MLX90367KDC-ABU-000-SP 数据手册
MLX90367
Triaxis Position Sensor IC feat. SENT
Features and Benefits
Triaxis Hall Technology
On Chip Signal Processing for Robust Absolute Position Sensing
Simple Magnetic Design
Programmable Measurement Range
Programmable Linear Transfer Characteristic (Multi-points)
SENT output (according to SAE J2716-2010)
12 bit Resolution - 10 bit Thermal Accuracy
48 bit ID Number option
Single Die – SOIC-8 Package RoHS Compliant
Dual Die (Full Redundant) – TSSOP-16 Package RoHS Compliant
Applications
Absolute Rotary Position Sensor
Pedal Position Sensor
Throttle Position Sensor
Ride Height Position Sensor
Absolute Linear Position Sensor
Steering Wheel Position Sensor
Float-Level Sensor
Non-Contacting Potentiometer
Ordering Information1
Part No.
Temperature Suffix
Package Code
Die Revision
Option code
Packing
MLX90367
MLX90367
L (− 40°C to + 150°C)
L (− 40°C to + 150°C)
DC [SOIC-8]
GO [TSSOP-16]
ABU
ABU
000
000
RE
RE
MLX90367
MLX90367
L (− 40°C to + 150°C)
L (− 40°C to + 150°C)
DC [SOIC-8]
GO [TSSOP-16]
ABV
ABV
000
000
RE
RE
Legend:
Temperature Code:
Package Code:
Option Code:
E for Temperature Range -40°C to 85°C
K for Temperature Range -40°C to 125°C
L for Temperature Range -40°C to 150°C
DC for SOIC-8 Package
GO for TSSOP-16 Package (Dual Die – Full Redundant)
XXX-000 – Standard
Packing Form:
RE for Reel
SP for sample pack
Ordering example:
MLX90367LGO-ABU-000-RE
1
See your sales representative for more details.
MLX90367
Rev 5.2
Page 1 of 36
Datasheet
Dec. 15, 15
MLX90367
Triaxis Position Sensor IC feat. SENT
1. Functional Diagram
VDIG
DSP
Reg
VX
-
VY
VZ
M
U
X
G
Rev.Pol.
&
OverVolt.
VDD
VSS
A
D
µC
R
O
M
F/W
RAM
Out (SENT)
EEP
ROM
Figure 1: MLX90367 Block Diagram
2. Description
The MLX90367 is a monolithic sensor IC sensitive to the flux density applied orthogonally and parallel to
the IC surface.
The MLX90367 is sensitive to the three components of the flux density applied to the IC (i.e. BX, BY and
BZ). This allows the MLX90367 with the correct magnetic circuit to decode the absolute position of any
moving magnet (e.g. rotary position from 0 to 360 Degrees or linear displacement, stroke - Figure 2). It
enables the design of novel generation of non-contacting position sensors that are frequently required for
both automotive and industrial applications.
MLX90367 provides SENT Frames encoded according the Throttle sensor format or Secure Sensor
format. The circuit delivers enhanced serial messages providing error codes, and user-defined values.
Figure 2: Typical application of MLX90367 - Linear
MLX90367
Rev 5.2
Page 2 of 36
Datasheet
Dec. 15, 15
MLX90367
Triaxis Position Sensor IC feat. SENT
TABLE of CONTENTS
FEATURES AND BENEFITS ....................................................................................................................... 1
APPLICATIONS ............................................................................................................................................ 1
ORDERING INFORMATION......................................................................................................................... 1
1.
FUNCTIONAL DIAGRAM ...................................................................................................................... 2
2.
DESCRIPTION ....................................................................................................................................... 2
3.
GLOSSARY OF TERMS − ABBREVIATIONS − ACRONYMS ............................................................ 5
4.
PINOUT .................................................................................................................................................. 5
5.
ABSOLUTE MAXIMUM RATINGS ....................................................................................................... 6
6.
DESCRIPTION ....................................................................................................................................... 6
7.
MLX90367 ELECTRICAL SPECIFICATION ......................................................................................... 8
8.
MLX90367 ISOLATION SPECIFICATION ............................................................................................ 9
9.
MLX90367 TIMING SPECIFICATION ................................................................................................... 9
9.1.
9.2.
TIMING DIAGRAMS ........................................................................................................................................ 10
APPLICATION DIAGRAM USED FOR RISE AND FALL TIME MEASUREMENT....................................................... 11
10. MLX90367 ACCURACY SPECIFICATION ......................................................................................... 12
11. MLX90367 MAGNETIC SPECIFICATION .......................................................................................... 13
12. MLX90367 CPU & MEMORY SPECIFICATION ................................................................................. 13
13. MLX90367 END-USER PROGRAMMABLE ITEMS ........................................................................... 14
14. SENT OUTPUT PROTOCOL .............................................................................................................. 16
14.1.
GENERALITY ............................................................................................................................................. 16
14.2.
THROTTLE POSITION / SINGLE SECURE FAST CHANNEL ............................................................................ 16
14.2.1. Frame Content...................................................................................................................................... 16
14.2.2. Diagnostic Reporting through the fast channel .................................................................................... 16
14.2.3. Pause pulse........................................................................................................................................... 17
14.2.4. Fast Channel CRC................................................................................................................................ 17
14.3.
SLOW CHANNEL ........................................................................................................................................ 17
14.3.1. Enhanced Serial Message .................................................................................................................... 17
14.3.2. Serial Message Sequence ..................................................................................................................... 18
14.3.3. Serial message sequence period ........................................................................................................... 19
14.3.4. Serial Message Error Code .................................................................................................................. 19
14.4.
START-UP .................................................................................................................................................. 20
14.5.
FIELD SENSING (A2D CONVERSIONS) AND THE FRAME SYNCHRO PULSE................................................... 20
15. DESCRIPTION OF END-USER PROGRAMMABLE ITEMS .............................................................. 21
15.1.
OUTPUT TRANSFER CHARACTERISTIC....................................................................................................... 21
15.1.1. CLOCKWISE Parameter ...................................................................................................................... 21
15.1.2. Discontinuity Point (or Zero Degree Point) ......................................................................................... 22
15.1.3. 3-Pts LNR Parameters (MLX90367 ABU only).................................................................................... 22
15.1.4. 17-Pts LNR Parameters (MLX90367 ABV only) .................................................................................. 23
15.1.5. CLAMPING Parameters ...................................................................................................................... 23
15.2.
IDENTIFICATION ........................................................................................................................................ 24
15.3.
SENSOR FRONT-END ................................................................................................................................. 24
15.3.1. MAPXYZ ............................................................................................................................................... 24
15.3.2. SMISM, k and SEL_k Parameters ........................................................................................................ 24
15.3.3. GAINMIN and GAINMAX Parameters ................................................................................................ 25
MLX90367
Rev 5.2
Page 3 of 36
Datasheet
Dec. 15, 15
MLX90367
Triaxis Position Sensor IC feat. SENT
15.4.
15.5.
15.6.
FILTER ...................................................................................................................................................... 26
DIAGNOSTIC FEATURES ............................................................................................................................ 26
EEPROM ENDURANCE ............................................................................................................................. 26
16. MLX90367 SELF DIAGNOSTIC .......................................................................................................... 27
17. RECOMMENDED APPLICATION DIAGRAMS .................................................................................. 29
17.1.
17.2.
WIRING WITH THE MLX90367 IN SOIC-8 PACKAGE ................................................................................ 29
WIRING WITH THE MLX90367 IN TSSOP-16 PACKAGE ........................................................................... 29
18. STANDARD INFORMATION REGARDING MANUFACTURABILITY OF MELEXIS PRODUCTS
WITH DIFFERENT SOLDERING PROCESSES ........................................................................................ 30
19. ESD PRECAUTIONS ........................................................................................................................... 30
20. PACKAGE INFORMATION ................................................................................................................. 31
20.1.
20.2.
20.3.
20.4.
20.5.
20.6.
SOIC8 - PACKAGE DIMENSIONS ............................................................................................................... 31
SOIC8 - PINOUT AND MARKING ............................................................................................................... 31
SOIC8 - SENSITIVE SPOT POSITIONING ..................................................................................................... 32
TSSOP16 - PACKAGE DIMENSIONS .......................................................................................................... 33
TSSOP16 - PINOUT AND MARKING .......................................................................................................... 34
TSSOP16 - SENSITIVE SPOT POSITIONING ................................................................................................ 34
21. DISCLAIMER ....................................................................................................................................... 36
MLX90367
Rev 5.2
Page 4 of 36
Datasheet
Dec. 15, 15
MLX90367
Triaxis Position Sensor IC feat. SENT
3. Glossary of Terms − Abbreviations − Acronyms
Gauss (G), Tesla (T): Units for the magnetic flux density − 1 mT = 10 G
TC: Temperature Coefficient (in ppm/Deg.C.)
NC: Not Connected
SENT: Single Edge Nibble Transmission
ADC: Analog-to-Digital Converter
LSB: Least Significant Bit
MSB: Most Significant Bit
DNL: Differential Non-Linearity
INL: Integral Non-Linearity
RISC: Reduced Instruction Set Computer
ASP: Analog Signal Processing
DSP: Digital Signal Processing
CoRDiC: Coordinate Rotation Digital Computer (i.e. iterative rectangular-to-polar transform)
EMC: Electro-Magnetic Compatibility
4. Pinout
Pin #
SOIC-8
TSSOP-16
1
VDD
VDIG1
2
Test 0
VSS1 (Ground1)
3
Test 2
VDD1
4
Not Used
Test 01
5
OUT
Test 22
6
Test 1
OUT2
7
VDIG
Not Used2
8
VSS (Ground)
Test 12
9
VDIG2
10
VSS2 (Ground2)
11
VDD2
12
Test 02
13
Test 21
14
Not Used1
15
OUT1
16
Test 11
For optimal EMC behavior, it is recommended to connect the unused pins (Not Used and Test) to the
Ground (see section 16).
MLX90367
Rev 5.2
Page 5 of 36
Datasheet
Dec. 15, 15
MLX90367
Triaxis Position Sensor IC feat. SENT
5. Absolute Maximum Ratings
Parameter
Value
Supply Voltage, VDD (overvoltage)
+ 24 V
Reverse Voltage Protection
− 12 V (breakdown at -14 V)
Positive Output Voltage
+ 18 V (breakdown at 24 V)
Output Current (IOUT)
+ 30 mA (in breakdown)
Reverse Output Voltage
− 0.3 V
Reverse Output Current
− 50 mA (in breakdown)
Operating Ambient Temperature Range, TA
− 40°C … + 150°C
Storage Temperature Range, TS
− 40°C … + 150°C
Magnetic Flux Density
±1T
Exceeding the absolute maximum ratings may cause permanent damage.
maximum rated conditions for extended periods may affect device reliability.
Exposure to absolute
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:
α = ∠(V1 , k ⋅ V2 )
where alpha is the magnetic angle 0, the channel1 payload contains the value Channel1 = (4088 + SERIALERROR])
14.2.2.3. Diagnostic Reporting Time
The Diagnostic Reporting Time is programmable (defined as multiple of a macro-cycle unit time).
A macro-cycle is a sequence of 20 angle acquisitions, and has a duration of approximately 6 ms.
14.2.2.4. Diagnostic Debouncing
The Diagnostic Reporting is Debounced. The debouncing paramater are user-programmable, by steps of
approximately 6 ms.
14.2.3. Pause pulse
A pause pulse, as defined by the standard, is present at the end of every frame.
The pause pulse mode can be disabled.
The pause pulse lenght is adjusted by the circuit so that the frame period is constant.
The field sensing and the frame synchro pulse are in sync.
14.2.4. Fast Channel CRC
The 90367 features the new recommended implementation and optional the legacy implementation
14.3. Slow Channel
14.3.1. Enhanced Serial Message
The circuit encodes the slow messages according the Enhanced Serial Message Format as specified at
Chapter 5.2.4.3 of the SENT norm, except for the following restriction:
The configuration bit is always 0, meaning that the payload consists in 12-bit data and 8-bit message ID.
MLX90367
Rev 5.2
Page 17 of 36
Datasheet
Dec. 15, 15
MLX90367
Triaxis Position Sensor IC feat. SENT
14.3.2. Serial Message Sequence
The circuit complies with the following sub-set specifications of the norm for pressure sensors
(The norm for the angular sensor case does not specify the serial message format)
Table 1: Serial Message Sequence
#
8bit ID
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
01
06
01
05
01
03
01
07
01
08
01
09
01
0A
01
23
01
29
01
2A
01
2B
01
2C
25
26
27
28
29
30
31
32
33
34
01
90
01
91
01
92
01
93
01
94
Diagnostic Error Codes
OEM Code #1
Diagnostic Error Codes
OEM Code #2
Diagnostic Error Codes
OEM Code #3
Diagnostic Error Codes
OEM Code #4
Diagnostic Error Codes
OEM Code #5
RAM
Prog.
RAM
Prog.
RAM
Prog.
RAM
Prog.
RAM
Prog.
35
36
01
95
Diagnostic Error Codes
OEM Code #6
RAM
Prog.
EE_SENT OEM CODE6
Diagnostic Error Codes
OEM Code #7
RAM
Prog.
EE_SENT OEM CODE7
37
38
39
40
01
96
01
97
Item
12 bit data
RAM
Diagnostic Error Codes
Prog.
SENT standard revision
RAM
Diagnostic Error Codes
Prog.
Manufacturer code
RAM
Diagnostic Error Codes
Prog.
Channel 1 / 2 Sensor type
RAM
Diagnostic Error Codes
Prog.
Fast channel 1 -X1
RAM
Diagnostic Error Codes
Prog.
Fast channel 1 -X2
RAM
Diagnostic Error Codes
Prog.
Fast channel 1 -Y1
RAM
Diagnostic Error Codes
Prog.
Fast channel 1 -Y2
RAM
Diagnostic Error Codes
RAM
TEMP Sensor
RAM
Diagnostic Error Codes
Prog.
Sensor ID #1
RAM
Diagnostic Error Codes
Prog.
Sensor ID #2
RAM
Diagnostic Error Codes
Prog.
Sensor ID #3
RAM
Diagnostic Error Codes
Prog.
Sensor ID #4
Optional Part ( EE_ExtendedSequence = 1 )
Diagnostic Error Codes
OEM Code #8
RAM
Prog.
Comments
Described at next chapter
EE_SENT rev
EE_SENT Man Code
EE_SENT Sensor type
EE_SENTChannel X1
EE_SENTChannel X2
EE_SENTChannel Y1
EE_SENTChannel Y2
EE_SENT Sensor ID1
EE_SENT Sensor ID2
EE_SENT Sensor ID3
EE_SENT Sensor ID4
Described at next chapter
EE_SENT OEM CODE1
EE_SENT OEM CODE2
EE_SENT OEM CODE3
EE_SENT OEM CODE4
EE_SENT OEM CODE5
EE_SENT OEM CODE8
The first part (positions 1 to 24) provides the Error Code and the Sensor ID alternatively.
MLX90367
Rev 5.2
Page 18 of 36
Datasheet
Dec. 15, 15
MLX90367
Triaxis Position Sensor IC feat. SENT
The second part (positions 24 to 40) is optional as a whole enabled with EEPROM bit
EE_ExtendedSequence.
This second part consists of the error code (8 occurences), 8 OEM -defined Code
The temperature can be derived from SENT ID 23, TEMP sensor, with the following equation:
SENT@ ID 23 = 8 * (T[C] – 35[C]) + 865 lsb12
The accuracy of the actual Temperature is = ± 10 DegC.
14.3.3. Serial message sequence period
Sequence Length
(serial message count)
Sequence Length
(frame count)
Sequence Period
(ms, typical)
24
432
381
40
720
636
14.3.3.1. Error Code Rate
The Error Code are on purpose transmitted every second message, to maximize the rate, which equals
then 36 SENT frames.
14.3.4. Serial Message Error Code
The list of error and status messages transmitted in the 12-bit Enhanced Serial Message data field when
Enhance Serial Message ID is $01 is given in the following Table.
12 Bit Data
Diagnostic
$000
No error
$801
GainOOS
Comments
Front-end Gain code Out-of-spec (too low, too high)
$808
ADCSatura
Diag
$810
ADCMonitor
ADC monitor
$820
VanaMoni
Analog Internal Supply Too Low
$840
VddMoni
External Supply Too Low
$880
Rough Offset
Front-end Rough Offset too low, too high
$900
TempMonitor
Temperature Sensor monitor
In case multiple errors occur, then the resulting 12 bit enhanced serial message data will be the OR-operation of the
individual data values. Example $809 = GainOOS + ADCsatura
MLX90367
Rev 5.2
Page 19 of 36
Datasheet
Dec. 15, 15
MLX90367
Triaxis Position Sensor IC feat. SENT
14.4. Start-up
During the chip initialization, the output remains high until the circuit emits four initialization frames (all 6
data nibble zero). The fifth frame is not an initialization frame but a valid frame containing a measured
angle. See also section 9 “Timing specifications”. The first four frames conform to the SENT specification
and include a valid CRC.
14.5. Field sensing (A2D conversions) and the frame Synchro pulse
By default setting of the Timer period and Filter =1, the digital angle (fast channel payload) results of the
average of two angles.
These angles are themselves computed from 4 ADCs values.
The time between the ADCs and the frame synchro pulse is constant.
As a result, the phase delay between the magnetic field angle and the SENT synchro pulse is constant,
allowing filtering at the ECU side.
See also section 9 “Timing specifications”.
MLX90367
Rev 5.2
Page 20 of 36
Datasheet
Dec. 15, 15
MLX90367
Triaxis Position Sensor IC feat. SENT
15.
Description of End-User Programmable Items
15.1. Output Transfer Characteristic
To define the transfer function (LNR):
Parameter
Value
Unit
CounterClockWise
1
ClockWise
LSB
DP
0 … 359.9999
deg
LNR_A_X
LNR_B_X
LNR_C_X
0 … 359.9999
deg
LNR_A_Y
LNR_B_Y
LNR_C_Y
0 … 100
%
LNR_S0
LNR_A_S
LNR_B_S
LNR_C_S
-17… 0 … 17
%/deg
CLAMP_LOW
0 … 100
%
CLAMP_HIGH
0 … 100
%
CLOCKWISE
0
15.1.1. CLOCKWISE Parameter
The CLOCKWISE parameter defines the magnet rotation direction.
•
•
CCW is the defined by the 1-4-5-8 pin order direction for the SOIC8 package and 1-8-9-16 pin
order direction for the TSSOP16 package.
CW is defined by the reverse direction: 8-5-4-1 pin order direction for the SOIC8 and 16-9-8-1 pin
order direction for the TSSOP16 package.
Refer to the drawing in the sensitive spot positioning sections (Section 20.3)
MLX90367
Rev 5.2
Page 21 of 36
Datasheet
Dec. 15, 15
MLX90367
Triaxis Position Sensor IC feat. SENT
15.1.2. Discontinuity Point (or Zero Degree Point)
The Discontinuity Point defines the 0° point on the circle. The discontinuity point places the origin at any
location of the trigonometric circle. The DP is used as reference for all the angular measurements.
360°
0°
The placement of the discontinuity
point (0 point) is programmable.
Figure 8: Discontinuity Point Positioning
15.1.3. 3-Pts LNR Parameters (MLX90367 ABU only)
The LNR parameters, together with the clamping values, fully define the relation (the transfer function)
between the digital angle and the output signal.
The shape of the MLX90367 transfer function from the digital angle value to the output voltage is
described by the drawing below. Six segments can be programmed but the clamping levels are
necessarily flat.
Two, three, or even five calibration points are then available, reducing the overall non-linearity of the IC by
almost an order of magnitude each time. Three or five point calibration will be preferred by customers
looking for excellent non-linearity figures. Two-point calibrations will be preferred by customers looking for
a cheaper calibration set-up and shorter calibration time.
Figure 9: 3 points linearity correction
MLX90367
Rev 5.2
Page 22 of 36
Datasheet
Dec. 15, 15
MLX90367
Triaxis Position Sensor IC feat. SENT
15.1.4. 17-Pts LNR Parameters (MLX90367 ABV only)
The LNR parameters, together with the clamping values, fully define the relation (the transfer function)
between the digital angle and the output signal.
The shape of the MLX90367 transfer function from the digital angle value to the output voltage is
described by the drawing below. In the 16-Pts mode, the output transfer characteristic is Piece-WiseLinear (PWL).
Figure 10: Input range from 65.5° up to 360°
All the Y-coordinates can be programmed from -50% up to +150% to allow clamping in the middle of one
segment (like on the figure), but the output value is limited to CLAMPLOW and CLAMPHIGH values.
Between two consecutive points, the output characteristic is interpolated.
The parameter W determines the input range on which the 17 points (16 segments) are uniformly spread:
W
Range
∆x
W
Range
∆x
0 (0000b)
360.0deg
22.5deg
8
180.0deg
11.3deg
1
320.0deg
20.0deg
9
144.0deg
9.0deg
2
288.0deg
18.0deg
10
120.0deg
7.5deg
3
261.8deg
16.4deg
11
102.9deg
6.4deg
4
240.0deg
15.0deg
12
90.0deg
5.6deg
5
221.5deg
13.8deg
13
80.0deg
5.0deg
6
205.7deg
12.9deg
14
72.0deg
4.5deg
7
192.0deg
12.0deg
15
(1111b)
65.5deg
4.1deg
Outside of the selected range, the output will remain in clamping levels.
15.1.5. CLAMPING Parameters
The clamping levels are two independent values to limit the output voltage range. The CLAMPLOW
parameter adjusts the minimum output code. The CLAMPHIGH parameter sets the maximum output
code. Both parameters have 16 bits of adjustment and are available for both LNR modes.
MLX90367
Rev 5.2
Page 23 of 36
Datasheet
Dec. 15, 15
MLX90367
Triaxis Position Sensor IC feat. SENT
15.2. Identification
Parameter
Value
MELEXISID1
MELEXISID2
MELEXISID3
CUSTOMERID1
CUSTOMERID2
CUSTOMERID3
0 … 65535
0 … 65535
0 … 65535
0 … 65535
0 … 65535
0 … 65535
Identification number: 48 bits (3 words) freely useable by Customer for traceability purpose.
15.3. Sensor Front-End
Parameter
Value
MAPXYZ
0 .. 3
SMISM
0 .. 32768
K
0 .. 32768
SEL_k
0 or 1
GAINMIN
GAINMAX
GAINSATURATION
0 … 41
0 … 41
0.. 1
15.3.1. MAPXYZ
The MAPXYZ parameter defines which fields are used to calculate the angle. The different possibilities
are described in the tables below.
This 2 bits value selects the first (B1) and second (B2) field components according the table below.
MAPXYZ
0 – 00b
1 – 01b
2 – 10b
3 – 11b
B1
X
Zx
Y
Y
B2
Y
X
Zx
Zy
Angular
XY mode
XZx mode
YZx mode
YZy mode
MAPXYZ = 3 is not recommended.
15.3.2. SMISM, k and SEL_k Parameters
(i) SMISM
When the mapping (B1=X, B2=Y) is selected, SMSIM defines the sensitivity mismatch factor that is
applied on B1, B2; When another B1, B2 mapping is selected, this parameter is “don’t care”.
This parameter is trimmed at factory; Melexis strongly recommends TO NOT overwrite it for optimal
performances.
MLX90367
Rev 5.2
Page 24 of 36
Datasheet
Dec. 15, 15
MLX90367
Triaxis Position Sensor IC feat. SENT
(ii) k
When the mapping (B1=X, B2=Y) is NOT selected, k defines the sensitivity mismatch factor that is applied
on B1or B2 (according to parameter SEL_k – see below). When the mapping (B1=X, B2=Y) is selected,
this parameter is “don’t care”.
This parameter is trimmed at factory for mapping (B1=Z, B2=X). Melexis recommends to fine trim it when
a smaller linearity error (Le) is required and a different mapping than (B1=X, B2=Y) is selected.
(iii) SEL_k
When the mapping (B1=X, B2=Y) is NOT selected, SEL_k defines the component on which the sensitivity
mismatch factor k (see above): SEL_k = 0 means B1→ k ⋅ B1 and SEL_k = 1 means B2 → k ⋅ B2.
15.3.3. GAINMIN and GAINMAX Parameters
GAINMIN and GAINMAX define the thresholds on the gain code outside which the fault “GAIN out of
Spec.” is set;
If GAINSATURATION is set, then the virtual gain code is saturated at GAINMIN and GAINMAX, and no
Diagnostic fault is set since the saturations applies before the Diag. check.
MLX90367
Rev 5.2
Page 25 of 36
Datasheet
Dec. 15, 15
MLX90367
Triaxis Position Sensor IC feat. SENT
15.4. Filter
Parameter
Value
FILTER
0, 1, 2
The MLX90367 features a filter that is enabled when FILTER = 1 or 2.
The filter is of type “moving average”. It averages the two most recent internal angle values in case
FILTER=1 and the four most recent internal angle values in case FILTER=1
When the filter is enabled, the SENT data holds the average of the two or 4 most recent internal angles.
We recommend to enable the filter, in order to benefit from a noise reduction of 30% compared to the
case FILTER = 0. Given that two angle values are computed per each SENT frame, the latency increases
in this case only marginally.
Filter = 0 corresponds to no filtering, and may be selected to optimize the latency (by about 10%),
whenever the latter is system-critical (e.g. stability of a close-loop system).
15.5. Diagnostic Features
Refer to Application_note_Diagnostic_Behavior_90367 for EE_CRC_Enable function description and for
Diagnostic features which can be enabled at user.
It is recommended to enable the diagnostic features for safety critical applications.
15.6. EEPROM endurance
Although the EEPROM is used for Calibration Data Storage (similarly to an OTPROM), the MLX90367
embedded EEPROM is qualified to guarantee an endurance of minimum 1000 write cycles at 125˚C for
(engineering/calibration purpose).
MLX90367
Rev 5.2
Page 26 of 36
Datasheet
Dec. 15, 15
MLX90367
Triaxis Position Sensor IC feat. SENT
16.
MLX90367 Self Diagnostic
The MLX90367 provides numerous self-diagnostic features. Those features increase potentially the
functional safety of safety-related systems as it reduces the risk of erroneous angle reporting in case of
internal or external failure modes (“fail-safe”).
Diagnostic Item
Start-up phase Diagnostics
Action
Effect on Output
Type
Monitoring Rate
Reporting Rate
Fail-safe mode **
** CPU reset after 120ms
Fail-safe mode **
** CPU reset after 120ms
Start-up on Hold **
** CPU reset after 120ms
Diagnostic low/ high
Reporting (optional)
Diagnostic low/ high
Reporting (optional)
Diagnostic low/high
Digi HW
n/applicable (startup only)
n/applicable (startup only)
n/applicable (startup only)
n/applicable (start-up only)
PTC entry
Output in HighImpedance
Environ
n/applicable (startup only)
n/applicable (start-up only)
Fail-safe mode **
** CPU reset after 120ms
Fail-safe mode **
** CPU reset after 120ms
CPU reset
Diagnostic low//high
Reporting (optional)
Diagnostic low/high
Reporting (optional)
--
Digi HW
800ms
800ms
Digi HW
10ms
10ms
Digi HW
120ms
n/a
Debouncing (programmable
SENT Status bit0 = 1
(optional)
Environ
&Analog
5/DSP
Debouncing (programmable)
SENT Status bit0 = 1
(optional)
Environ
&Analog
1/DSP
Saturation (optional)
Gain Saturated @
GAINMIN-GAINMAX
Environ
&Analog
n/applicable
Not a diagnostic
Debouncing (programmable)
SENT Status bit0 = 1
(optional)
Analog
HW
1/DSP
Supply Debouncing
(programmable)
SENT Status bit0 = 1
(optional)
Environ
&Analog
1/DSP
PTC entry after PTC
Debouncing
Output in HighImpedance
Environ
2ms
6ms
x
Diag_Debounce_Thresh
Diag_Debounce_Stepup
6ms
x
Diag_Debounce_Thresh
Diag_Debounce_Stepup
n/applicable
Not a diagnostic
6ms
x
Diag_Debounce_Thresh
Diag_Debounce_Stepup
6ms
x
Diag_Debounce_Thresh
Diag_Debounce_Stepup
2ms
Debouncing (programmable)
SENT Status bit0 = 1
(optional)
Analog
1/DSP
Saturate value used for the
No effect
Temperature > 170degC (± 20)
compensation to -40degC and
Temperature < -60degC (± 20)
+150degC resp.
Hardware Diagnostics ( continuously checked by dedicated Logic )
Read/Write Access out of
Fail-safe mode **
Diagnostic Low/High
physical memory
** CPU reset after 120ms
Write Access to protected area
Fail-safe mode **
Diagnostic low/high
(IO and RAM Words)
** CPU reset after 120ms
Fail-safe mode **
Diagnostic low/high
Unauthorized Mode Entry
** CPU reset after 120ms
EEPROM Error Correcting
(Transparent) Error
no effect
Code ( Hamming correction )
Correction
Environ
&Analog
6ms
x
Diag_Debounce_Thresh
Diag_Debounce_Stepup
n/applicable
Not a diagnostic
n/a immediate
Diagnostic
n/a immediate
Diagnostic
n/a immediate
Diagnostic
n/a.
n/a
immediate Diagnostic
n/a
immediate Diagnostic
n/a
immediate Diagnostic
n/a
RAM March C- 10N Test
Watchdog BIST
Under Voltage Monitoring
SUPPLYMONI =
(MT3VB) OR (MT4VB)
Over Voltage Monitoring
MT7V
BG Loop Diagnostics
ROM 16bit checksum
( continuous )
EEPROM 8 bit CRC Check
(continuous)
Watchdog
( continuous )
DSP Loop Diagnostics
ADC Clipping
ADCCLIP
Virtual Gain Code Out-of-spec
GAINOOS
Virtual Gain Code Saturation
[GAINMIN..GAINMAX]
ADC Monitor (Analog to Digital
Converter)
ADCMONI
Under Voltage Monitoring
SUPPLYMONI =
(MT3VB) OR (MT4VB)
Over Voltage Monitoring
MT7V
Temperature Sensor Monitor
TEMPMONI
MLX90367
Rev 5.2
Digi HW
Environ
&Analog
Digi HW
Digi HW
Digi HW
Digi HW
Page 27 of 36
n/applicable (start-up only)
n/applicable (start-up only)
Datasheet
Dec. 15, 15
MLX90367
Triaxis Position Sensor IC feat. SENT
Hardware Diagnostics ( continuously checked by dedicated Analog circuits )
CPU Reset
Pull down load =>
on recovery
Diagnostic High
Broken VSS
Pull up load =>
Diagnostic High
CPU Reset
Pull down load =>
on recovery
Diagnostic Low
Broken VDD
Pull up load =>
Diagnostic Low
Start-up on Hold
Diagnostic low/high
Resistive Cable Test
MLX90367
Rev 5.2
Page 28 of 36
Environ
n/a immediate
Diagnostic
n/a
immediate Diagnostic
Environ
n/a immediate
Diagnostic
n/a
immediate Diagnostic
Environ
n/a immediate
Diagnostic
n/a
immediate Diagnostic
Datasheet
Dec. 15, 15
MLX90367
Triaxis Position Sensor IC feat. SENT
17.
Recommended Application Diagrams
17.1. Wiring with the MLX90367 in SOIC-8 Package
R1
VDD
1
VDD
Optimal EMC/ESD performances
C1, C2
1nF
Close to IC terminals
C3, C4 ,
100nF
Close to connector
C5
2.2nF
Close to connector
R1
10 Ω
Recommended
R2
120 Ω
Recommended
C4
C1
MLX90367
8
GND
C5
2, 3, 4, 6
VSS
Test x
Out
VDIG
C2
5
Output
7
R2
C3
Figure 11: Recommended wiring for the MLX90367 in SOIC8 package
17.2. Wiring with the MLX90367 in TSSOP-16 Package
R11
VDD1
VDD1
C14
C11, C12
C21, C22
1nF
Close to IC
terminals
C13, C23,
100nF
Close to IC
terminals
Close to
connector
100nF
C15
C25
2.2nF
Close to
connector
R11
R21
10 Ω
Recommended
4,13,16,14
VSS1
Test x1
Out1
VDIG1
C12
1
15
Output1
R12
R21
VDD2
C13
11
VDD2
C24
C21
10
GND2
120 Ω
MLX90367
2
C15
C24, C14
R12
R22
C11
GND1
Optimal EMC/ESD performance
3
Recommended
C25
5,7,8,12
VSS2
Test x2
Out2
VDIG2
C22
6
Output2
9
R22
C23
Figure 12: Recommended wiring for the MLX90367 in TSSOP16 package (dual die)
MLX90367
Rev 5.2
Page 29 of 36
Datasheet
Dec. 15, 15
MLX90367
Triaxis Position Sensor IC feat. SENT
18. Standard information regarding manufacturability of Melexis
products with different soldering processes
Our products are classified and qualified regarding soldering technology, solderability and moisture
sensitivity level according to following test methods:
Reflow Soldering SMD’s (Surface Mount Devices)
•
•
IPC/JEDEC J-STD-020
Moisture/Reflow Sensitivity Classification for Nonhermetic Solid State Surface Mount Devices
(classification reflow profiles according to table 5-2)
EIA/JEDEC JESD22-A113
Preconditioning of Nonhermetic Surface Mount Devices Prior to Reliability Testing
(reflow profiles according to table 2)
Wave Soldering SMD’s (Surface Mount Devices) and THD’s (Through Hole Devices)
•
•
EN60749-20
Resistance of plastic- encapsulated SMD’s to combined effect of moisture and soldering heat
EIA/JEDEC JESD22-B106 and EN60749-15
Resistance to soldering temperature for through-hole mounted devices
Iron Soldering THD’s (Through Hole Devices)
•
EN60749-15
Resistance to soldering temperature for through-hole mounted devices
Solderability SMD’s (Surface Mount Devices) and THD’s (Through Hole Devices)
•
EIA/JEDEC JESD22-B102 and EN60749-21
Solderability
For all soldering technologies deviating from above mentioned standard conditions (regarding peak
temperature, temperature gradient, temperature profile etc) additional classification and qualification tests
have to be agreed upon with Melexis.
The application of Wave Soldering for SMD’s is allowed only after consulting Melexis regarding assurance
of adhesive strength between device and board.
Melexis recommends reviewing on our web site the General Guidelines soldering recommendation
(http://www.melexis.com/Quality_soldering.aspx) as well as trim&form recommendations
(http://www.melexis.com/Assets/Trim-and-form-recommendations-5565.aspx).
Melexis is contributing to global environmental conservation by promoting lead free solutions. For more information
on qualifications of RoHS compliant products (RoHS = European directive on the Restriction Of the use of certain
Hazardous Substances) please visit the quality page on our website: http://www.melexis.com/quality.aspx
19.
ESD Precautions
Electronic semiconductor products are sensitive to Electro Static Discharge (ESD).
Always observe Electro Static Discharge control procedures whenever handling semiconductor products.
MLX90367
Rev 5.2
Page 30 of 36
Datasheet
Dec. 15, 15
MLX90367
Triaxis Position Sensor IC feat. SENT
20.
Package Information
20.1. SOIC8 - Package Dimensions
1.27 TYP
NOTES:
3.81
3.99**
4.80
4.98*
5.80
6.20**
All dimensions are in millimeters (anlges in degrees).
* Dimension does not include mold flash, protrusions or
gate burrs (shall not exceed 0.15 per side).
** Dimension does not include interleads flash or protrusion
(shall not exceed 0.25 per side).
*** Dimension does not include dambar protrusion.
Allowable dambar protrusion shall be 0.08 mm total in
excess of the dimension at maximum material condition.
Dambar cannot be located on the lower radius of the foot.
1.37
1.57
1.52
1.72
0.19
0.25
0°
8°
0.36
0.46***
0.100
0.250
0.41
1.27
20.2. SOIC8 - Pinout and Marking
MLX90367
Rev 5.2
Page 31 of 36
Datasheet
Dec. 15, 15
MLX90367
Triaxis Position Sensor IC feat. SENT
20.3. SOIC8 - Sensitive spot Positioning
CW
8
7
6
5
CCW
X
1.25
1.65
1
2
3
0.46 +/- 0.06
4
1.96
2.26
Y
The MLX90367 is an absolute angular position sensor but the linearity error (See section 10) does not
include the error linked to the absolute reference 0 Deg (which can be fixed in the application through the
discontinuity point).
MLX90367
Rev 5.2
Page 32 of 36
Datasheet
Dec. 15, 15
MLX90367
Triaxis Position Sensor IC feat. SENT
20.4. TSSOP16 - Package Dimensions
0.65 ± 0.04
12O REF
0.20 ± 0.04
DIA 1.0 REF
0.09 MIN
4.30
4.50** 6.4 ± 0.2
0.09 MIN
1.0 REF
12O REF
0.50
0.75
0O
8O
1.0 ± 0.2
1.0 REF
0.85
0.95
4.90
5.10*
1.1 MAX
0.19
0.30***
0.09
0.20
0.05
0.15
NOTES:
All dimensions are in millimeters (anlges in degrees).
* Dimension does not include mold flash , protrusions or gate burrs (shall not exceed 0.15 per side).
** Dimension does not include interleads flash or protrusion (shall not exceed 0.25 per side).
*** Dimension does not include dambar protrusion. Allowable dambar protrusion shall be 0.08 mm total in excess of the dimension at
maximum material condition. Dambar cannot be located on the lower radius of the foot.
REF: Reference dimensions as stated in packaging supplier POD , based on JEDEC.
MLX90367
Rev 5.2
Page 33 of 36
Datasheet
Dec. 15, 15
MLX90367
Triaxis Position Sensor IC feat. SENT
20.5. TSSOP16 - Pinout and Marking
20.6. TSSOP16 - Sensitive spot Positioning
CW
X2
16
9
Die 1
Die 2
Y2
Y1
0.30 +/- 0.06
CCW
1.95
2.45
1
8
1.84
2.04
X1
2.76
2.96
MLX90367
Rev 5.2
Page 34 of 36
Datasheet
Dec. 15, 15
MLX90367
Triaxis Position Sensor IC feat. SENT
The MLX90367 is an absolute angular position sensor but the linearity error (See section 10) does not
include the error linked to the absolute reference 0Deg (which can be fixed in the application through the
discontinuity point).
MLX90367
Rev 5.2
Page 35 of 36
Datasheet
Dec. 15, 15
MLX90367
Triaxis Position Sensor IC feat. SENT
21.
Disclaimer
Devices sold by Melexis are covered by the warranty and patent indemnification provisions appearing in
its Term of Sale. Melexis makes no warranty, express, statutory, implied, or by description regarding the
information set forth herein or regarding the freedom of the described devices from patent infringement.
Melexis reserves the right to change specifications and prices at any time and without notice. Therefore,
prior to designing this product into a system, it is necessary to check with Melexis for current information.
This product is intended for use in normal commercial applications. Applications requiring extended
temperature range, unusual environmental requirements, or high reliability applications, such as military,
medical life-support or life-sustaining equipment are specifically not recommended without additional
processing by Melexis for each application.
The information furnished by Melexis is believed to be correct and accurate. However, Melexis shall not
be liable to recipient or any third party for any damages, including but not limited to personal injury,
property damage, loss of profits, loss of use, interrupt of business or indirect, special incidental or
consequential damages, of any kind, in connection with or arising out of the furnishing, performance or
use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow
out of Melexis’ rendering of technical or other services.
© 2015 Melexis N.V. All rights reserved.
For the latest version of this document, go to our website at
www.melexis.com
Or for additional information contact Melexis Direct:
Europe, Africa, Asia:
America:
Phone: +32 1367 0495
E-mail: sales_europe@melexis.com
Phone: +1 248 306 5400
E-mail: sales_usa@melexis.com
ISO/TS 16949 and ISO14001 Certified
Melexis internal document number
Doc# 3901090367 rev.003
MLX90367
Rev 5.2
Page 36 of 36
Datasheet
Dec. 15, 15
工商网监
湘ICP备2023018690号
