OH017
GaAs hall element
Magnetic sensor
■ Features
●
Hall voltage : typ. 90mV(VC= 3V, B= 0.1T)
●
Input resistance : typ. 2kΩ(min. 1.5kΩ)
●
Output resistance : typ. 7kΩ
●
Low current dissipation type
●
Mini thin type (4-pin) package. A utomatic insertion thr ough taping
and magazine possible.
■ Applications
●
Various hall motor
(Applicable to CD, VD, VCR, FDD, and other portable equipment)
●
Applicable to wide-varying field (OA equipment, etc.)
■ Absolute Maximum Ratings (Ta= 25˚C)
Unit : mm
V
H
+
+ V
H
–
*1 VH =
2
*2 Output pin voltage at no-load (B= 0)
*3 The linearity γ of VH is a percentage of the cumulative sensitivity of K
H0.05
and K
H0.1
measured at B= 0.05T and 0.1T for the average value.
K
H0.1
– K
H0.05
V
H
γ = ( Percentage of the cumulative sensitivity KH =)
1/2 (K
H0.05
+ K
H0.1
) IC · B
Unit
mV
mV
kΩ
kΩ
%/˚C
%/˚C
%
Condition
V
C
= 3V, B= 0.1T
V
C
= 3V, B= 0T
I
C
= 0.1mA, B= 0T
I
C
= 0.1mA, B= 0T
I
C
=1.5mA, B= 0.1T
I
C
= 0.1mA, B= 0T
I
C
=1mA, B= 0.05T/0.1T
Symbol
V
H
*
1
VHO*
2
R
IN
R
OUT
β
α
γ ∗
3
■ Electrical Characteristics (Ta= 25˚C)
1 : VC Input
–
side
2 : VH Output
–
side
3 : VC Input
+
side
4 : VH Output
+
side
Mini Thin Type Package (4-pin)
Unit
V
mW
˚C
˚C
Parameter
Control voltage
Power dissipation
Operating ambient temperature
Storage temperature
Symbol
V
C
P
D
T
opr
T
stg
Rating
6
100
–10 to +125
– 55 to +125
Parameter
Hall voltage
Unbalance voltage
Input Resistance
Output resistance
Temperature coefficient of hall voltage
Temperature coefficient of input resistance
Linearity of hall voltage
min
70
1.5
5
typ
90
2
7
max
110
+ 9.5
3
10
– 0.06
0.3
2
Marking Symbol : D
GaAs Hall Elements MA111
0.3 max.
0.2 max.
1.45±0.050.6±0.05
0.26±0.05
2.85±0.25
1.45±0.05 0.8±0.1
0.9±0.05
23
4
1
0.6±0.1
5° 5°
PD – Ta RIN – TaVH – Ta
V
H
– B VH – V
C
VH – I
C
■ Typical Drive Circuit
GaAs Hall Elements OH017
+5V
+V
+5V
–5V
–V
–5V
42
3
1
+
–
Ambient temperature Ta (˚C
)
Power dissipation P
D
(
mW
)
0
40
80
120
160
200
180
140
100
60
20
02040 8060 140120100 160
– 40
Ambient temperature Ta (˚C
)
Hall voltage V
H
(
mV
)
0
0 40 80 120
40
80
120
160
200
240
B=0.1T
I
C
=1.5mA
Ambient temperature
Ta
(˚C)
Input resistance
R
IN
(Ω)
0
–40 0 40 80 120
2000
4000
3000
1000
B=0
I
C
=0.1mA
Magnetic flux density
B
(T)
Hall voltage
V
H
(
mV
)
VC=3V
Ta=25˚C
0
0 0.200.04 0.160.08 0.12
100
200
150
50
Control current
IC
(mA)
Hall voltage
V
H
(
mV
)
B=0.1T
Ta=25˚C
0
01 342
40
80
120
160
200
240
280
320
Control voltage
VC
(V)
Hall voltage
V
H
(
mV
)
B=0.1T
Ta=25˚C
0
02 6813574
40
80
120
160
200
240
280
320