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LT205A

Sharp Electrionic Components
Part Number LT205A
Manufacturer Sharp Electrionic Components
Description GaAs Hall IC for Fan Motor with Variable Speed by Temperature
Published Mar 22, 2005
Detailed Description Hall IC LT205A LT205A (under development) GaAs Hall IC for Fan Motor with Variable Speed by Temperature s Outline Di...
Datasheet PDF File LT205A PDF File

LT205A
LT205A

Overview
Hall IC LT205A LT205A (under development) GaAs Hall IC for Fan Motor with Variable Speed by Temperature s Outline Dimentions Y 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) 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) (Unit : Fmm) 0.
8 12 7 0.
35 S 1 6 0.
15 0.
7 0.
6 5.
0 Output current 100% Terminal connection 1 : C+ 2 : C3 : NC 4 : CEXT 5 : NC 6 : GND1 7 : ALOUT 8 : OUT2 9 : OUT1 10 : GND2 11 : VCC 12 : VREG 50% 25˚C(*1) *1,*2 Set at random 45˚C(*2) Thermistor ambient temperature s Block diagram Hall IC in the dotted line VCC Hall device + As for dimensions of tape-packaged products, refer to page 44 .
REG Rotation detection circuit 12 VREG VCC 11 Regulator 10 GND2 9 OUT1 8 OUT2 Fan Motor 1 C+ 2 0.
1µF Thermistor C- Temperature control circuit Output time control Lock/automatic reset 4 6 7 CEXT GND1 ALOUT s Electrical Characteristics Parameter Operating supply voltage Output current Output saturation voltage Output cut-off current Operating magnetic flux density Symbol VCC IOUT VOUT IOC B1 B2 Conditions MIN.
8 -10 TYP.
MAX.
28 (0.
5) (1.
5) 30 10 (5.
05) 205 4.
4 6.
5 (Ta=25˚C) Unit V A V µA mT mT VCC=12V, IO=0.
5A VO=55V 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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