LT205A

s Electrical Characteristics

Operating supply voltage

Output current

Output saturation voltage

Output cut-off current

Operating magnetic flux density

Symbol

Conditions

MIN.

8

-

-

-

-10

TYP.

-

-

-

-

-

MAX.

28

(0.5)

(1.5)

30

-

Unit

V

A

V

µA

mT

Parameter

-

-

10

mT

s Outline Dimentions

(Unit : Fmm)

GaAs Hall IC for Fan Motor with

Variable Speed by Temperature

s Block diagram

205

S

Y

16

12

7

0.8

5.0

0.15

0.35

0.7

0.6

1 : C+

2 : C-

3 : NC

5 : NC

Terminal connection

-

+

12

11

10

9

8

4

6

7

1

2

REG

Hall IC in the dotted line

Hall device

Temperature

control

circuit

Output time

control

Lock/automatic

reset

Rotation

detection

circuit

Thermistor

C-

C+

Fan Motor

0.1

µF

Regulator

s Applications

¡Brushless fan motor

¡ Cooling fan motor for personal computers,word

processors, etc.

¡Directly cooling fan for cooling fin, PCB, etc.

s Motor drive current vs. temperature (Example)

25˚C(*1)

45˚C(*2)

Thermistor ambient

temperature

*1,*2 Set at random

100%

50%

As for dimensions of tape-packaged products, refer to page 44 .

Hall IC

LT205A

(under development)

s Features

¡Space saving mounting due to combining a Hall device

and a driver IC in a small 12-pin SOP package

¡Wind control depending on calorific value

¡Low noise

¡With automatic reset and alarm output function when a

motor is locked

¡Surface mount type (Taping: 1,000 pcs/reel)

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.