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OPTEK Technologies
OPTEK Technologies


OHN3150U

Ratiometric Linear Hall-effect Sensor



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OHN3150U pdf
Ratiometric Linear Hall-effect Sensor
OHN3150U, OHN3151U, OHS3150U, OHS3151U
Features:
Ratiometric linear output capable of sinking and sourcing current
4.5 V to 6.0 V operation
Responds equally to positive and negative magnetic fields
Excellent temperature stability to operate in harsh environments
Robust package capable of withstanding harsh environments
Product Photo Here
Description:
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 3150U & 3151U ratiometric linear Hall-effect sensors can be used as a non-contact sensor for rotary and
linear position sensing and for current sensing. The devices in this series are similar in performance, except for
their allowable quiescent voltage output change over the specified operating temperature range.
Applications:
Non-Contact Magnetic Sensing
Assembly LIne Automation
Machine Automation
Machine Safety
Door Sensor
Where sensing is required in dirty environments
Qual
Hall
Element
Voltage
Regulator
Dual to
Single
Converter
1 Vcc
Vcc
3
Output
2 Gnd
OHN3150U
OHS3150U
OHN3151U
OHS3151U
Ordering Information
-20°C to +85°C
-40°C to +150°C VOQ Change over TA = ±35 Gauss
-20°C to +85°C
-40°C to +150°C VOQ Change over TA = ±50 Gauss
RoHS
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747
FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Issue A 06/05
Page 1 of 4



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OHN3150U pdf
Ratiometric Linear Hall-effect Sensor
Emitting Diode
OHN3150U, OHN3151U, OHS3150U, OHS3151U
Absolute Maximum Ratings
Supply Voltage, Vcc
Storage Temperature Range, TS
Operating Temperature Range, TA (OHS prefix)
(OHN prefix)
Lead Soldering Temperature (1/8 in. (3.2 mm) from case for 5 sec. with soldering iron).
Power Dissipation, PD
Output Current, IO
Magnetic Flux Density, B
6V
-65°C to +170°C
-40°C to +150°C
-20°C to +85°C
260°C(1)
100 mW
5 mA
Unlimited
Electrical Characteristics (Over Operating Temperature Range, at Vcc = 5 V, unless otherwise noted)
SYMBOL
VCC
ICC
VOQ
PARAMETER
Supply Voltage
Supply Current
Quiescent Voltage Output
IO Sink Current
IO Source Current
MIN
4.5
2.25
2.10
0.5
-1.0
TYP MAX UNITS
TEST CONDITIONS
5.0 6.0
V
5.5 10 mA Vcc = 6 V, IO = 0 mA, B = OG
2.5 2.75 V B = OG, TA = 25° C
2.5 2.90 V B = OG, TA = -40°C to +150°C
mA
mA
SYMBOL
PARAMETER
OHS3150U
OHS3151U
OHN3150U
OHN3151U
UNITS
MIN TYP MAX MIN TYP MAX MIN TYP MAX MIN TYP MAX
Operating
TA Temperature
Range
-40 - 150 -40 - 150 -20 - 85 -20 - 85 ° C
Sens
Sensitivity
@ TA = 25° C
over TA
2.25 2.5 2.75 2.25 2.5 2.75 2.25 2.5 2.75 2.25 2.5 2.75 mV/G
2.0 - 3.0 2.0 - 3.0 2.0 - 3.0 2.0 - 3.0 mV/G
Sens Change
Sens(T) @ TA > 25° C
@ TA < 25° C
-2 -
-10 -
8 -2 -
0 -10 -
8 -2 -
0 -10 -
8 -2 -
0 -10 -
8
0
%
%
VOQ(T)
VOQ Change
over TA
- - ±35 -
- ±50 -
- ±35 -
- ±50 G
Sens(V)
Ratiometric Sense
Change
-
100
-
- 100 -
- 100 -
- 100 -
%
VOQ(V)
Ratiometric VOQ
Change
- 100 -
- 100 -
- 100 -
- 100 -
%
+Lin
Positive Lin 25
< 25
99
99
- 105 99
- 110 99
- 105 99
- 110 99
- 105 99
- 110 99
- 105
- 110
%
-Lin
Negative Lin 25 95
< 25 90
- 101 95
- 101 90
- 101 95
- 101 90
- 101 95
- 101 90
- 101
- 101
%
Sym Output Symmetry 95 100 105 95 100 105 95 100 105 95 100 105 %
Note:
(1)
(2)
Negative current is defined a coming out of (sourcing) the output.
See characteristics definitions for test conditions and calculation formulas.
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue A 06/05
Page 2 of 4
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747
FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com



Part Number OHN3150U
Description Ratiometric Linear Hall-effect Sensor
Maker OPTEK Technologies - OPTEK Technologies
Total Page 4 Pages
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