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| Hall IC LT230A LT230A GaAs Hall IC for Noncontact Switch (Unidirestional magnetic field-type) (Unit : Fmm) s Features Same temperature coefficient of magnetic flux density as s Outline Dimentions a magnet 2.70.3 Operation by small magnet due to high sensitivity Y Operating point <20mT 1 4 Combining a GaAs Hall device and an IC in a compact package (2.9X1.5X1.1mm) Wide operation temperature range obtained by GaAs Hall device (-20 to +125C) 2 3 Long life time due to noncontact-type 0.4 2.90.2 1.9 0.4 0.6 0.85 S 0.95 Z X 0.16+0.10 -0.06 1.1-0.1 0.8 s Applications FDD HDD Noncontact switch +0.2 4-R0.2 Hall device center line X:+0.050.23mm against package center Y:-0.050.1mm against package lead center between No.2 and No.3 terminals Z:0.810.15mm from package surface Terminal connections 1.50.2 0.6 0.6 REG Hall + device H 0.3 0.4 - s Absolute Maximum Ratings Parameter Supply voltage Output voltage Output current Power dissipation Operating temperature Storage temperature Soldering temperature* * (Ta=25C) Rating 18 18 5 100 -20 to +125 -55 to +150 260 Unit V V mA mW C C C 1:VCC 2:VOUT 3:Don't use. *No.3 terminal and the section of leads(both sides 4:GND of package in X direction)are connected with the terminal of internal IC. Be careful in connecting other circuits. Symbol VCC VOUT IO PD Topr Tstg Tsol As for dimensions of tape-packaged products, refer to page 44 . Soldering time : within 10 seconds s Electrical Characteristics Parameter Operating magnetic flux density Hysteresis breadth Operating voltage Supply current Low level output voltage Output leakage current Operating point temperature drift Symbol BOP BRP BH VCC ICC VOL IOH BOP Condition VCC=5V VOO=5V RL=10K VCC=16V, B=<5mT IO=4mA, B>=20mT VCC=16V, VOO=16V, B=<10mT VCC=5V, Ta=-20C to +80C MIN. 5 1 4.5 TYP. 13 11 -0.2 MAX. 20 6 16 10.5 0.4 10 - (0to0.15) (Ta=25C) Unit mT mT mT V mA V A %/C 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. 2.90.2 Hall IC Fig. 1 Operating magnetic flux density B (mT) LT230A Operating Magnetic Flux Density vs. Supply Voltage Ta=25C Fig. 2 Operating magnetic flux density B (mT) Operating Magnetic Flux Density vs. Ambient Temperature VCC=5V 24 20 16 12 8 4 0 0 4 8 12 16 Supply voltage VCC (V) 20 BOP BRP 24 20 16 12 8 4 0 -40 0 40 80 120 Ambient temperature Ta (C) BRP BOP Fig. 3 10 8 6 4 2 Supply Current vs. Supply Voltage B=<10mT Ta=25C Fig. 4 10 8 6 4 2 Supply Current vs. Ambient Temperature VCC=5V B=<10mT Supply current ICC (mA) 0 Supply current ICC (mA) 0 4 8 12 16 Supply voltage VCC (V) 20 0 -40 0 40 80 120 Ambient temperature Ta (C) Fig. 5 0.5 Low Level Output Voltage vs. Output Current VCC=16V B>=30mT Ta=25C Fig. 6 0.5 Low level output voltage VOL (V) Low Level Output Voltage vs. Ambient Temperature VCC=16V IO=4mA B>=30mT Low level output voltage VOL (V) 0.4 0.3 0.2 0.1 0.4 0.3 0.2 0.1 0 0 1 2 3 4 Output current IO (mA) 5 0 -40 0 40 80 120 Ambient temperature Ta (C) |
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