

95

90

‐

101

%

Sym

OutputSymmetry

95 100

105 % 95 100 105 %

Note:

(1) Negavecurrentisdeﬁnedasacomingoutof(sourcing)theoutput.

(2) Seecharacteriscsdeﬁnionsfortestcondionsandcalculaonformulas.

©TTelectronicsplc

IssueD01/2016Page3

1645WallaceDrive,Carrollton,TX75006|Ph:+19723232200

www.optekinc.com|www.electronics.com

GeneralNote

TTElectronicsreservestherighttomakechangesinproductspeciﬁcaon

withoutnoceorliability.AllinformaonissubjecttoTTElectronics’owndata

andisconsideredaccurateatme

ofgoingtoprint.

Ratiometric Linear Hall-Effect Sensor

OHS3150U, OHS3151U

Sensing and Control

CharacteriscsDeﬁnions



QuiescentvoltageOutput:Withnomagnecﬁeldpresentthedeviceinthequiescentstateandthevoltageoutputisapproximately

equaltoone‐halfthesupplyvoltage(V

=V

/2)overtheoperangvoltageandtemperature

range.Thechangeinquiescentvoltageoutputovertemperaturegivesthedevice’sequivalent

accuracyandisspeciﬁedingaussbythecalculaon.

V

OQ(TA)

‐V

OQ(25°C)



ΔV



(T)

= ————————‐

Sens

(25°C)



 Sensivity:Amagnecsouthpoleat,andperpendicularto,thedevice’ssymbolizedpackagefacewillincrease

thevoltageoutputabovethequiescentvalue.Converselyamagnecnorthpolewilldecreasethe

voltageoutputbelowthequiescentvalue.Thischangeinvoltageoutputwithappliedmagnec

ﬁeldissensivityandisspeciﬁedinmV/Gbythecalculaon.

VO

(+500G)

‐V



(‐500G)



Sens= —————————————

1000

Thechangeissensivityovertemperatureisspeciﬁedinpercentbythecalculaon

Sens

(TA)

‐Sens

(25°C)



ΔSens

(ΔT)

= ———————————‐ X100%

Sens

(25°C)



 Raometry: ThequiescentvoltageoutputandsensivityoftheseraometriclinearHall‐eﬀectdevicesare

proporonaltothesupplyvoltage.Thechangeinquiescentvoltage outputwithsupplyvoltageis

speciﬁedinpercentbythecalculaon

V



(VCC)

‐V



(5V)



ΔV



(ΔV)

= —————————— X100%

V

/5V

Thischangeinsensivitywithsupplyvoltageisalsospeciﬁedinpercentbythecalculaon

V



(VCC)

/V



(5V)



ΔSens

(ΔV)

= —————————— X100%

V

/5V

 Linearity&Symmetry: Theabilityofthevoltageoutputtovaryinconstantproporontotheappliedmagnecﬁeldis

linearityandisspeciﬁedinpercentbythecalculaon

V



(+500G)‐

V



+Linearity



= —————————— X100%

2(V

O(250G)

‐V

)



V



(‐500G)‐

V



‐Linearity



= —————————— X100%

2(V

O(‐250G)

‐V

)



Theoutputisalsospeciﬁedinpercentbythecalculaon

V



(500G)‐

V



‐Linearity



= —————————— X100%

V

OQ

‐V

OQ(‐500G)



P1-P3 P4-P4

OHS3150U

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Description:

Magnetic Sensors Board Mount Hall Effect / Magnetic Sensors HALL EFFECT SENSOR

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