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| GaAs Hall Elements MA111 OH023 GaAs hall element Magnetic sensor 0.650.15 2.8 -0.3 +0.2 Unit : mm 0.650.15 +0.2 1.5 -0.3 s Features 0.95 2.90.2 1.90.2 0.5R 4 1 q q q q Hall voltage : typ. 90mV(VC= 3V, B= 0.1T) Input resistance : typ. 2k(min. 1.5k) Output resistance : typ. 7k(max. 10k) Sealed in the Mini type (4-pin) package. Automatic insertion through taping and magazine. 0.95 3 2 1.1 -0.1 s Applications q Various hall motor (Applicable to CD, VD, VCR, FDD, and other portable equipment) Applicable to wide-varying field (OA equipment, etc.) q 1 : VH Output - side - side 2 : VC Input 3 : VH Output + side + side 4 : VC Input Mini Type Package (4-pin) Marking Symbol : OT s Absolute Maximum Ratings (Ta= 25C) Parameter Control voltage Power dissipation Operating ambient temperature Storage temperature Symbol VC PD Topr Tstg Rating 6 150 -10 to +125 - 55 to +125 Unit V mW C C s Electrical Characteristics (Ta= 25C) Parameter Hall voltage Unbalance voltage Input Resistance Output resistance Temperature coefficient of hall voltage Temperature coefficient of input resistance Linearity of hall voltage *1 VH = VH + Symbol VH *1 VHO RIN ROUT 2 Condition VC= 3V, B= 0.1T VC= 3V, B= 0T IC= 0.1mA, B= 0T IC= 0.1mA, B= 0T IC=1.5mA, B= 0.1T IC= 0.1mA, B= 0T IC=1mA, B= 0.05T/0.1T min 70 1.5 5 typ 90 2 7 0 to 0.1 0.40.2 0.8 max 110 9.5 3 10 - 0.06 0.3 2 0.16 -0.06 +0.2 +0.1 0.4 -0.05 +0.1 Unit mV mV k k %/C %/C % + VH - 2 *2 The linearity of VH is a percentage of the cumulative sensitivity of KH0.05 and KH0.1 measured at B= 0.05T and 0.1T for the average value. KH0.1 - KH0.05 VH = ( Percentage of the cumulative sensitivity KH = ) 1/2 (KH0.05 + KH0.1) IC * B GaAs Hall Elements OH023 PD - Ta 200 180 160 200 240 VH - Ta 4000 B=0.1T IC=1.5mA RIN - Ta B=0 IC=0.1mA (mW) 140 120 100 80 60 40 20 0 0 20 40 60 80 100 120 140 160 Ta (C) Ambient temperature 160 Power dissipation Hall voltage 120 Input resistance RIN () - 40 0 40 80 Ta 120 (C) 3000 PD VH (mV) 2000 80 1000 40 0 Ambient temperature 0 -40 0 40 80 120 Ambient temperature Ta (C) VH - B 200 VC=3V Ta=25C 320 280 240 VH - IC 320 B=0.1T Ta=25C 280 240 VH - VC B=0.1T Ta=25C 150 Hall voltage VH (mV) Hall voltage VH (mV) 200 160 120 80 40 Hall voltage VH (mV) 0 1 2 3 4 200 160 120 80 40 0 0 1 2 3 4 5 6 7 8 100 50 0 0 0.04 0.08 0.12 0.16 0.20 Magnetic flux density B (T) 0 Control current IC (mA) Control voltage VC (V) s Typical Drive Circuit +5V 4 3 2 1 - + +5V -5V -5V -V +V |
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