datasheet v 1 .0a 1 / 5 tmr 3001 tmr dual - axis angle sensor general description the dual - axis output voltages of the TMR3001 tmr angle sensor are proportional to the sine and cosine of the angle of a magnetic field applied parallel to the surface of the sensor, which can be provided by a small magnet positioned above the de vice. the TMR3001 includes two wheatstone bridges, which can be configured to output sine and cosine functions respectively. each b ridge includes four tmr sensor elements in a push - pull arrangement to produce a best - in - class peak - to - peak signal as large as 90% of the supply voltage, eliminating the need for amplification in many applications. additionally, the unique tmr wheatsto ne br idge technology accurately compensates the output against changes in ambient temperature. this sensor is assembled in a compact lga8 package of 3.0 mm 3.0 mm 0.9 mm. features and benefits ? t unneling magnetoresistance (tmr) technology ? large output signal without amplification ? dual - axis 360 ? compatible with wide rang of supply voltages ? fast response for high - speed applications ? wide air - gap tolerance ? excellent thermal stability ? compact lga package applications ? rotary position sensors ? rotary encoders ? contactless potentiometers ? valve position sensors ? knob position sensors tmr 3001 operation a small magnet, placed above the TMR3001, can be used to provide a magnetic field in any desired orientation parallel to the plane of the TMR3001 package. the magnetic field is detected by tmr sensors in the TMR3001 that are composed of two magnetic layers. one layer of the tmr sensors is a pinned layer that is not affected by the magnetic field, and the other i s free layer, which has a magneti zation that aligns parallel to the applied magnetic field. because the tmr effect produces a resistance that is proportional to the sine or cosine of the relative difference between the free and pinned layer magnetization orienta tions, the sensor output vo ltage is sinusoidally dependent on the angle of the applied magnetic field, thereby providing a measure of the orientation of the magnet.
datasheet v 1 .0a 2 / 5 the following chart show a typical sensor output as a function of the angle of the applied magnetic field using a 6 mm diameter, 2.5 mm thick magnet and a 1 v supply. pinout (bottom view) (top view) (bridge schematic) pin no. pin name function 1 gndx ground(direction x) 2 x - analog differential output 2(direction x) 3 x+ analog differential output 1(direction x) 4 gnd y ground (direction y) 5 y+ analog differential output1(direction y) 6 y - analog differential output2(direction y) 7 v cc x supply voltage(direction x) 8 v cc y supply voltage(direction y)
datasheet v 1 .0a 3 / 5 absolute maximum ratings parameter symbol limit unit supply voltage v cc 7 v max exposed field h e 3 000 oe (1) esd voltage v esd 4000 v operating temperature t a - 40~ 85 c storage temperature t stg - 40 ~1 05 c specification ( v cc =1.0v , t a =25c , differential output ) parameter symbol conditions min typ max unit supply voltage v cc operating 1 7 v bridge resistance r operating 2.5 4.0 (2) 5.5 kohm peak voltage v peak operating 900 mv/v offset voltage v offset angle = 0 - 10 10 mv/v magnetic field h operating 70 400 oe angular error ? operating 2.5 operation coefficient of peak voltage tcv peak t a in - 40~85c - 990 ppm/c note: (1) 1 oe (oersted) = 1 gauss in air = 0.1 millitesla = 79.8 a/m. (2) custom sensor resistance may be available upon request. package in formation unit:mm 3 0 . 1 3 0 . 1 0 . 2 ref 0 . 75 0 . 1 0 . 55 0 . 1 0 . 3 0 . 05 0 . 65 0 . 05
datasheet v 1 .0a 4 / 5 tmr sensor position top view and side view(unit: mm) 0 . 4 0 . 1 1 . 5 0 . 1 0 . 4 0 . 1 1 . 5 0 . 1 0 . 25 0 . 05
datasheet v 1 .0a 5 / 5 multidimension technology co., ltd. address: no.7 guangdong road, zhangjiagang free trade zone, jiangsu, 215634, china web: www.dowaytech.com/en email: info@dowaytech.com the information provided herein by multidimension technology co., ltd. (hereinafter multidimension) is believed to be accurate and reliable. publication neither conveys nor implies any license under patent or other industrial or intellectual property rights. m ultidimension reserves the right to make changes to product specifications for the purpose of improving product quality, reliability, and functionality. multidimension does not assume any liability arising out of the application and use of its products. mu ltidimensions customers using or selling this product for use in appliances, devices, or systems where malfunction can reasonably be expected to result in personal injury do so at their own risk and agree to fully indemnify multidimension for any damages resulting from such applications.
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