MA111 GaAs Hall Elements OH017 GaAs hall element ● Hall voltage : typ. 90mV(VC= 3V, B= 0.1T) ● Input resistance : typ. 2kΩ(min. 1.5kΩ) ● Output resistance : typ. 7kΩ ● Low current dissipation type ● Mini thin type (4-pin) package. Automatic insertion through taping 4 1 3 2 0.9±0.05 0.3 max. ■ Features 1.45±0.05 Unit : mm Magnetic sensor 1.45±0.05 0.8±0.1 0.6±0.1 5° 5° 0.6±0.05 x 0.2 ma and magazine possible. . 2.85±0.25 0.26±0.05 ■ Applications ● Various hall motor – side 1 : VC Input 2 : VH Output – side + side 3 : VC Input 4 : VH Output + side Mini Thin Type Package (4-pin) (Applicable to CD, VD, VCR, FDD, and other portable equipment) ● Applicable to wide-varying field (OA equipment, etc.) Marking Symbol : D ■ Absolute Maximum Ratings (Ta= 25˚C) Symbol Rating Control voltage Parameter VC 6 Power dissipation PD 100 Operating ambient temperature Topr –10 to +125 ˚C Storage temperature Tstg – 55 to +125 ˚C Unit V mW ■ Electrical Characteristics (Ta= 25˚C) Symbol Parameter *1 Condition VC= 3V, B= 0.1T min typ 70 90 max Unit Hall voltage VH Unbalance voltage VHO*2 VC= 3V, B= 0T Input Resistance RIN IC= 0.1mA, B= 0T 1.5 Output resistance ROUT IC= 0.1mA, B= 0T 5 Temperature coefficient of hall voltage β IC=1.5mA, B= 0.1T – 0.06 %/˚C Temperature coefficient of input resistance α IC= 0.1mA, B= 0T 0.3 %/˚C Linearity of hall voltage *1 VH = VH + + VH γ ∗3 IC=1mA, B= 0.05T/0.1T 110 mV + 9.5 mV 2 3 kΩ 7 10 kΩ 2 – 2 *2 Output pin voltage at no-load (B= 0) *3 The linearity γ 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 γ= ( Percentage of the cumulative sensitivity KH = ) 1/2 (KH0.05 + KH0.1) IC · B % OH017 GaAs Hall Elements PD – Ta VH – Ta RIN – Ta 240 200 4000 180 (mV) 160 VH (mW) PD 100 Hall voltage Power dissipation 120 Input resistance RIN (Ω) 200 160 140 B=0 IC=0.1mA B=0.1T IC=1.5mA 80 60 40 120 80 3000 2000 1000 40 20 0 0 0 20 40 60 0 80 100 120 140 160 Ambient temperature Ta – 40 (˚C) 0 Ambient temperature VH – B 80 120 –40 (˚C) Ta 0 200 160 120 0.08 0.12 0.16 0.20 40 0 1 2 3 4 ■ Typical Drive Circuit +5V +5V 1 – 2 + 3 –5V –5V 120 40 Control current IC (mA) 4 160 80 0 Magnetic flux density B (T) 200 80 0 0.04 B=0.1T Ta=25˚C 240 Hall voltage VH (mV) Hall voltage VH (mV) 50 120 280 240 100 80 320 B=0.1T Ta=25˚C 280 150 40 VH – VC 320 VC=3V Ta=25˚C 0 0 Ambient temperature Ta (˚C) VH – IC 200 Hall voltage VH (mV) 40 –V +V 0 1 2 3 4 5 6 Control voltage VC (V) 7 8