Sharp LT253A Datasheet
Hall IC
LT253A
■ Features
¡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
■ Applications
¡FDD
¡HDD
¡Water meter
¡Car stereo
¡Microswitch, etc.
■ Absolute Maximum Ratings (T
Parameter
Supply voltage
Output voltage
Output current
Power dissipation
Operating temperature
Storage temperature
Soldering temperature
*1 Soldering time : within 10 seconds
*1
Symbol
V
CC
V
OUT
I
O
P
D
T
opr
T
stg
T
sol
Rating
-20 to +125
-55 to +150
18
18
100
260
a
=25˚C)
Unit
V
V
5
mA
mW
˚C
˚C
˚C
LT253A
GaAs Hall IC for Noncontact Swich
(Unidirectional magnetic field-type)
■ Outline Dimensions
2.7±0.3
0.40.4
1.9
2.9±0.2
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
+0.10
-0.06
0.16
*No.3 terminal and the section of leads(both sides
of package in X directionÅjare connected with the
terminal of internal IC. Be careful in connecting other circuits.
Y
1
2
1.5±0.2
0.6 0.6
0.6
4
0.850.95
3
X
0.4
4-R0.2
Terminal connections
0.30.8
Hall
device
+0.2
-0.1
1.1
(0to0.15)
As for dimensions of tape-packaged products, refer to page 44 .
■ Operating Explanation
<Unidirectional magnetic field-type>
(Unit : mm)
SZ
REG
+
H
-
1 : V
CC
2 : V
OUT
3 : Don't use.
4 : GND
2.9±0.2
■ Electrical Characteristics
Parameter
Operating magnetic flux density
Hysteresis breadth
Operating voltage
Supply current
Low level output voltage
Output leakage current
Operating point temperature drift
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.
Symbol
B
OP
B
RP
B
H
V
CC
I
CC
V
OL
I
OH
∆B
OP
Conditions
V
CC
=16V
VOO=16V
RL=10kΩ
V
CC
=16V, B==<10mT
I
O
=4mA, B>=30mT
V
CC
=16V, B=<10mT, VOO=16V
V
CC
=16V, Ta=-5˚C to+60˚C
V
CC
=16V, Ta=-20˚C to+80˚C
Output voltage
BRP0BOP +B
Magnetic flux density
10
4.5
TYP.
18
16
-
2
-
-
-
-
-
-
-
-
-
2.0
2.5
MIN.
MAX.
30
5
16
10.5
0.4
10
4.5
8.0
(Ta=25˚C)
Unit
mT
mT
mT
V
mA
V
µA
mT
mT
Hall IC
LT253A
Fig. 1 Operating Magnetic Flux Density
vs. Supply Voltage
Ta=25˚C
(mT)
24
20
OP
B
16
12
B
RP
8
4
Operating magnetic flux density B
0
016812420
Supply voltage VCC (V)
Fig. 3 Supply Current vs. Supply Voltage
10
B=<10mT
a
=25˚C
T
8
(mA)
CC
6
Fig. 2 Operating Magnetic Flux Density
vs. Ambient Temperature
VCC=16V
(mT)
24
20
B
OP
16
12
B
RP
8
4
Operating magnetic flux density B
0
80040-40 120
Ambient temperature Ta (˚C)
Fig. 4 Supply Current vs. Ambient
Temperature
10
VCC=16V
B=<10mT
8
(mA)
CC
6
4
Supply current I
2
0
0164 8 12 20
Supply voltage VCC (V)
Fig. 5 Low Level Output Voltage vs.
Output Current
0.5
VCC=16V
B>=30mT
(V)
0.4
a
=25˚C
T
OL
0.3
0.2
0.1
Low level output voltage V
0
04123 5
Output current IO (mA)
4
Supply current I
2
0
-40 12004080
Ambient temperature Ta (˚C)
Fig. 6 Low Level Output Voltage vs.
Ambient Temperature
0.5
VCC=16V
O
=4mA
I
(V)
0.4
B>=30mT
OL
0.3
0.2
0.1
Low level output voltage V
0
Ambient temperature Ta (˚C)
80-40 0 40 120
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