Hall IC
LT202A
LT202A
s
Features
隆Increasing
the efficiency of motor rotation due to cutting
the electric current which doesn't contributing to rotation
隆Combining
a GaAs Hall device and a driver IC in a
compact 8-pin SOP package
隆Operation
in low magnetic flux density (10mT) due to
applied high sensitive Hall device
隆Built-in
protection circuit, alarm output and automatic
restart circuit
s
Applications
隆Brushless
fan motors
1. Cooling fan motors for personal computers, word
processors, etc.
2. Directly cooling fan motors for cooling fin, PCB, etc.
3. Fan motors for air circulation of temperature sensor in
air conditioner
Y
8-0.4鹵0.1
8
GaAs Hall IC for Fan Motor
s
Outline Dimensions
P 1.27TYP
5
(Unit : mm)
4.4鹵0.2
6.5鹵0.4
-X
0
1
5.0鹵0.2
4
0.15鹵0.05
-
X direction : against package
Sensor
positioning
center -1.4鹵0.2a
Y direction : against package
center 0.0鹵0.2a
Z direction : from package
surface 0.0鹵0.2a
Terminal connection
1:Input terminal for phase detection
2:Input terminal for phase detection
3:Condenser terminal for rotation detection
4:GND
5:Alarm output
6:Vout
7:Vout
8:Vcc
The section of leads (both sides of package in X-direction) is connected with the terminal of
internal IC. Be careful in connecting other circuits.
s
Absolute Maximum Ratings
Parameter
Supply voltage
Output voltage
Output current (peak)
Output current (continuous)
Coil input voltage
Alarm output sink current
Power dissipation
Oparating temperature
Storage temperature
Soldering temperature
*1
Symbol
V
CC
V
O
I
OMAX
I
O
V
IN
I
SINK
P
D
T
opr
T
stg
T
sol
Conditions
Rating
30
55
750
450
250
150
-0.2 to 0.2
5
400
-20 to +80
-55 to +150
260
(T
a
=25藲C)
Unit
V
V
mA
mA
mA
mA
V
mA
mW
藲C
藲C
藲C
V
CC
=12V
V
CC
=24V
V
CC
=12V
V
CC
=24V
*1 Soldering time : within 10 seconds
s
Electrical Characteristics
Parameter
Output saturation voltage
Output cut-off current
Operating supply voltage
Supply current
Operating magnetic flux density
Coil input sensitivity
Alarm output saturation voltage
Alarm output leakage current
Symbol
V
OUT
I
OC
V
CC
I
CC
B
1
B
2
V
IN
V
SAT
I
LEAK
Conditions
I
O
=250mA, V
CC
=12V
V
O
=55V
*
At no-load
MIN.
-
-
8
-
-10
-
15
-
-
TYP.
-
-
-
-
-
-
-
-
-
MAX.
1.5
30
28
13
-
10
-
0.5
15
0.1鹵0.1
0.60
As for dimensions of tape-packaged
products, refer to page 44 .
0.65
1.25鹵0.2
(5.05)
(T
a
=25藲C)
Unit
V
碌A(chǔ)
V
mA
mT
mT
mV
V
碌A(chǔ)
I
SINK
=4mA
V=28V
(Note) Unspecified condition is Vcc=24V.
* In case of oscillating from power supply due to wiring, connect a condenser between 8-pin (Vcc) and 4-pin (GND).
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.
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