LT140SA Datasheet, PDF (1/2 Pages) Sharp Electrionic Components – Hall Voltage 160mV Thin-Type Package GaAs Hall Device

Hall Device
LT140SA
LT140SA
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 Outline Dimensions
0.3
0.3
(Unit : mm)
0.6
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
1
4
Silver Mark
2
3
0.3
0.3
0.9
1.45
1.40
0.14+0.1
-0.04
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
Rank A
Rank B
Rank C
Symbol
VH
VHO/VH
Conditions
VC=6V,B=100mT
VC=6V, (B=0)/(B=100mT)
MIN.
145
2
-5
-2
Input resistance
Output resistance
RIN
ROUT
IM=1mA, B=0mT
IM=1mA, B=0mT
650
1 300
Drift of imbalanced voltage vs. temperature
|∆VHO|
VC=6V, B=0mT, Ta=-20˚C to 25˚C
VC=6V, B=0mT, Ta=25˚C to 125˚C
-
Temperature coefficient of Hall voltage
β
IC=6mA, B=100mT, T1=-20˚C, T2=125˚C
-
Temperature coefficient of input resistance
α
IM=1mA, B=0mT, T1=-20˚C, T2=125˚C
-
Linearity of Hall voltage
γ
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.
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. Unit
175
mV
12
5
%
-12
950
Ω
1 900
Ω
-
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.