參數(shù)資料
型號: MLX90316KDC
廠商: Electronic Theatre Controls, Inc.
英文描述: Rotary Position Sensor IC
中文描述: 旋轉(zhuǎn)位置傳感器IC
文件頁數(shù): 6/34頁
文件大小: 854K
代理商: MLX90316KDC
MLX90316
Rotary Position Sensor IC
3901090316
Rev. 001
Page 6 of 34
Data Sheet
4 October 05
5. Absolute Maximum Ratings
Parameter
Supply Voltage, V
DD
(overvoltage)
Reverse Voltage Protection
Positive Output Voltage
Value
+
20 V
10 V
+
10 V
+
14 V (200 s max
T
A
=
+
25
°
C)
±
30 mA
0.3 V
50 mA
40°C
+
150
°
C
40°C
+
150
°
C
±
700 mT
Output Current (I
OUT
)
Reverse Output Voltage
Reverse Output Current
Operating Ambient Temperature Range, T
A
Storage Temperature Range, T
S
Magnetic Flux Density
Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute-maximum-rated
conditions for extended periods may affect device reliability.
6. Detailed Description
As described on the block diagram (Figure 1), the magnetic flux density parallel to the IC surface (i.e. B
//
)
is sensed through the Tria
is
sensor front-end. This front-end consists into two orthogonal pairs (for
each of the two directions parallel with the IC surface i.e. X and Y) of conventional planar Hall plates (blue
area on Figure 3) and an Integrated Magneto-Concentrator (IMC
yellow disk on Figure 3).
Figure 3
Tria
is
sensor front-end (4 Hall plates + IMC
disk)
Both components of the applied flux density B
//
are measured individually i.e. B
X//
and B
Y//
. Two orthogonal
components (respectively B
X
and B
Y
) proportional to the parallel components (respectively B
X//
and B
Y//
)
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 (diametrally magnetized) rotates above the IC as described on Figure 2, the sensing
stage provides two differential signals in quadrature (sine and cosine
Figures 4 & 5).
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