PANASONIC OH023

MA111
GaAs Hall Elements
OH023
GaAs hall element
Unit : mm
+0.2
Magnetic sensor
2.8 –0.3
+0.2
1.5 –0.3
0.65±0.15
■ Features
0.65±0.15
Output resistance : typ. 7kΩ(max. 10kΩ)
●
Sealed in the Mini type (4-pin) package. Automatic insertion through
3
2
+0.1
●
0.8
1.1 –0.1
+0.2
+0.1
0.16 –0.06
taping and magazine.
■ Applications
0 to 0.1
0.4±0.2
●
Various hall motor
(Applicable to CD, VD, VCR, FDD, and other portable equipment)
●
0.4 –0.05
Input resistance : typ. 2kΩ(min. 1.5kΩ)
0.95
●
1
0.95
Hall voltage : typ. 90mV(VC= 3V, B= 0.1T)
2.9±0.2
●
1.9±0.2
0.5R
4
1 : VH Output – side
– side
2 : VC Input
3 : VH Output + side
+ side
4 : VC Input
Mini Type Package (4-pin)
Applicable to wide-varying field (OA equipment, etc.)
Marking Symbol : OT
■ Absolute Maximum Ratings (Ta= 25˚C)
Symbol
Rating
Control voltage
Parameter
VC
6
Power dissipation
PD
150
Operating ambient temperature
Topr
–10 to +125
˚C
Storage temperature
Tstg
– 55 to +125
˚C
Unit
V
mW
■ Electrical Characteristics (Ta= 25˚C)
Parameter
Symbol
*1
Condition
min
typ
70
90
max
Unit
Hall voltage
VH
Unbalance voltage
VHO
VC= 3V, B= 0T
Input Resistance
RIN
IC= 0.1mA, B= 0T
1.5
Output resistance
ROUT
IC= 0.1mA, B= 0T
5
Temperature coefficient of hall voltage
β
IC=1.5mA, B= 0.1T
– 0.06
%/˚C
Temperature coefficient of input resistance
α
IC= 0.1mA, B= 0T
0.3
%/˚C
Linearity of hall voltage
*1 VH =
 VH
+
+  VH
γ
∗2
VC= 3V, B= 0.1T
IC=1mA, B= 0.05T/0.1T
110
mV
±9.5
mV
2
3
kΩ
7
10
kΩ
2
–
2
*2 The linearity γ of VH is a percentage of the cumulative sensitivity of KH0.05 and KH0.1 measured at B= 0.05T and 0.1T for the average value.
KH0.1 – KH0.05
VH
γ=
( Percentage of the cumulative sensitivity KH =
)
1/2 (KH0.05 + KH0.1)
IC · B
%
OH023
GaAs Hall Elements
PD – Ta
VH – Ta
RIN – Ta
240
200
4000
180
(mV)
160
VH
(mW)
PD
100
Hall voltage
Power dissipation
120
Input resistance RIN (Ω)
200
160
140
B=0
IC=0.1mA
B=0.1T
IC=1.5mA
80
60
40
120
80
3000
2000
1000
40
20
0
0
0
20
40
60
0
80 100 120 140 160
Ambient temperature
Ta
– 40
(˚C)
0
Ambient temperature
VH – B
80
120
–40
(˚C)
Ta
0
200
160
120
0.08
0.12
0.16
0.20
40
0
1
2
3
4
■ Typical Drive Circuit
+5V
+5V
4
–
1
+
2
–5V
–5V
120
40
Control current IC (mA)
3
160
80
0
Magnetic flux density B (T)
200
80
0
0.04
B=0.1T
Ta=25˚C
240
Hall voltage VH (mV)
Hall voltage VH (mV)
50
120
280
240
100
80
320
B=0.1T
Ta=25˚C
280
150
40
VH – VC
320
VC=3V
Ta=25˚C
0
0
Ambient temperature Ta (˚C)
VH – IC
200
Hall voltage VH (mV)
40
–V
+V
0
1
2
3
4
5
6
Control voltage VC (V)
7
8