Sensing and Control
Ratiometric Linear Hall-Effect Sensor
OHS3150U, OHS3151U
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.
Ordering Information
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
Through Hole
Temp. Range
VOQ Threshold
OHS3150U
-40°C to +125°C VOQ Change over TA = ±35 Gauss
OHS3151U
-40°C to +125°C VOQ Change over TA = ±50 Gauss
1 Vcc
Voltage
Regulator
Qual
Hall
Element
Dual to
Single
Converter
Vcc
3
Output
2 Gnd
DIMENSIONS ARE IN:
[MILLIMETERS]
INCHES
RoHS
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.
© TT electronics plc
1645 Wallace Drive, Carrollton, TX 75006|Ph: +1 972 323 2200
www.optekinc.com | www. electronics.com
Issue D 01/2016 Page 1
Sensing and Control
Ratiometric Linear Hall-Effect Sensor
OHS3150U, OHS3151U
Absolute Maximum Ra ngs
Supply Voltage, VCC
6 V
Storage Temperature Range, TS
‐65°C to +150° C
Opera ng Temperature Range, TA
‐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, PD
100 mW
Output Current, IO
5 mA
Magne c Flux Density, B
Unlimited
Electrical Characteris cs (Over Opera ng Temperature Range at VCC = 5 V, unless otherwise noted)
SYMBOL
PARAMETER
MIN
TYP
MAX
UNITS
TEST CONDITIONS
VCC
Supply Voltage
4.5
5.0
6.00
V
ICC
Supply Current
5.5
10.00
mA
2.25
2.5
2.75
V
B = OG, TA = 25° C
2.10
2.5
2.90
V
B = OG, TA = ‐40°C to +125°C
VOQ
Quiescent Voltage Output
Vcc = 6 V, IO = 0 mA, B = OG
IO
Sink Current
0.5
mA
IO
Source Current
‐1.0
mA
SYMBOL
PARAMETER
TA
OHS3150U
MIN
TYP
MAX
Opera ng
Temperature Range
‐40
‐
125
Sens
Sensi vity
@ TA = 25° C
over TA
2.25
2.0
2.5
‐
∆VOQ(∆T)
VOQ Change
over TA
‐
ometric Sense
∆Sens(∆V) Ra
Change
UNITS
OHS3151U
UNITS
MIN
TYP
MAX
° C
‐40
‐
125
° C
2.75
3.0
mV/G
mV/G
2.25
2.0
2.5
‐
2.75
3.0
mV/G
mV/G
‐
±35
G
‐
‐
±50
G
‐
100
‐
%
‐
100
‐
%
∆VOQ(∆V)
Ra ometric VOQ
Change
‐
100
‐
%
‐
100
‐
%
+Lin
Posi ve Lin ≥ 25
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