LT251A Datasheet, PDF (1/2 Pages) Sharp Electrionic Components – GaAs Hall IC for Noncontact Swich(Unidirectional magnetic field-type)

Hall IC
LT251A
LT251A
GaAs Hall IC for Noncontact Swich
(Unidirectional magnetic field-type)
s Features
s
¡Operation by small magnet due to high sensitivity Operating
point<30mT
¡Combining a GaAs Hall device and an IC in a compact
package (2.9X1.5X1.1mm)
¡Wide operation temperature range obtained by GaAs Hall
device (-20 to +125˚C)
¡Long life time due to noncontact-type
s Applications
¡FDD
¡HDD
¡Water meter
¡Car stereo
¡Microswitch, etc.
Outline Dimensions
2.7±0.3
Y
1
4
(Unit : mm)
S
Z
2
3
X
4-R0.2
Hall device center line
X : +0.05±0.23mm against package center
Y : -0.05±0.1mm against package lead center between
No.2 and No.3 terminals
Z : 0.81±0.15mm from package surface
0.6 1.5±0.2 0.6
Terminal connections
REG
Hall
device
H
s Absolute Maximum Ratings
(Ta=25˚C)
Parameter
Supply voltage
Output voltage
Output current
Power dissipation
Operating temperature
Storage temperature
Soldering temperature^*1
Symbol
VCC
VOUT
IO
PD
Topr
Tstg
Tsol
Rating
18
18
5
100
-20 to +125
-55 to +150
260
Unit
V
V
mA
mW
˚C
˚C
˚C
1 : VCC
2 : VOUT
*No.3 terminal and the section of leads (both sides
of package in X direction) are connected with the
3 : Don't use.
4 : GND
terminal of internal IC. Be careful in connecting other circuits.
As for dimensions of tape-packaged products, refer to page 44 .
s Operating Explanation
*1 Soldering time : within 10 seconds
<Unidirectional magnetic field-type>
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
0 BRP BOP
+B
Magnetic flux density
Symbol
BOP
BRP
BH
VCC
ICC
VOL
VOH
IOS
∆BOP
Conditions
VCC=16V
VCC=16V, B=<10mT
VCC=16V, IO=4mA, B>=30mT
VCC=16V, IO=-100µA, B=<10mT
VCC=16V
VCC=16V, Ta=-5˚C to+60˚C
VCC=16V, Ta=-20˚C to+80˚C
MIN.
11
10
1
4.5
-
-
13.9
-1.55
-
-
TYP.
-
-
-
-
-
-
-
-
2.0
2.5
(Ta=25˚C)
MAX. Unit
30
mT
29
mT
5
mT
16
V
10.5 mA
0.4
V
-
V
-0.80 mA
4.5
mT
8.0
mT
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.