Hall IC
LT251A
LT251A
2.9鹵0.2
1.9
GaAs Hall IC for Noncontact Swich
(Unidirectional magnetic field-type)
(Unit : mm)
2
0.4
3
0.4
0.95
s
Features
s
Outline Dimensions
2.7鹵0.3
隆Operation
by small magnet due to high sensitivity Operating
point<30mT
Y
隆Combining
a GaAs Hall device and an IC in a compact
1
4
package (2.9X1.5X1.1mm)
隆Wide
operation temperature range obtained by GaAs Hall
device (-20 to +125藲C)
隆Long
life time due to noncontact-type
0.4
0.6
0.85
S
Z
X
s
Applications
隆FDD
隆HDD
隆Water
meter
隆Car
stereo
隆Microswitch,
etc.
0.16
+0.10
-0.06
+0.2
1.1
-0.1
0.8
4-R0.2
Hall device center line
X : +0.05鹵0.23mm against package center
Y : -0.05鹵0.1mm against package lead center between
No.2 and No.3 terminals
Z : 0.81鹵0.15mm from package surface
Terminal connections
1.5鹵0.2
0.6
0.6
REG
Hall
+
device
H
0.3
-
s
Absolute Maximum Ratings
Parameter
Supply voltage
Output voltage
Output current
Power dissipation
Operating temperature
Storage temperature
Soldering temperature
*1
*1 Soldering time : within 10 seconds
(T
a
=25藲C)
Unit
V
V
mA
mW
藲C
藲C
藲C
Symbol
Rating
V
CC
18
V
OUT
18
I
O
5
P
D
100
T
opr
-20 to +125
-55 to +150
T
stg
260
T
sol
1 : V
CC
2 : V
OUT
3 : Don't use.
*No.3 terminal and the section of leads (both sides
4 : GND
of package in X direction) are connected with the
terminal of internal IC. Be careful in connecting other circuits.
As for dimensions of tape-packaged products, refer to page 44 .
s
Operating Explanation
Output voltage
<Unidirectional magnetic field-type>
0
B
RP
B
OP
(0to0.15)
+B
Magnetic flux density
s
Electrical Characteristics
Parameter
Operating magnetic flux density
Hysteresis breadth
Operating voltage
Supply current
Low level output voltage
High level output voltage
Output short circuit current
Operating point temperature drift
Symbol
B
OP
B
RP
B
H
V
CC
I
CC
V
OL
V
OH
I
OS
鈭咮
OP
Conditions
V
CC
=16V
MIN.
11
10
1
4.5
-
-
13.9
-1.55
-
-
TYP.
-
-
-
-
-
-
-
-
2.0
2.5
MAX.
30
29
5
16
10.5
0.4
-
-0.80
4.5
8.0
(T
a
=25藲C)
Unit
mT
mT
mT
V
mA
V
V
mA
mT
mT
V
CC
=16V, B=<10mT
V
CC
=16V, I
O
=4mA, B>=30mT
V
CC
=16V, I
O
=-100碌A(chǔ), B=<10mT
V
CC
=16V
V
CC
=16V, T
a
=-5藲C to+60藲C
V
CC
=16V, T
a
=-20藲C to+80藲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.
2.9鹵0.2
1
2
