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.

Hall IC

s Outline Dimensions

(Unit : mm)

LT202A

GaAs Hall IC for Fan Motor

s Features

¡Increasing the efficiency of motor rotation due to cutting

the electric current which doesn't contributing to rotation

¡Combining a GaAs Hall device and a driver IC in a

compact 8-pin SOP package

¡Operation in low magnetic flux density (10mT) due to

applied high sensitive Hall device

¡Built-in protection circuit, alarm output and automatic

restart circuit

s Applications

¡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

LT202A

As for dimensions of tape-packaged

products, refer to page 44 .

s Absolute Maximum Ratings

Supply voltage

Output voltage

Output current (peak)

Output current (continuous)

Coil input voltage

Alarm output sink current

Power dissipation

Oparating temperature

Storage temperature

Symbol

Conditions

Rating

30

55

750

450

250

150

-0.2 to 0.2

5

400

-20 to +80

-55 to +150

Unit

V

V

mA

mA

mA

mA

V

mA

mW

˚C

˚C

Parameter

260

˚C

*1 Soldering time : within 10 seconds

(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).

s Electrical Characteristics

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

Conditions

*

At no-load

V=28V

MIN.

-

-

8

-

-10

-

15

-

-

TYP.

-

-

-

-

-

-

-

-

-

MAX.

1.5

30

28

13

-

10

-

0.5

15

Unit

V

µA

V

mA

mT

mT

mV

V

µA

Parameter

X direction : against package

center -1.4±0.2a

Y direction : against package

center

0.0±0.2a

Z direction : from package

surface 0.0±0.2a

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.

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

-

Sensor

positioning

Y

X

0

14

85

8-0.4±0.1

5.0±0.2

0.15±0.05

P 1.27TYP

-