MT4103 Series
Uni-polar, Hall-Effect Magnetic Position Sensors
Features and Benefits
Bipolar Technology
Magnetic Type: Uni-polar
Wide Operating Voltage Range:
Supply Voltage 3.8~30V
Specified Operating Temperature Range:
From –40 ~150
Magnetic Sensitivity
Bop=150Gauss, Brp=100Gauss (typical)
Lead Free Package
Flat TO-92, SOT-23, SOT-89B
Open Collector Output
RoHS Compliant
2011/65/EU
Applications
Automotive, Home appliances, Industrial
Speed Detection
Position Detection
Magnetic Encoder
Solid-State Switch
Proximity Switch
Family Members
Part number
MT4103A
MT4103A-T
MT4103AT
MT4103BT
MT4103ET
Description
Flat TO-92 package, bulk packaging (1000pcs /bag)
Flat TO-92 package, Radial lead, bulk packaging (1000pcs/bag)
SOT-23 package, tape and reel packaging (3000pcs/bag)
SOT-89B package, tape and reel packaging (1000pcs/bag)
SOT-23(thin outline) package, tape and ree l packaging (3000pcs/bag)
General Description
The MT4103 family, produced with Bipolar technology, The Hall IC internally includes an on-chip Hall
voltage generator, a voltage regulator for operation with supply voltages of 3.8 to 30V, reverse protection
diode, temperature compensation circuitry, small-signal amplifier, Schmitt trigger and an open-collector
output.
They are designed to respond to a single pole: North (AT) or South (A, BT and ET). While the magnetic
flux density(B) is larger than operate point (Bop), the output will be turned on (Low), while the magnetic
flux density(B) is lower than release point (Brp), then turn off (High).
The MT4103 family provides a variety of packages to customers: SOT-23/SOT-89B for surface mount and
TO-92 flat for through-hole mount. All packages are RoHS compliant.
www.magntek.de
Rev.4 09/2012
℃
℃
01/10
MT4103 Series
Uni-polar, Hall-Effect Magnetic Position Sensors
Vs
Regulator
VOUT
Hall
Element
Amp
GND
Functional Block Diagram
Function Description
Definition of Magnetic Parameters
BOP:
Operating Point
Magnetic flux density applied on the branded side of the package which
turns the output driver ON (V
OUT
= Low)
Release Point
Magnetic flux density applied on the branded side of the package which
turns the output driver OFF (V
OUT
= high)
BRP:
BHYST: Hysteresis Window
BOP-BRP
Definition of Switching Function
Output (V)
Output (V)
North Pole
B
OP
B
RP
0
0
B
RP
B
OP
South Pole
Switching Behavior of AT
Switching Behavior of A, BT and ET
www.magntek.de
Rev.4 09/2012
02/10
MT4103 Series
Uni-polar, Hall-Effect Magnetic Position Sensors
N
Motion
N
S
S
OUT=Low
OUT=High
OUT=Low
OUT=High
Switching Point of AT
Switching Point of A
S
S
Motion
S
S
OUT=Low
OUT=High
OUT=Low
OUT=High
Switching Point of BT
Direction of magnetic flux
Switching Point of ET
Note:
Pin Description
MT4103AT
Name
Vs
GND
Output
Number
1
3
2
Description
Power
Ground
Open-Collector output
MT4103A (MT4103A-T)
Name
Vs
GND
Output
Number
1
2
3
Description
Power
Ground
Open-Collector output
MT4103ET
Name
Vs
GND
Output
Number
1
3
2
Description
Power
Ground
Open-Collector output
MT4103BT
Name
Vs
GND
Output
Number
1
2
3
Description
Power
Ground
Open-Collector output
www.magntek.de
Rev.4 09/2012
03/10
MT4103 Series
Uni-polar, Hall-Effect Magnetic Position Sensors
Electrical and Magnetic Characteristics
Absolute Maximum Ratings
Absolute maximum ratings are limiting values to be applied individually, and beyond which the serviceability of the
circuit may be impaired. Functional operability is not necessarily implied. Exposure to absolute maximum rating
conditions for an extended period of time may affect device reliability.
Absolute maximum ratings: all voltages listed are referenced to GND.
Symbol
V
S
V
RCC
V
OUT
I
OUT
T
A
T
s
T
J
B
Parameters
Supply Voltage
Reverse Battery Voltage
Output Voltage
Continuous output current
Operating Ambient Temperature
Storage temperature
Junction temperature
Magnetic flux
Min
-
-
-
-
-40
-50
-
No Limit
Max
40
-40
40
50
150
150
165
Units
V
V
V
mA
Gauss
MT4103 Series Specifications
Symbol
V
S
I
S
V
SON
I
OFF
T
R
T
F
F
SW
Parameter
Supply Voltage
Supply Current
Output Saturation Voltage
Output Leakage Current
Output Rise Time
Output Fall Time
Maximum Switching Frequency
SOT-23 Package Thermal Resistance
R
TH
TO-92 Package Thermal Resistance
SOT-89B Package Thermal Resistance
B
OP
B
RP
B
HYST
Magnetic Operating Point
Magnetic Release Point
-
-
90
70
230
230
150
100
50
-
-
230
150
80
Gauss
Gauss
Gauss
www.magntek.de
Rev.4 09/2012
04/10
∣
∣
∣
∣
∣
Hysteresis Window
B
OP
-B
RP
20
℃
℃
℃
℃
℃
at T
A
= -40
to 150
, Vs = 3.8V to 30V (unless otherwise specified)
Test Condition
Operating
B<B
RP
I
OUT
=20mA, B>B
OP
B<B
RP
, V
OUT
=30V
R
L
=1KOhm, C
L
=20pF
R
L
=1KOhm, C
L
=20pF
Min
3.8
-
-
-
-
-
-
-
Typ
-
4
-
-
-
-
-
301
Max
30
10
0.4
10
1.5
1.5
100
-
Units
V
mA
V
uA
uS
uS
KHz
/W
/W
/W
℃
℃
℃
MT4103 Series
Uni-polar, Hall-Effect Magnetic Position Sensors
Typical Application Circuit
Note: R
L
recommend 1Kohm to 10Kohm
MT4103
Typical Output Waveform
(The TO-92 package as an example )
B
B
OP
Magnetic Field
B
RP
T
V
High
Digital Output
Low
T
www.magntek.de
Rev.4 09/2012
05/10
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