MLX90333KDC ETC2 [List of Unclassifed Manufacturers], MLX90333KDC Datasheet

Page 1

... Applications 3D Position Sensor 4-Way Scroll Key Man Machine Interface Device Ordering Information Part No. Temperature Suffix K (− 40° 125°C) MLX90333 K (− 40° 125°C) MLX90333 Example: MLX90333KDC 1 3901090333 Rev. Preliminary Triaxis 3D-Joystick Position Sensor Joystick Joypad 1 Package Code DC [SOIC-8] GO [TSSOP-16] Page ...

Page 2

Functional Diagram ™ Tria ™ Tria 3901090333 Rev. Preliminary Triaxis 3D-Joystick Position Sensor 3V3 Reg DSP μC D RAM EEP ...

Page 3

Description The MLX90333 is a monolithic sensor IC featuring the Tria⊗is™ Hall technology. Conventional planar Hall technology is only sensitive to the flux density applied orthogonally to the IC surface. The Tria⊗is™ Hall sensor is also sensitive to the ...

Page 4

FEATURES AND BENEFITS ....................................................................................................................... 1 APPLICATIONS............................................................................................................................................ 1 ORDERING INFORMATION......................................................................................................................... 1 1. FUNCTIONAL DIAGRAM...................................................................................................................... 2 2. DESCRIPTION....................................................................................................................................... 3 GLOSSARY OF TERMS − ABBREVIATIONS − ACRONYMS ............................................................ PINOUT.................................................................................................................................................. 6 5. ABSOLUTE MAXIMUM RATINGS ....................................................................................................... 7 6. DETAILED DESCRIPTION.................................................................................................................... 7 ...

Page 5

RESONFAULT Parameter ...................................................................................................................27 14.7.2. EEHAMHOLE Parameter ....................................................................................................................27 14.8. L .........................................................................................................................................................27 OCK 14.8.1. MLXLOCK Parameter .........................................................................................................................27 14.8.2. LOCK Parameter .................................................................................................................................27 15. MLX90333 SELF DIAGNOSTIC.......................................................................................................... 28 16. RECOMMENDED APPLICATION DIAGRAMS .................................................................................. 30 16. NALOG UTPUT IRING WITH THE ...

Page 6

Glossary of Terms Gauss (G), Tesla (T): Units for the magnetic flux density − TC: Temperature Coefficient (in ppm/Deg.C.) NC: Not Connected PWM: Pulse Width Modulation % : Duty Cycle of the output signal ...

Page 7

Absolute Maximum Ratings Parameter Supply Voltage, V Reverse Voltage Protection Positive Output Voltage (Analog or PWM) Both outputs Output Current (I OUT Reverse Output Voltage Both outputs Reverse Output Current Both outputs O ...

Page 8

In summary, along X-axis, the left Hall plate measures “ ”. Similarly, along the Y-axis, the left Hall plate measures “B Z “- ”. Y⊥ Z Through an appropriate signal processing, the Tria⊗is™ sensor front-end reports ...

Page 9

Figure 6 – Magnetic Flux Density – β Deg – B 400 300 200 100 0 -100 -200 -300 -400 -90 Figure 7 – Magnetic Flux Density – ...

Page 10

Figure 8 – ADC Input Signals – β Deg – V 2000 1500 1000 500 0 -500 -1000 -1500 -2000 -90 Figure 9 – ADC Input Signals – ...

Page 11

The conditioned analog signals are converted through an ADC (configurable − bits) and provided to a DSP block for further processing. The DSP stage is based bit RISC micro-controller whose primary function is the ...

Page 12

For instance, the analog output can be programmed for offset, gain and clamping to meet any rotary position sensor output transfer characteristic: Vout(α) = ClampLo Vout(α) = Voffset + Gain × α Vout(α) = ClampHi Vout(β) = ClampLo Vout(β) = ...

Page 13

MLX90333 Electrical Specification DC Operating Parameters at V Temperature suffix (K). Parameter Symbol Nominal Supply Voltage Supply Current (3) POR Level V Output Current Both outputs O & Output Short Circuit Current Both outputs ...

Page 14

As an illustration of the previous table, the MLX90333 fits the typical classification of the output span described on the Figure 10. 100 % ...

Page 15

MLX90333 Isolation Specification DC Operating Parameters Temperature suffix (K). Only valid for the package code GO i.e. dual die version. Parameter Symbol Isolation Resistance 9. MLX90333 Timing Specification DC Operating Parameters at V Temperature suffix (K). ...

Page 16

MLX90333 Accuracy Specification DC Operating Parameters at V Temperature suffix (K). Parameter Symbol ADC Resolution on the raw signals X, Y and Z Offset on the Raw Signals X, Y X0, Y0 and Z Mismatch on the ...

Page 17

Resolution 11. MLX90333 Magnetic Specification DC Operating Parameters Temperature suffix (K). Parameter Symbol Magnetic Flux Density Magnet Temperature Coefficient 12. MLX90333 CPU & Memory Specification The DSP is based bit RISC µController. This CPU ...

Page 18

MLX90333 End-User Programmable Items Parameter MAINMODE Outputs Mode PWMPOL1 PWMPOL2 PWM_Freq ALPHA_POL ALPHA_MOD180 ALPHA_DP ALPHA_DEADZONE ALPHA_S0 ALPHA_X ALPHA_Y ALPHA_S1 BETA_POL BETA_MOD180 BETA_DP BETA_DEADZONE BETA_S0 BETA_X BETA_Y BETA_S1 CLAMP_LOW CLAMP_HIGH 2D XYZ KZ KT FIELDTHRES_LOW FIELDTHRES_HIGH DERIVGAIN FILTER FILTER A1 ...

Page 19

HIGHSPEED GAINMIN GAINMAX EEHAMHOLE RESONFAULT MLXLOCK LOCK 14. Description of End-User Programmable Items 14.1. Output Configuration The parameter MAINMODE defines the output stages configuration MAINMODE 14.2. Output Mode The MLX90333 outputs type is defined by the ...

Page 20

The PWM frequency is selected by the PWM_Freq parameter. Oscillator Mode Low Speed High Speed For instance, in Low Speed Mode, set PWM_Freq = 7000 (decimal) to set the PWM frequency at 500Hz. 14.2.3. Serial Protocol Output Mode The MLX90333 ...

Page 21

Alpha/Beta Discontinuity Point (or Zero Degree Point) The Discontinuity Point defines the zero point of the circle (Alpha or Beta). The discontinuity point places the origin at any location of the trigonometric circle (see Figure 12). For a Joystick ...

Page 22

CLAMPING Parameters The clamping levels are two independent values to limit the output voltage range. The CLAMP_LOW parameter adjusts the minimum output voltage level. The CLAMP_HIGH parameter sets the maximum output voltage level. Both parameters have 16 bits of ...

Page 23

Sensor Front-End Parameter HIGHSPEED GAINMIN GAINMAX FIELDTHRES_MIN FIELDTHRES_MAX 14.5.1. HIGHSPEED Parameter The HIGHSPEED parameter defines the main frequency for the DSP. • HIGHSPEED = 0 selects the Slow mode with a 7 MHz master clock. • HIGHSPEED = 1 ...

Page 24

FILTER Parameter The MLX90333 includes 3 types of filters: • Hysteresis Filter: programmable by the FHYST parameter • Low Pass FIR Filters controlled with the Filter parameter • Low Pass IIR Filter controlled with the Filter parameter and the ...

Page 25

Figure 13 - Step Response and Noise Response for FIR (No 3) and FHYST=10 14.6.3. IIR Filters The IIR Filter is enabled with ...

Page 26

Filter No Type Title 90% Response Time 11 Efficiency RMS (dB) 9.9 Efficiency P2P (dB) 12.9 Coefficient A1 26112 Coefficient A2 10752 The Figure 15 shows the response of the filter to a Gaussian noise with default coefficient A1 and ...

Page 27

Programmable Diagnostic Settings Parameter RESONFAULT EEHAMHOLE 14.7.1. RESONFAULT Parameter This RESONFAULT parameter disables the soft reset when a fault is detected by the CPU when the parameter is set default, the parameter is set to “0” ...

Page 28

MLX90333 Self Diagnostic The MLX90333 provides numerous self-diagnostic features. Those features increase the robustness of the IC functionality as it will prevent the IC to provide erroneous output signal in case of internal or external failure modes (“fail-safe”). ROM ...

Page 29

Fault Mode Fault Mode ADC Monitor (Analog to Digital Set Outputs in Diagnostic low. Converter) Normal Mode with immediate recovery without CPU Reset Undervoltage Mode At Start-Up, wait Until V During operation, CPU Reset after 3 ms debouncing Firmware ...

Page 30

Recommended Application Diagrams 16.1. Analog Output Wiring with the MLX90333 in SOIC Package Vdd Vss MLX90333 Test 1 Vdig NotUsed Test 2 Out 1 Out 2 Figure 16 – Recommended wiring for the MLX90333 in SOIC8 package 16.2. PWM ...

Page 31

Analog Output Wiring with the MLX90333 in TSSOP Package C2 100nF C1 Vdig1 Out2_1 100nF Vss1 Out1_1 Vdd1 MLX90316 C62 100nF Out2_2 Out1_2 C61 100nF Figure 18 – Recommended wiring for the MLX90333 in TSSOP16 package (dual die). 16.4. ...

Page 32

Application Type Supply (V) 5V μCtrl w/o O.D. w/o 3. μCtrl w/o O.D. w/ 3.3V 5V 3.3V μCtrl w/o O.D. 3.3V (23) 5V μCtrl w/ O.D. w/o 3.3V 5V (24) 3.3V μCtrl w/ O.D. 3.3V Table 3 ...

Page 33

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 ...

Page 34

Package Information 19.1. SOIC8 - Package Dimensions 1.27 TYP 4.80 4.98* 0.36 0.46*** 19.2. SOIC8 - Pinout and Marking 8 333Bxx 123456 1 3901090333 Rev. Preliminary Triaxis 3D-Joystick Position Sensor NOTES: All dimensions are in millimeters (anlges in degrees). ...

Page 35

SOIC8 - IMC Positionning 8 COS 1.25 1.65 1 3901090333 Rev. Preliminary Triaxis 3D-Joystick Position Sensor CCW 1.96 2.26 SIN Page MLX90333 0.46 +/- 0.06 Data Sheet May 07 ...

Page 36

TSSOP16 - Package Dimensions 0.65 TYP 1.0 DIA 1.0 1.0 4.90 5.10* 0.19 0.30*** 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 ...

Page 37

TSSOP16 - Pinout and Marking Vdig_1 Vss_1 Vdd_1 Test0_1 _SS_2 Out2_2/SCLK_2 Out1_2/MOSI/MISO_2 Test1_2 19.6. TSSOP16 - IMC Positionning 16 Die 1 SIN 2 1.95 2.45 1 1.84 2.04 COS 1 3901090333 Rev. Preliminary Triaxis 3D-Joystick Position Sensor Test1_1 Out1_1/MOSI/MISO_1 ...

Page 38

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 description regarding the information set forth herein or regarding the ...