Hall IC LT205A (under development) ■ Outline Dimentions (Unit : Fmm) Y 0.8 0.35 12 7 205 S ■ Applications ¡Brushless fan motor ¡ Cooling fan motor for personal computers,word processors, etc. ¡Directly cooling fan for cooling fin, PCB, etc. 1 (5.05) ■ 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) 4.4 6.5 LT205A GaAs Hall IC for Fan Motor with Variable Speed by Temperature 6 0.15 0.7 ■ Motor drive current vs. temperature (Example) 0.6 Output current 5.0 100% Terminal connection 1 : C+ 2 : C3 : NC 4 : CEXT 5 : NC 6 : GND1 50% 25˚C(*1) 45˚C(*2) *1,*2 Set at random Thermistor ambient 7 : ALOUT 8 : OUT2 9 : OUT1 10 : GND2 11 : VCC 12 : VREG temperature As for dimensions of tape-packaged products, refer to page 44 . ■ Block diagram Hall IC in the dotted line VCC Hall device 12 VREG VCC 11 REG + 1 C+ 2 0.1µF Thermistor C- Rotation detection circuit Temperature control circuit Regulator 10 GND2 9 OUT1 8 Output time control OUT2 Fan Motor Lock/automatic reset 4 6 7 CEXT GND1 ALOUT ■ Electrical Characteristics Parameter Operating supply voltage Output current Output saturation voltage Output cut-off current Operating magnetic flux density (Ta=25˚C) Symbol VCC IOUT VOUT IOC B1 B2 Conditions VCC=12V, IO=0.5A VO=55V MIN. 8 -10 - TYP. - MAX. 28 (0.5) (1.5) 30 10 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. Unit V A V µA mT mT