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MLX90366 데이터시트 PDF : 부품 기능 및 핀배열

부품번호 MLX90366
기능 Triaxis Position Sensor Assembly
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MLX90366 데이터시트 및 MLX90366 PDF

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MLX90366 pdf, 반도체, 판매, 대치품
MLX90366
TriaxisPosition Sensor Assembly feat. SENT
TABLE of CONTENTS
FEATURES AND BENEFITS ....................................................................................................................... 1
APPLICATIONS............................................................................................................................................ 1
ORDERING INFORMATION......................................................................................................................... 1
1. FUNCTIONAL DIAGRAM...................................................................................................................... 2
2. DESCRIPTION....................................................................................................................................... 3
3. GLOSSARY OF TERMS ABBREVIATIONS ACRONYMS ............................................................ 6
4. PINOUT.................................................................................................................................................. 6
5. ABSOLUTE MAXIMUM RATINGS ....................................................................................................... 7
6. DESCRIPTION....................................................................................................................................... 7
7. MLX90366 ELECTRICAL SPECIFICATION......................................................................................... 9
8. MLX90366 TIMING SPECIFICATION ................................................................................................. 10
8.1. TIMING DIAGRAMS ........................................................................................................................................11
8.2. APPLICATION DIAGRAM USED FOR RISE AND FALL TIME MEASUREMENT.......................................................12
9. MLX90366 ACCURACY SPECIFICATION ......................................................................................... 13
10. MLX90366 MAGNETIC SPECIFICATION .......................................................................................... 14
11. MLX90366 CPU & MEMORY SPECIFICATION ................................................................................. 14
12. MLX90366 END-USER PROGRAMMABLE ITEMS ........................................................................... 15
13. SENT OUTPUT PROTOCOL .............................................................................................................. 16
13.1. GENERALITY .............................................................................................................................................16
13.2. SINGLE SECURE FAST CHANNEL ...............................................................................................................16
13.2.1. Frame Content......................................................................................................................................16
13.2.2. Diagnostic Reporting through the fast channel....................................................................................16
13.2.3. Pause pulse...........................................................................................................................................17
13.2.4. Fast Channel CRC................................................................................................................................17
13.3. SLOW CHANNEL........................................................................................................................................17
13.3.1. Enhanced Serial Message ....................................................................................................................17
13.3.2. Serial Message Sequence .....................................................................................................................18
13.3.3. Serial message sequence period...........................................................................................................19
13.3.4. Serial Message Error Code ..................................................................................................................19
13.4. START-UP..................................................................................................................................................20
13.5. FIELD SENSING (ADC CONVERSIONS) AND THE FRAME SYNCHRO PULSE ..................................................20
14. DESCRIPTION OF END-USER PROGRAMMABLE ITEMS.............................................................. 21
14.1. OUTPUT TRANSFER CHARACTERISTIC.......................................................................................................21
14.1.1. CLOCKWISE Parameter......................................................................................................................21
14.1.2. Discontinuity Point (or Zero Degree Point).........................................................................................22
14.1.3. 17-Pts LNR Parameters........................................................................................................................22
14.1.4. CLAMPING Parameters ......................................................................................................................23
14.2. IDENTIFICATION ........................................................................................................................................23
14.3. SENSOR FRONT-END .................................................................................................................................23
14.3.1. MAPXYZ...............................................................................................................................................24
14.3.2. SMISM, k and SEL_k Parameters ........................................................................................................24
14.3.3. GAINMIN and GAINMAX Parameters ................................................................................................24
14.4. FILTER ......................................................................................................................................................25
14.5. DIAGNOSTIC FEATURES ............................................................................................................................25
14.6. EEPROM ENDURANCE .............................................................................................................................25
MLX90366
Rev. 1.0
Page 4 of 34
Datasheet
25/Jun/13

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MLX90366 전자부품, 판매, 대치품
MLX90366
TriaxisPosition Sensor Assembly feat. SENT
5. Absolute Maximum Ratings
Supply Voltage, VDD (overvoltage)
Reverse Voltage Protection
Positive Output Voltage
Output Current (IOUT)
Reverse Output Voltage
Reverse Output Current
Operating Ambient Temperature Range, TA
Storage Temperature Range, TS
Magnetic Flux Density
24 V
12 V (breakdown at -14 V)
18 V (breakdown at 24 V)
30 mA (in breakdown)
0.3 V
50 mA (in breakdown)
40°C   150C
40°C   150C
1T
Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute maximum
rated conditions for extended periods may affect device reliability.
6. Description
As described on the block diagram the three vector components of the magnetic flux density (BX, BY and
BZ) applied to the IC are sensed through the sensor front-end. The respective Hall signals (VX, VY and VZ)
are generated at the Hall plates and amplified.
The analog signal processing is based on a fully differential analog chain featuring the classic offset
cancellation technique (Hall plate 2-Phases spinning and chopper-stabilized amplifier).
The conditioned analog signals are converted through an ADC (15 bits) and provided to a DSP block for
further processing. The DSP stage is based on a 16 bit RISC micro-controller whose primary function is
the extraction of the position from two (out of three) raw signals (after so-called front-end compensation
steps) through the following function:
 V1,k V2
Where alpha is the magnetic angle (B1, B2), V1 = VX or VY or VZ , V2 = VX or VY or VZ and k is a
programmable factor to match the amplitude of V1 and k V2.
The DSP functionality is governed by the micro-code (firmware F/W) of the micro-controller which is
stored into the ROM (mask programmable). In addition to the magnetic angle extraction, the F/W controls
the whole analog chain, the output transfer characteristic, the output protocol, the programming/calibration
and also the self-diagnostic modes.
The magnetic angular information is intrinsically self-compensated vs. flux density variations. This feature
allows therefore an improved thermal accuracy vs. position sensor based on conventional linear Hall
sensors.
In addition to the improved thermal accuracy, the realized position sensor features excellent linearity
performance taking into account typical manufacturing tolerances (e.g. relative placement between the
Hall IC and the magnet).
MLX90366
Rev. 1.0
Page 7 of 34
Datasheet
25/Jun/13

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