MRSS31U

DATA SHEET MRSS31U Micro power Built-in IC ultra-minimum MR sensor FEATURES *Micro power (15µW(typ):Vcc=3V) and High-sensitivity(2mT(typ)) (suited for battery-operation) *Ultra-small size MR(Magneto-resistance)sensor * Volume and mounting area are 50% smaller than MRSS22L. * Height is about 4mm lower than MRSS22L. *Operating in one way magnetic field *Operating with independent pole (easily manufacture) *Superior Temperature stability *Lead free goods 2.Fundamental Operation 2-1.Direction of Magnetic Field 2-2.Circuit Block SWITCH ‚q1 ‚q2 2.0 } 0.2 0.3 +0.1 -0.05 MR Sensor 1.Dimension (Unit:mm) 0.25 } 0 .1 0.15 +0.1 -0.05 Gnd 2 .1 } 0 .1 0 ` 0 .05 1 .6 Vcc Out 0.6 5 0.65 Ma x0.8 ‚u‚ƒ‚ƒ SAMPLING LOGIC LATCH Op-Amp ‚n‚t‚s MOS Operation ‚q3 ‚q4 ‚f‚m‚c R1 ` R 4 F MR Elements 2-3.Performance Characteristics (25±3ºC) Operating require Condition H = 0 mT(Magnetic Flux Density) [0 A/m (Magnetic Field Strength)] H ≥ 2.0(Typ)mT(Magnetic Flux Density) [1.6kA/m (Magnetic Field Strength)] H ≤ 0.5 mT (Magnetic Flux Density) [0.4kA/m(Magnetic Field Strength)] Output Voltage Hi-level Lo-level Hi-level When power switch is ON When magnetic field is applied When magnetic field is applied 0.4 } 0 .1 DATA SHEET MRSS31U 3.Performance 3-1.Operating Conditions Recommended (Ta = 25±3ºC unless otherwise specified) Item Supply Voltage Supply Current Ambient Temperature Output Voltage VOL Hi-level output Hon Lo-level output Hoff *1) *2) MR Sensor Output VOH Condit...