OHHALLSENSOR OH49F-S Linear hall-effect ic Datasheet

OH49
F-S
OH49F-S
LINEAR HALL-EFFECT IC
Order information
PN
OH49F-S
Operating
Temperature
-40~105℃
Package
SOT23
3000pcs/reel
General Description
The OH49F-S is a small, versatile linear Hall-effectdevice that is operated by the magnetic
field from a permanent magnet or an electromagnet. The output voltage is set by the
supply voltage and varies in proportion to the strength of the magnetic field.
The integrated circuitry features low noise output, which makes it unnecessary to use
external filtering. It also includes precision resistors to provide increased temperature
stability and accuracy. The operating temperature range of these linear Hall sensors is
-40℃ to105℃, appropriate for commercial, consumer and industrial applications.
Features
· Miniature Construction
· Power Consumption of 3mA at VCC=5V for Energy Efficiency
· Single Current Sourcing Output
· Linear Output for Circuit Design Flexibility
· Low Noise Output Virtually Eliminates the Need for Filtering
· A Stable and Accurate Output
· Temperature Range of -40℃ to 105℃
· Responds to Either Positive or Negative Gauss
· The Maximum Instantaneous Supply Voltage up to 50V
· HIgh ESD Rating: Human Body Model: 6000V, Machine Model: 600V
Typical applications
Functional Block Diagram
· Current Sensing
· Motor Control
· Position Sensing
· Magnetic Code Reading
· Ferrous Metal Detector
· Vibration Sensing
· Liquid Level Sensing
· Weight Sensing
Nanjing Ouzhuo Technology co., Ltd
Tel:86-25-52312738,86-25-83247886
Page 1
www.ohhall.com
FAX: 86-25-52312738
www.zbling.com
E-mail: [email protected]
OH49
F-S
OH49F-S
LINEAR HALL-EFFECT IC
Absolute Maximum Rating
Supply Voltage
Instantaneous Supply Voltage
Operating Temperature Range
Storage Temperature Range
VCC·························10V
VCC_INST···························. 50V
TA······················· -40~125℃
TS ·························-50~150℃
ESD (Human Body Model)
6000V
ESD(Machine Model)
600V
Note: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent
damage to the device. These are stress ratings only, and functional operation of the device at these or
any other conditions beyond those indicated under "Recommended Operating Conditions" is not implied.
Exposure to "Absolute Maximum Ratings" for extendedperiods may affect device reliability.
Recommended Operating Conditions
Supply Voltage
Operating Temperature Range
Nanjing Ouzhuo Technology co., Ltd
Tel:86-25-52312738,86-25-83247886
VCC·························3-8V
TA······················· -40~105℃
Page 2
www.ohhall.com
FAX: 86-25-52312738
www.zbling.com
E-mail: [email protected]
OH49
F-S
OH49F-S
LINEAR HALL-EFFECT IC
Electrical & Magnetic Characteristics (TA=25℃,Vcc=5.0V)
Parameter
Symbol
Supply Current
Icc
Quiescent Output
Voltage
VNULL
Output Voltage
Sensitivity
S
Output Voltage Span
VOS
Output Resistor
RO
Magnetic Field Range
B
Conditions
Min
Typ
Max
Unit
2
3
4
mA
@ B=0GS
2.25
2.5
2.75
V
B=0GS to
±600GS
1.7
2.1
2.5
mV/GS
1.0 to
(VCC-1.0)
0.8 to
(VCC-0.8)
60
±500
Linearity of Span
Output Noise
BW=10Hz
to 10kHz
V
120
Ω
±800
GS
0.7
%
90
μV
Transfer Characteristics (VCC=5V)
When there is no ouside magnetic field (B=0GS),
the quiescent output voltage is one-half the supply
voltage in general. If a south magnetic pole
approches to the front face (the side with marking
ID) of the Hall effect sensor, the circuit will drive
the output voltage higher. Contrary, a north
magnetic pole will drive the output voltage lower.
The variations of voltage level up or down are
symmetrical. Greatest magnetic sensitivity is
obtained with a supply voltage of 6V, but at the cost of increased supply current and a
slight loss of output symmetry. So, it is not recommended to work in such condition unless
the output voltage magnitude is a main issue. The output signal can be capacitively
coupled to an amplifier for boosting further if the changing frequency of the magnetic field
is high.
Nanjing Ouzhuo Technology co., Ltd
Tel:86-25-52312738,86-25-83247886
Page 3
www.ohhall.com
FAX: 86-25-52312738
www.zbling.com
E-mail: [email protected]
OH49
F-S
OH49F-S
LINEAR HALL-EFFECT IC
Package
(unit :mm)
Nanjing Ouzhuo Technology co., Ltd
Tel:86-25-52312738,86-25-83247886
Page 4
www.ohhall.com
FAX: 86-25-52312738
www.zbling.com
E-mail: [email protected]
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