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G-MRCO-021

P1-P3P4-P6P7-P7
SENSOR SOLUTIONS /// KMT36H 360° Rev 5 1/2016
Page 1
KMT36H 360°
Magnetic Angle Sensor
SPECIFICATIONS
AMR Sensor with 360° capability
TDFN outline 2.5x2.5x0.75 mm
3
Three 120° phase-shifted signals
Moderate field strength requirements
The KMT36H is a magnetic field sensor utilizing the anisotropic
magneto resistance effect. Therefore the sensor is sensing the
magnetic field direction rather than the magnetic field strength.
The sensor contains three Wheatstone bridges rotated by 120°. A
rotating magnetic field (typical strength 25 kA/m in the sensor
plane) will result in three sinusoidal output signals with a period of
180°, phase shifted by 60° field angle. By use of a modified atan
algorithm the field angle can be calculated with high accuracy.
As an unique feature, the KMT36H is able to measure full 360° by
utilizing an additional magnetic field which is generated by a planar
coil that is integrated on the chip. The 180°/360° determination is
done by a simple sign distinction and may be computed periodically
or only once at power up.
FEATURES
Ideal for harsh environments due to
magnetic sensing principle
Contactless absolute angular measurement
over 360°
Accuracy better than +/- 0.5°
Three bridge signals with 120° phase
difference
Tiny TDFN-housing 2.5 x 2.5 x 0.8 mm3
APPLICATIONS
Absolute angle measurement
Potentiometer replacement
Motor motion control
Camera positioning
Robotics
KMT36H 360°
Angular Sensor
SENSOR SOLUTIONS /// KMT36H 360° Rev 5 1/2016
Page 2
CHARACTERISTIC VALUES
Parameter
Symbol
Min
Typ
Max
Unit
Mechanical dimensions - TDFN
Length
X
2.5
mm
Width
Y
2.5
mm
Height
Z
0.75
mm
Mechanical dimensions - SO8
Length
X
4.9
mm
Width
Y
6.0
mm
Height
Z
1.75
mm
Operating limits
Supply voltage
V
CC
5
12
V
Coil current
I
COIL
20
50
mA
Operating temperature
-40
+125
°C
Storage temperature
-40
+125
°C
Parameter
Condition
Symbol
Min
Typ
Max
Unit
Sensor specification
Applied magnetic field
2), 3)
H
15
25
60
kA/m
Bridge resistance
T = 25 °C
R
B
2.4
3.0
3.6
k
max. signal range
T = 25 °C, H = 25 kA/m
V/V
CC
18
22
26
mV/V
Offset voltage 4)
T = 25 °C
V
OFF
/V
CC
-3
+3
mV/V
Hysteresis 1) (Repeatability)
H = 25 kA/m
Hyst
0.15
0.30
deg
Accuracy 1)
H = 25 kA/m

0.15
0.30
deg
TC of amplitude
H = 25 kA/m, 5)
TC
AMP
-0.35
%/K
TC of bridge resistance
5)
TC
R
+0.35
%/K
Coil resistance
T = 25 °C
R
COIL
75
100
150

Thermal resistance (junction-
ambient)
T
amb
= 25°C, 6)
R
thJ/A
280
K/W
1) Hysteresis and accuracy are depending nearly inversely proportional on the magnetic field strength. The accuracy is defined as the max.
angular difference between actual field angle and measured angle calculated from the third and fifth harmonics of the Fourier spectrum. The
hysteresis is defined as angular difference between left and right turn.
2) Generated with reference magnet 67.044 Magnetfabrik Bonn (25 kA/m @ 5.2 mm distance).
3) Minimum value depends on decreasing accuracy, upper limit on decreasing coil influence. Both are no absolute limits, but depend on the
given application requirements.
4) Offset voltages measured as difference voltages V
O1
-V
O2
, V
O2
-V
O3
and V
O3
-V
O1
in relation to V
CC
.
5) Reference temperature Tref = -25 °C, calculated from values at -25°C and +125 °C
6) TDFN soldered on standard test PCB, heat sink without solder connection
KMT36H 360°
Angular Sensor
SENSOR SOLUTIONS /// KMT36H 360° Rev 5 1/2016
Page 3
BLOCK DIAGRAM
Figure 1: internal and external connections (TDFN and SO8, Chip)
SENSOR OUTLINE
Figure 2: SO8 outline
V
O1
V
O3
V
O2
V
CC
GND
n. c.
V
COIL
-
V
COIL
+
1
5
8
4
The sensitive area is
positioned in the center
of the housing.
P1-P3P4-P6P7-P7

G-MRCO-021

Mfr. #:
Buy G-MRCO-021
Manufacturer:
TE Connectivity
Description:
Magnetic Sensors Board Mount Hall Effect / Magnetic Sensors AMR field dir sens Angular 360Degree
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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