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LT140A Datasheet

Hall Voltage 160mV Thin-Type Package GaAs Hall Device

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Hall Device
LT140A
LT140A
Hall Voltage 160mV Thin-Type Package GaAs Hall Device
s Features
¡Small temperature coefficient of the Hall voltage
¡Good linearity of the Hall voltage
¡Small imbalanced voltage
¡Directly DC voltage applicable
s Applications
¡Brushless motors
VCR, CD, CD-ROM, FDD
¡Measuring equipment
Gauss meters, magnetic substance detectors
¡Noncontact sensors
Microswitches, tape-end detection
¡Other magnetic detection
s Absolute Maximum Ratings
(Ta=25˚C)
Parameter
Control voltage
Control current
Power dissipation
Operating temperature
Storage temperature
Soldering temperature*1
Symbol
VC
IC
PD
Topr
Tstg
Tsol
Rating
12
15
150
-20 to +125
-55 to +150
260
Unit
V
mA
mW
˚C
˚C
˚C
*1 Soldering time : 10 seconds
s Outline Dimensions
(Unit : mm)
0.3 0.3
0.6
0.05±0.05
14
Silver Mark
23
0.3 0.3
0.9
1.45
1.40
Terminal connection
1 : + VC Input
2 : + VH Output
3 : - VC Input
4 : - VH Output
As for dimensions of tape-packaged products, refer to page 44 .
s Electrical Characteristics
Parameter
No-load Hall voltage *1
Imbalanced ratio *2
Input resistance
Output resistance
Rank A
Rank B
Rank C
Drift of imbalanced voltage vs. temperature
Temperature coefficient of Hall voltage
Temperature coefficient of input resistance
Linearity of Hall voltage
Symbol
VH
VHO/VH
RIN
ROUT
|VHO|
β
α
γ
Conditions
VC=6V, B=100mT
VC=6V,(B=0)/(B=100mT)
IM=1mA, B=0mT
IM=1mA, B=0mT
VC=6V, B=0mT, Ta=-20˚C to 25˚C
VC=6V, B=0mT, Ta=25˚C to 125˚C
IC=6mA, B=100mT, T1=-20˚C, T2=125˚C
IM=1mA, B=0mT, T1=-20˚C, T2=125˚C
IC=6mA, B1=50mT, B2=100mT
MIN.
145
2
-5
-2
650
1 300
-
-
-
-
*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.
VH=VM-VHO
β=
1
VH(T1) X
{VH(T2)-VH(T1)}
(T2-T1)
X100
α=
1
RIN(T1)
X
{RIN(T2)-RIN(T1)}
(T2-T1)
X100
γ=
{KH(B2)-KH(B1)}
{KH(B1)+KH(B2)}
X2X100,
KH=
VH
(ICXB)
VM:Observed Hall voltage
VHO:Imbalanced voltage
KH:Sensitivity
TYP.
160
-
-
-
800
1 600
5
-0.04
0.2
0.3
(Ta=25˚C)
MAX.
175
12
5
-12
950
1 900
Unit
mV
%
- mV
- %/˚C
- %/˚C
-%
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.


Sharp Electronic Components Datasheet

LT140A Datasheet

Hall Voltage 160mV Thin-Type Package GaAs Hall Device

No Preview Available !

Hall Device
Fig. 1 Hall Voltage vs. Ambient
Temperature
200
B=100mT
160 VC=6V
120 IC=6mA
80
40
0
-20 0
40 80 120
Ambient temperature Ta (˚C)
Fig. 3 Hall Voltage vs. Magnetic Flux
Density
2 000
1 600
VC=6V
Ta=25˚C
1 200
800
400
0
0 200 400 600 800 1 000
Magnetic flux density B (mT)
Fig. 5 Hall Voltage vs. Control Voltage
400
B=100mT
Ta=25˚C
320
240
160
80
0
0 4 8 12
Control voltage VC (V)
LT140A
Fig. 2 Input Resistance vs. Ambient
Temperature
2 000
1 600
B=0mT
IM=1mA
1 200
800
400
0
-20 0
40 80 120
Ambient temperature Ta (˚C)
Fig. 4 Hall Voltage vs. Control Current
400
B=100mT
Ta=25˚C
320
240
160
80
0
0 4 8 12
Control current IC (mA)
Fig. 6 Power Dissipation vs. Ambient
Temperature
200
160
120
80
40
0
0 40 80 120 160 200
Ambient temperature Ta (˚C)


Part Number LT140A
Description Hall Voltage 160mV Thin-Type Package GaAs Hall Device
Maker Sharp Electrionic Components
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