316BCG 查看數據表（PDF） - Unspecified
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316BCG Datasheet PDF : 45 Pages
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MLX90316
Rotary Position Sensor IC
Both components of the applied flux density B// are measured individually i.e. BX// and BY//. Two orthogonal
components (respectively BX⊥ and BY⊥) proportional to the parallel components (respectively BX// and BY//)
are induced through the IMC and can be measured by both respective pairs of conventional planar Hall
plates as those are sensitive to the flux density applied orthogonally to them and the IC surface.
While a magnet (diametrically magnetized) rotates above the IC as described on Figure 4, the sensing
stage provides two differential signals in quadrature (sine and cosine − Figure 6 and Figure 7)
400
300
200
100
0
-100
-200
-300
-400
0
90
180 270 360 450 540 630 720
Alpha (Degree)
BX
BY
Figure 6 – Magnetic Flux Density – BX ∝ cos(α) & BY ∝ sin(α)
2000
1500
1000
500
0
-500
-1000
-1500
-2000
0
90
180 270 360 450 540 630 720
Alpha (Degree)
VX
VY
Figure 7 – Tria⊗is® sensor front-end − Output signals − VX ∝ BX ∝ cos(α) & VY ∝ BY ∝ sin(α)
3901090316
Rev10
Page 9 of 45
Jul/13
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