Hall Device
LT135A
Hall Voltage 240mV GaAs Hall Device
LT135A
(Unit : mm)
■ Features
■ Outline Dimensions
¡
¡
¡
¡
Small temperature coefficient of the Hall voltage
Good linearity of the Hall voltage
Small imbalanced voltage
2.7±0.3
Directly DC voltage applicable
1
2
4
3
■ Applications
N
¡
Brushless motors
VCR, CD, CD-ROM, FDD
¡
Measuring equipment
Gauss meters, magnetic substance detectors
4-R0.2
¡
Noncontact sensors
Microswitches, tape-end detection
¡
Other magnetic detection
0.6
1.5±0.2
0.6
Terminal connection
1:V
2:V
3:V
4:V
C
H
C
H
Input
Output
Input
■ Absolute Maximum Ratings
(T
a
=25˚C)
Unit
Output
Parameter
Control voltage
Symbol
Rating
12
V
C
V
mA
mW
˚C
˚C
˚C
Control current
I
C
15
Power dissipation
P
D
150
Operating temperature
Storage temperature
Soldering temperature*1
T
T
T
opr
-20 to +125
-55 to +150
260
As for dimensions of tape-packaged products, refer to page 44 .
stg
sol
*1
Soldering time : 10 seconds
■ Electrical Characteristics
(T
a=25˚C)
Parameter
Symbol
Conditions
=6V, B=100mT
=6V, B=0mT
=1mA, B=0mT
=1mA, B=0mT
MIN
200
-15
650
1 300
TYP.
240
-
800
1 600
MAX.
280
15
950
1 900
Unit
mV
mV
Ω
No-load Hall voltage *1
V
H
V
V
C
C
*2
Imbalanced voltage
V
HO
IN
OUT
Input resistance
Output resistance
R
R
I
I
M
M
Ω
V
V
C
=6V, B=0mT, T
=6V, B=0mT, T
a
a
=-20˚C to 25˚C
=25˚C to 125˚C
Drift of imbalanced voltage vs. temperature
|∆VHO
|
-
5
-
mV
C
Temperature coefficient of Hall voltage
Temperature coefficient of input resistance
Linearity of Hall voltage
β
α
γ
I
I
C
=6mA, B=100mT, T
=1mA, B=0mT, T
1
=-20˚C, T =125˚C
2
-
-
-
-0.03
0.2
2
-
-
-
%/˚C
%/˚C
%
M
1
=-20˚C, T2=125˚C
IC=6mA, B1=50mT, B2=100mT
*1 No-load Hall voltage is nearly proportional to Vc (within the range of 1 to 6V) at temperatures of -20˚C to + 125˚C.
Keep the voltage within the allowable power dissipation range.
*2 Imbalanced ratio is in +/-12% within the range of Vc=1 to 6V.
V
H
=VM
-VHO
1
{V
H
(T
(T
{RIN(T
(T
)}
)}
2
)-V
H
(T1)}
β=
α=
X100
X100
V
M
:Observed Hall voltage
HO:Imbalanced voltage
:Sensitivity
X
V
H
(T
1
1
)
2
-T
1
)
2)-RIN(T
1)}
X
V
R
IN(T
1
)
2
-T
1)
{K
{K
H
(B
(B
2
)-K
)+K
H
(B
1
V
H
X2X100,
γ=
K
H
=
K
H
H
1
H
(B
2
(IC
XB)
In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP devices
shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device spcification sheets before using any SHARP device.