MLX91206LDC-CAH-004-TU

MLX91206 IMC-Hall® Current Sensor (Triaxis® Technology) Not recommended for new designs. Similar functionality provided by the MLX91208 , MLX91216 or MLX91218.     Features and Benefits Thermometer output 17 bit ID Number SOIC8 package RoHS compliant Lead free component, suitable for lead free soldering profile 260°C (target), MSL3 Application Examples  Triaxis® Technology  Very high sensitivity due to Integrated Magnetic Concentrator (IMC-Hall®)  Programmable high speed current sensor IC  Wideband: DC to 90kHz  Short response time  Programmable linear transfer characteristic  Selectable  analog ratiometric output  PWM output with 12 bit resolution       DC/AC (inverter) converter DC/DC switched mode power supply Battery Management Smart fuse (over-current detection) BLDC motor (phase current) AC/DC Converters Ordering Information Product Code MLX91206 MLX91206 MLX91206 MLX91206 MLX91206 MLX91206 Temperature Code L (-40°C to 150°C) L (-40°C to 150°C) L (-40°C to 150°C) L (-40°C to 150°C) L (-40°C to 150°C) L (-40°C to 150°C) Package Code DC (SOIC) DC (SOIC) DC (SOIC) DC (SOIC) DC (SOIC) DC (SOIC) Ordering Option Code CAH-001 CAH-002 CAH-003 CAH-004 CAH-021(1) CAH-104(2) Packing form Code TU (Tube) / RE (Reel) Sensitivity Range (Typ.) 210-330mV/mT (270mV/mT) 130-220mV/mT (170mV/mT) 80-140mV/mT (110mV/mT) 60-110mV/mT (77.5mV/mT) 210-330mV/mT (270mV/mT) 0.5-5%DC/mT (1) The MLX91206 sensor is in disabledratiometry mode by default for this version (2) The MLX91206 sensor is in PWM mode by default for this version Ordering example: MLX91206LDC-CAL-001-RE 1 Functional Diagram Figure 1: Block diagram 3901091206 Rev 045 Page 1 Datasheet MLX91206 August 2022 MLX91206 IMC-Hall® Current Sensor (Triaxis® Technology) 2 General Description The MLX91206 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 IMC-Hall® current sensor is sensitive to the flux density applied parallel to the IC surface. This is obtained through an Integrated Magneto-Concentrator (IMC-Hall®) which is deposited on the CMOS die (as an additional back-end step). The IMC-Hall® current sensor is automotive qualified. The product is a single chip Hall sensor which provides an output signal which is proportional to the flux density applied horizontally and is therefore suitable for current measurement. It is ideally used as an open loop current sensor for PCB mounting. (see figure 2). It features small size application design and a simple construction for various current ranges. The transfer characteristic of the MLX91206 is programmable (offset, gain, clamping levels, diagnostic functions…). The output is selectable between analog and PWM. The linear analog output is used for application where a very fast response ( 3 Output Current Output Resistance Output Capacitive Load Cload Output Short Circuit Current Ishort Leakage current Ileak Output Voltage Swing (Linear Range) Vout_pd pull down ≥ 10 kΩ Vout_pu pull up ≥ 10 kΩ Vout_HiZ_pu pull-up RL ≤ 30 kΩ Vout_HiZ_pd pull-down RL ≤ 30 kΩ OUT with pull-down RL ≤ 10 kΩ (3) 5 5 97 OUT with pull-up RL ≤ 30 kΩ (3) OUT with pull-down RL ≤ 30 kΩ (3) OUT with pull-up RL ≤ 30 kΩ (3) Vdd_uvd Detected Voltage (Low to High) Vdd_uvh Hysteresis Vdd_ovd1 Detected Voltage (Low to High) Vdd_ovh1 Hysteresis Vdd_ovd2 Detected Voltage (Low to High) Vdd_ovh2 Hysteresis Clamp_lo Trimming Range Clamp_hi Trimming Range 97 High-impedance mode levels(2) BrokenVss Output Levels(2) BrokenVdd Output Levels(2) Under-voltage detection (2) (4) Over-voltage detection mode 1 (2) (4) Over-voltage detection mode 2 (2) (4) Clamped Output Level Iout -2 Vout = 50% Vdd, RL = 5kΩ Analog Mode PWM Mode Output shorted to Vdd- Permanent Output shorted to Vss - Permanent High impedance mode (2) 5 0 Typ 5 Max 5.5 Units V 7 9 10 12 mA mA 2 1 5 10 50 10 50 Not Destroyed Not Destroyed 5 mA  nF nF 95 95 3 3 3 97 3.15 0.25 7.8 0.8 6.7 0.05 5 (1) 90 3.3 0.3 3.45 0.4 9.5 1.6 7.6 0.5 10 95 (1) uA %Vdd %Vdd %Vdd %Vdd %Vdd %Vdd %Vdd %Vdd V V V V V V %Vdd %Vdd Table 3: General electrical parameter (1) (2) (3) (4) Factory programmed clamping level Refer to chapter Self-diagnostic, table 21. Valid for TEMPOUT with pull-up (min. 30kΩ), pull-down (min. 30kΩ) or not connected According to the figure below Vout Hysteresis Detected Voltage Vdd Figure “Detected voltage and hysteresis definitions” 3901091206 Rev 045 Page 5 Datasheet MLX91206 August 2022 MLX91206 IMC-Hall® Current Sensor (Triaxis® Technology) 7 Magnetic specification 7.1 25 mT version (marking xxH) Operating Parameters TA = -40 to 125degC, Vdd = 4.5 V to 5.5 V, unless otherwise specified. Parameter Nominal Field Range Operational Field Range Symbol Bnom (1) Linearity Error Programmable Sensitivity Max +20 Units mT (2) Sensitivity programming Resolution Min -20 -25 +25 mT Nominal Field Range (25°C) -0.5 +0.5 %FS Operational Field Range (25°C) -0.75 +0.75 %FS Br B = Bop -25 +25 uT S B = Bop , Analog Mode 80 330 mV/mT Sres B = Bop Bop NL Hysteresis, remanent Field Test Conditions Typ 0.1 % Table 4: Magnetic specification 25mT version (high-field version) (1) Above 25 mT, the IMC starts saturating yielding to an increase of the linearity error. (2) The specified programmable sensitivity range is covered by 5 different versions (option codes) Option code (25mT) CAH-001 CAH-002 CAH-003 CAH-004 CAH-021 3901091206 Rev 045 Programmed Sensitivity 270mV/mT 170mV/mT 110mV/mT 77.5mV/mT 270mV/mT Page 6 Sensitivity Range 210 - 330mV/mT 130 - 220mV/mT 80 - 140mV/mT 60 - 110mV/mT 210 - 330mV/mT Datasheet MLX91206 August 2022 MLX91206 IMC-Hall® Current Sensor (Triaxis® Technology) 8 Analog output specification 8.1 Timing specification Operating Parameters TA = -40 to 125degC, Vdd = 4.5 V to 5.5 V (unless otherwise specified) Parameter Step Response Time Bandwidth Power on Delay Ratiometry Cut-off Frequency Symbol Tresp BW TPOD Test Conditions Voq ± 2 V Full Range Vout =100% of FS (BW = 100 Hz) (BW = 1000 Hz) (BW = 10 kHz) (BW = 100 kHz – No filter) Min 50 Fratio Typ 8 70 Max 10 90 Units μs kHz 100 10 5 5 ms ms ms ms 250 Hz Table 5: Timing specification high speed analog output 8.2 Accuracy specification Operating Parameters TA = -40 to 125degC, Vdd = 4.5 V to 5.5 V (unless otherwise specified) Parameter Thermal Offset Drift Thermal Offset Drift(1) Symbol ΔTVoq ΔTVoq Test Conditions Thermal Sensitivity Drift TC RMS Output noise Nrms S = 6 %Vdd/mT (= 300 mV/mT @ Vdd=5V) Voq Ratiometry ΔVoq Voq = 50%Vdd ΔVdd = 10%Vdd Voq Drift – Supply Related(1) ΔVoq Sensitivity Ratiometry Clamped output accuracy Min -0.4 -20 Max +0.4 20 Units %Vdd mV +1.5 %S 0.1 %Vdd 10.2 % Voq = 50%Vdd (Vdd Nominal = 5V) -5 ΔVdd = 10%Vdd 5 mV ΔS ΔVdd = 10%Vdd B = Bop 9.8 10.2 % Clamp_lo Clamp_hi Trimming range: 5-10%Vdd Trimming range: 90-95%Vdd -1 1 %Vdd -1.5 9.8 Typ Table 6: Accuracy specific parameter analog output (1) Applies to CAH-021 version 8.3 Remarks to the achievable accuracy The achievable target accuracy is dependent on user’s end-of-line calibration. The resolution for the offset and offset drift calibration is better than 0.1%Vdd. Trimming capability is higher than the measurement accuracy. End-user calibration can increase the accuracy of the system. 3901091206 Rev 045 Page 7 Datasheet MLX91206 August 2022 MLX91206 IMC-Hall® Current Sensor (Triaxis® Technology) 9 PWM output specification 9.1 Timing specification for the PWM output Operating Parameters TA = -40 to 125degC, Vdd = 4.5 V to 5.5 V (unless otherwise specified) Parameter Main Oscillator Frequency Symbol FOSC PWM Output Frequency FPWM Tick Time (resolution in time domain) tTICK PWM Output Resolution R(PWM) PWM Jitter (1 Sigma) Output Rise Time (10%-90%) Output Fall Time (90%-10%) Clamped Output Level Power-on delay Test Conditions Tolerance  10% Min 900 Typ 1024 Max 1100 Units kHz 110 125 140 Hz 1 µs 12 Bit, Theoretical Jitter free 0.025 %DC J (PWM) FILTCODE = 5 (70 Hz Digital LowPass Filter) 0.01 %DC (1 Sigma) tRISEOD Push-pull mode RL = 4.7 k to 5 V, CL = 10 nF OUTSLOPE = 0 11 µs OUTSLOPE = 1 7 μs OUTSLOPE = 2 4 μs OUTSLOPE = 3 2.5 μs Push-pull or open-drain mode RL = 4.7 k to 5 V, CL = 10 nF OUTSLOPE = 0 14 µs OUTSLOPE = 1 8 μs OUTSLOPE = 2 4.5 μs OUTSLOPE = 3 2.5 μs TFALLOD Clamp_lo Programmable 1 10 %DC Clamp_hi Programmable 90 99 %DC 11 ms TPOD Table 7: Timing specification for the PWM output 3901091206 Rev 045 Page 8 Datasheet MLX91206 August 2022 MLX91206 IMC-Hall® Current Sensor (Triaxis® Technology) 9.2 Magnetic specification for the PWM output Operating Parameters TA = -40 to 125degC, Vdd = 4.5 V to 5.5 V, unless otherwise specified. Parameter Nominal Field Range Operational Field Range Symbol Bnom Test Conditions Min -20 -25 +25 mT Nominal Field Range (25°C) -0.5 +0.5 %FS Operational Field Range (25°C) -0.75 +0.75 %FS Bop (1) Linearity Error NL Typ Max +20 Units mT Hysteresis, remanent Field Br B = Bop -25 +25 uT Programmable Sensitivity S B = Bop 0.5 5 %DC/mT Sensitivity programming Resolution Sres B = Bop 0.1 % Table 9: Magnetic specification 25mT version (high-field version) (1) Above 25 mT, the IMC starts saturating yielding to an increase of the linearity error. 9.3 Accuracy specification transfer characteristic PWM Operating Parameters TA = -40 to 125degC, Vdd = 5.0 V (unless otherwise specified), S = 4%DC/mT Parameter Thermal Offset Drift Thermal Sensitivity Drift Symbol ΔTVoq TC Test Conditions Min -0.4 -150 Typ Max +0.4 +150 Units %DC ppm/°C Table 10: Accuracy specific parameter PWM output 10 Thermometer output specification The thermometer output voltage is in the range from 367mV to 2930mV for temperatures ranging from -40 to 150degC. The accuracy is better than 5degC. The pin shall be able to sustain a low impedance connection to maximum 14V. This output is not ratiometric. Parameter Offset Slope Accuracy Load capacitor Output current Symbol Test Conditions T35 Output voltage with T = 35degC Tslope Tacc CloadTherm External through bonding wire Iouttherm Min Typ 1.38 13.5 -5 1 -0.1 Max 5 50 +0.1 Units V mV/degC degC nF mA Table 11: Thermometer output specification 3901091206 Rev 045 Page 9 Datasheet MLX91206 August 2022 MLX91206 IMC-Hall® Current Sensor (Triaxis® Technology) 11 Programmable items 11.1 Parameter table Customers can re-program the parameters described in the table below by using the Melexis PTC-04 hardware and the Product Specific Functions (PSF) libraries provided by Melexis. We recommend using the latest version of the PSF and the latest version of the firmware with a communication speed of 10kbps (limited by a maximum output capacitor of 50nF). Software and firmware are available on the softdist platform (see contact details on page 25 to request an account). Parameter Bits Factory Setting Comment DSPMODE 1 0 Selection analog or PWM output OUTMODE 1 1 Capacitive load selection in analog mode Push pull or open drain output drive in PWM mode N/A Output impedance setting DIAGINFAULT 1 0 Not used in analog mode REFEDGE 1 0 Diagnostic level & reference edge Not used in analog mode SWITCH 1 N/A PWM or SWITCH output selection 0 (1) Change of sensitivity sign PLATEPOL 1 0 ROUGHGAIN FINEGAIN YA 3 10 13 12 14 9 CLAMPLOW 3 XA CLAMPHIGH 3 FILTCODE OUTSLOPE 3 4 2 DCDEF 1 RATIODIS(1) 1 TC1ST TC2ND_COLD TC2ND_HOT OFFDRIFT_COLD OFFDRIFT_HOT MLXID CSTID 7 5 5 6 6 48 17 Trimmed Trimmed Trimmed Trimmed Trimmed N/A 32 Trimmed Rough gain preamplifier Fine gain from 0.4 to 1.0 in analog mode Fine gain from -3.999 to +3.999 in PWM mode Offset compensation VOQ in analog mode Digital offset in PWM mode Not used in analog mode Rough offset compensation in PWM mode Clamping low level in analog mode N/A Trimmed 2 0 2 3 Not used in PWM mode Clamping high level in analog mode Clamping high and low level for PWM output Analog filter in analog mode Digital filter in PWM mode Power limitation of the output driver on high frequencies in analog Output slope control for PWM mode 0 1 0/1(2) N/A Trimmed Trimmed Trimmed Trimmed Trimmed Programmed N/A Not used in analog mode PWM duty cycle definition Enable/Disable ratiometry between output signal and supply Not used in PWM mode Sensitivity temperature drift correction first order Sensitivity temperature drift correction second order for cold Sensitivity temperature drift correction second order for hot Offset temperature drift correction for cold temperatures Offset temperature drift correction for hot temperatures MLX ID Customer ID Table 82: Customer programmable items (1): Changing these parameters has an impact on temperature calibration. (2): Default value is 1 only for CAH-021 version. 3901091206 Rev 045 Page 10 Datasheet MLX91206 August 2022 MLX91206 IMC-Hall® Current Sensor (Triaxis® Technology) 11.2 Output mode configuration (DSPMODE, OUTMODE) DSPMODE activates the PWM or the analog mode for the output signal. OUTMODE configures the output driver. DSPMODE 0 0 1 1 OUTMODE 0 1 0 1 Output Driver Fast analog mode, CL = 1nF..10nF(1) (2)(3) Normal analog mode, CL = 5nF..50nF (1) (2)(4) PWM mode – Open drain PWM mode – Push pull Table 13: Output configuration (1) See section 16, CL = C4. (2) Factory setting: DSPMODE = 0, OUTMODE = 1. (3) For applications directly integrated on a PCB, smaller capacitors are allowed at the output pins. (4) For a standalone application where a cable is connected at the output of the sensor. 11.3 Output impedance mode (DIAGINFAULT) DIAGINFAULT sets the output impedance mode. DIAGINFAULT 0 1 Output impedance Low impedance mode (normal mode) High impedance mode (diagnostic level) 11.4 Reference edge (REFEDGE) – only in PWM mode REFEDGE defines the diagnostic level and sets the reference edge. REFEDGE 0 1 Reference edge (PWM) Falling edge Rising edge 11.5 PWM/switch mode (SWITCH) In PWM mode, the output can be configured to switch mode. SWITCH 0 1 3901091206 Rev 045 Operating mode Disable switch mode Enable switch mode Page 11 Datasheet MLX91206 August 2022 MLX91206 IMC-Hall® Current Sensor (Triaxis® Technology) 11.6 Platepol (PLATEPOL) The polarity of the Hall plate versus the output signal is programmable by the PLATEPOL parameter. PLATEPOL 0 1 Polarity Positive Negative Please note that the factory calibration is done with PLATEPOL=0 . Melexis cannot guarantee the magnetic specifications if this parameter is changed during customer calibration. 11.7 Sensitivity programming (ROUGHGAIN, FINEGAIN) The sensitivity is programmable with 3 bits for ROUGHGAIN and 10 bits for FINEGAIN in analog output application from 60 to 330 V/T (91206-High-Field version) and from 200 to 700 V/T (Low-Field version). The FINEGAIN resolution depends on the programmed ROUGHGAIN setting. It typically ranges from 0.25V/T (ROUGHGAIN=7) up to 0.01V/T (ROUGHGAIN=0). Different option codes correspond to different sensitivity ranges: Ordering IMC Typical Option Code Version Sensitivity 270 mV/mT CAH-001 170 mV/mT CAH-002 110 mV/mT CAH-003 High field 77.5 mV/mT CAH-004 270mV/mT CAH-021 3 %DC/mT CAH-104 Minimum Sensitivity 210 mV/mT 130 mV/mT 80 mV/mT 60 mV/mT 210 mV/mT 0.5 %DC/mT Maximum Sensitivity 330 mV/mT 220 mV/mT 140 mV/mT 110 mV/mT 330mV/mT 5 %DC/mT In order to have a safety margin regarding mechanical tolerances Melexis recommends designing the application in such a way that the typical sensitivity can be used with. If the target sensitivity of the module is out of the defined range (see table above), the hardware and software tools provided by Melexis will not be able to properly calibrate the sensor. Different option codes correspond to different electric gains:rderi Ordering IMC Typical Electrical Option Code Version Rough Gain Gain 7 240 CAH-001 7 240 CAH-021 High field 6 155 CAH-002 5 100 CAH-003 Typical Voq drift [mV] 18 18 14 9 Typical Noise [mV RMS] 5 5 3.5 2.5 Since noise and offset drift of the sensor are proportional to the electric gain of the sensor, Melexis recommends using the version with the smallest gain to optimize the performances. Note: Power consumption is 2mA less if ROUGHGAIN ≤ 3 3901091206 Rev 045 Page 12 Datasheet MLX91206 August 2022 MLX91206 IMC-Hall® Current Sensor (Triaxis® Technology) 11.8 Offset / output quiescent voltage programming (XA, YA) XA In analog mode  12-bit register  Offset compensation before gain  @ 0 Gauss w/o offset & @Vdd=5V  Vout = 6.25 * (VOQ Code) / 4096 (clipping can occur!)  Programming resolution:1.5mV per LSB over the full output range. This corresponds to a calibration resolution of 0.03%Vdd In PWM mode  14-bit register – digital offset VOQ  Offset compensation before gain YA Not used in analog mode In PWM mode  9-bit register  Rough offset compensation (after gain) 11.9 Clamping level programming (CLAMPLOW, CLAMPHIGH) The clamping levels limit the maximum output levels. CLAMPLOW is not used in PWM application. The clamping levels are ratiometric (if RATIODIS = 0) CLAMPLOW 0 1 2 3 4 5 6 7 Minimal output [%Vdd] 4.8 5.7 6.6 7.5 8.4 9.3 10.2 11.2 Table 14: Clamping low level table analog (typical values) 3901091206 Rev 045 Page 13 Datasheet MLX91206 August 2022 MLX91206 IMC-Hall® Current Sensor (Triaxis® Technology) CLAMPHIGH 0 1 2 3 4 5 6 7 Maximal output [%Vdd] 90.6 91.4 92.4 93.3 94.3 95.2 96.1 97 Table 15: Clamping high level analog mode (typical values). The clamping functionality can be disabled by programming CLAMPLOW=CLAMPHIGH=7 CLAMPHIGH 0 1 2 3 4 5 6 7 Minimal output [%DC] 1 4 5 6 7 8 9 10 Maximal output [%DC] 99 96 95 94 93 92 91 90 Table 16: Clamping low and high duty-cycle in PWM mode. The clamping functionality can be disabled by programming CLAMPLOW=CLAMPHIGH=7. The clamping levels calibrated during final test are: - 6%Vdd (+/- 0.5%Vdd) for CLAMPING LOW - 94%Vdd (+/- 0.5%Vdd) for CLAMPING HIGH 11.10 Bandwidth and filter programming (FILTCODE) FILTCODE allows adjusting the internal bandwidth of the sensor in order to optimize for speed or resolution. FILTCODE 0 1 2 3 4 5 6 7 Typical Bandwidth [kHz] 90 (1) 9 40 2 9 0.9 4 0.2 Table 17: FILTCODE settings analog mode (1) Factory settings: FILTCODE = 0. 3901091206 Rev 045 Page 14 Datasheet MLX91206 August 2022 MLX91206 IMC-Hall® Current Sensor (Triaxis® Technology) FILTCODE 2 3 4 5 6 7 8 9 Cut-off frequency [Hz] 557 279 139 70 35 17 9 4 Attenuation [dB] -8.0 -11.2 -14.4 -18.1 -22.4 -27.1 -32.3 -38.1 Tau [ms] 0.29 0.57 1.14 2.29 4.57 9.14 18.29 36.57 Table 18: FILTCODE settings PWM mode Note: - In analog mode values above 7 are not used In PWM mode values below 2 and above 9 are not used 11.11 Power limitation / PWM rise and fall time (OUTSLOPE) OUTSLOPE, in the analog mode case, defines the power limit above which the output driver turns off to prevent damages to the IC. The power dissipated in the IC output driver is measured by the IC itself. The power is obtained by multiplying continuously the voltage across the conducting MOS driver by the output current I out. When the power reaches the power limit, the output driver is switched off and on such that, on average, the measured power is maintained equal to the power limit. The power limitation is disabled when OUTSLOPE=3. Value 0 1 2 3 Power limitation [mW] 50 100 200 DISABLED(1) Table 19: Output power limitation in analog mode (1) Factory settings: OUTSLOPE = 3. OUTSLOPE, in the PWM mode case, defines the rise and fall times of the PWM transients. Value 0 1 2 3 Typical Rise Time 11 7 4 2.5 Typical Fall Time 14 8.5 4.5 2.5 Current Limitation [mA] 5 7 13 22 Table 20: PWM rise and fall time, Cout = 10nF, Rpullup = 4.7kOhms 3901091206 Rev 045 Page 15 Datasheet MLX91206 August 2022 MLX91206 IMC-Hall® Current Sensor (Triaxis® Technology) 11.12 PWM Mode duty cycle definition (DCDEF) The PWM duty cycle definition is as follows. DCDEF 0 1 PWM duty cycle definition tLow / (tLow + tHigh) tHigh / (tLow + tHigh) Table 21: PWM duty cycle definition 11.13 Output ratiometry (RATIODIS) In case of analog mode (DSPMODE=0) RATIODIS allows enabling and disabling the ratiometry of the output in reference to the supply voltage by setting respectively 0 and 1 in the EEPROM. RATIODIS 0 1 Ratiometry Enabled Disabled Please note that the factory calibration is done with RATIODIS=0 excepted for the CAH-021 version where RATIODIS=1. Melexis cannot guarantee the magnetic specifications if this parameter is changed during customer calibration. 11.14 Sensitivity and temperature drift programming (TC1ST, TC2ND_COLD, TC2ND_HOT) First order sensitivity temperature drift can be trimmed from -2000 to 2000 ppm/degC with TC1ST. The programming resolution is 40 ppm/degC. Second order sensitivity temperature drift can be trimmed from -6 to 6 ppm/degC 2 with TC2ND. The programming resolution is 0.4/ppm/degC2.The second order can also be seen as third order correction since cold and hot sides are independently adjusted. 11.15 Offset temperature drift programming (OFFDRIFT_COLD, OFFDRIFT_HOT) Offset temperature drift can be trimmed from -2.25 to +2.25 mV/degC. The programming resolution is 0.075 mV/degC. This first order correction is done independently for temperatures over 25degC and below 25degC. 3901091206 Rev 045 Page 16 Datasheet MLX91206 August 2022 MLX91206 IMC-Hall® Current Sensor (Triaxis® Technology) 11.16 Product Identification (MLXID, CSTID) MLXID A 48-bit MLX ID is used to guarantee MLX traceability (lotnumber, wafernumber, wafer position & option code) and is split up in 3x a 16 bit register (MLXID1, MLXID2 & MLXID3) The programmed option code is stored in MLXID3[2..0]: PSF Option Code (1) Ordering Option Code (2) MLXID3[2..0] 7 CAH-001 / CAH-021 6 CAH-002 5 CAH-003 4 CAH-004 / CAH-104 (1) The option code mentioned in all 91206 related documentation (application notes, PSF and User Interface) refers to the PSF Option Code. (2) The Ordering Option Code mentioned on the page 1 of this datasheet refers to the Ordering Code, which defines the Chip version and the sensitivity range of the sensor CSTID A 17-bit customer ID is available to create a dedicated traceability system Self-diagnostic The MLX91206 provides numerous self-diagnostic features. Those features increase the robustness of the IC functionality as it prevents the IC to provide erroneous output signal in case of internal or external failure modes. Error Calibration Data CRC Error (at power up and in normal working mode) Action Effect on Outputs Fault mode High Impedance mode (1) Power On delay High Impedance mode (1) Remarks Pull down resistive load => Diag Low Pull up resistive load => Diag High 1 ms max in high impedance followed by settling 300mV Hysteresis Idd < 1mA 500 to 1500mV Hysteresis Undervoltage Mode (4) Overvoltage detection Mode 1 (5) (Threshold : min 7.9 V – max 9.5 V) Overvoltage detection Mode 2 (6) (Threshold : min 6.8V – max 7.5V) IC is reset (7) IC is switched off (internal supply) High Impedance mode (1) IC is reset (7) High Impedance mode (1) 100mV Hysteresis Broken Vss IC is switched off High Impedance (2) Broken Vdd IC is switched off High Impedance (3) High Impedance mode (1) With some restrictions on pull-up/pulldown resistors on OUT and TEMPOUT, see Chap. 6 ,Table 3 With some restrictions on pull-up/pulldown resistors on OUT, see Chap. 6 , Table 3 Table 22: Self diagnostic (1) (2) (3) (4) (5) (6) (7) Refer to Table 3: General electrical parameter, parameter High-impedance modes levels Refer to Table 3: General electrical parameter, parameter BrokenVss Output Level Refer to Table 3: General electrical parameter, parameter BrokenVdd Output Level Refer to Table 3: General electrical parameter, parameter Under-voltage detection Refer to Table 3: General electrical parameter, parameter Over-voltage detection mode 1 Refer to Table 3: General electrical parameter, parameter Over-voltage detection mode 2 The internal supply is regulated but the digital sequencer (hall element spinning) is stopped 3901091206 Rev 045 Page 17 Datasheet MLX91206 August 2022 MLX91206 IMC-Hall® Current Sensor (Triaxis® Technology) 12 Application information 12.1 Low current measurement up to ±2 A Low currents can be measured with the MLX91206 by increasing the magnetic field via a coil around the sensor. The sensitivity (output voltage vs. current in coil) of the measurement will depend on the size of coil and number of turns. Additional sensitivity and increased immunity to external fields can be gained by adding a shield around the coil. The bobbin provides very high dielectric isolation making this a suitable solution for high voltage power supplies with relative low currents. The output should be scaled to obtain the maximum voltage for the highest current to be measured in order to obtain the best accuracy and resolution. Figure 3: Low current application 12.2 Medium current up to ±30 A With a single conductor located on the PCB, currents in the range of up to 30 amps can be measured. The sizing of the PCB trace needs to take into account the current handling capability and the total power dissipation. The PCB trace needs to be thick enough and wide enough to handle the RMS current continuously. The differential output voltage for this configuration can be approximated by the following equation: Vout = 35 mV/A * I For a current level of 30 A, the output will be approximately 1050 mV. Figure 4: Medium current application 12.3 High current measurement up to ±600 A Another method of measuring high currents on PCB’s is to use a large thick gauge copper trace capable of carrying the current on the opposite side of the PCB. The MLX91206 should be located near the centre of the trace, however because the trace is wide, the output is less sensitive to location on the PCB. This configuration also has less sensitivity due to the distance and width of the conductor. Figure 5: High current application 3901091206 Rev 045 Page 18 Datasheet MLX91206 August 2022 MLX91206 IMC-Hall® Current Sensor (Triaxis® Technology) 13 Recommended Application Diagrams 13.1 Resistor and capacitor values All mentioned component values can have a ±20% tolerance Part C1 C2 C3 Description Supply capacitor, EMI, ESD Regulator buffer capacitor, decoupling, EMI, ESD Decoupling, EMI, ESD Value 10 - 220 10 - 220 5 - 50 Unit nF nF nF C4 R1 Decoupling, EMI, ESD Pull up or pull down load resistor 5 – 50 (1) 10 - 30 nF kΩ Table 23: Resistor and capacitor value (1) When OUTMODE=0, which we do not advice in application, capacitor C4 should be 1nF or less. 13.2 Fast analog application, pull-down resistor for diagnostic low Figure 6: Fast analog application, Pull-down resistor 3901091206 Rev 045 Page 19 Datasheet MLX91206 August 2022 MLX91206 IMC-Hall® Current Sensor (Triaxis® Technology) 13.3 Fast analog application, pull-up resistor for diagnostic high Figure 7: Fast analog application, Pull-up resistor 13.4 Robust PWM application, (pull-up load only) Figure 8: Robust PWM application with pull-up resistor 3901091206 Rev 045 Page 20 Datasheet MLX91206 August 2022 MLX91206 IMC-Hall® Current Sensor (Triaxis® Technology) 14 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 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 15 ESD Precautions Electronic semiconductor products are sensitive to Electro Static Discharge (ESD). Always observe Electro Static Discharge control procedures whenever handling semiconductor products. 3901091206 Rev 045 Page 21 Datasheet MLX91206 August 2022 MLX91206 IMC-Hall® Current Sensor (Triaxis® Technology) 16 Package Information 16.1 SOIC8 Package dimensions Figure 9: Package dimensions 8 OUTPWN TESTOUT MUST0 TEMP OUT 16.2 SOIC8 Pinout and Marking Marking Die version (2 digits) 5 91206 91206CA XXXXXX YYWWxx TOP CA XXXXXX YY WW MUST1 VDIG VSS Lot number (6 digits) xx “EH”: High field version Calender week date code Last 2 digits of assembly year 4 VDD 1 Part Number MLX91206 (5 digits) Figure 10: Pinout and marking Note: the option code is not marked on the package. It can be found back in the EEPROM (see chapter 11.12) and on the tape-on-reel label information. 3901091206 Rev 045 Page 22 Datasheet MLX91206 August 2022 MLX91206 IMC-Hall® Current Sensor (Triaxis® Technology) 16.3 SOIC8 Hall plate position Figure 11: Hall Plate positioning 16.4 IMC Position and sensors active measurement direction Figure 12: IMC position and geometry Low-Field version Figure 13: IMC position and geometry High-Field version 3901091206 Rev 045 Page 23 Datasheet MLX91206 August 2022 MLX91206 IMC-Hall® Current Sensor (Triaxis® Technology) 17 Related documents and tools 17.1 Related documents  User Interface UI MLX91206 Description  Product Specific Functions PSF MLX91206 Description  PTC-04 Daughter Board DB-HALL-03 Data Sheet The latest version of these documents is available on the Melexis Softdist platform. Please contact your local sales office to request an account (see contact details on page 25).  Non intrusive current sensing with MLX91206 application note  MLX91206 for PDU solutions application note  Calibrating the MLX91206/MLX91207 application note  Shielding for Triaxis current sensors application note The latest version of these documents is available on the MLX91206 page on the Melexis website: http://www.melexis.com/Hall-Effect-Sensor-ICs/Special-Purpose-Hall-ICs/MLX91206-755.aspx 17.2 Related software  MLX91206 Firmware  MLX91206 Product Specific Functions (PSF)  MLX91206 User Interface  MLX PTC-04 Product Specific Functions  MLX PTC-04 User Interface The latest version of these pieces of software is available on the Melexis Softdist platform. Please contact your local sales office to request an account (see contact details on page 25). 17.3 Related hardware  PTC-04 Programmer for Melexis PTC devices  PTC-04 Daughter Board DB-HALL-03 for MLX91206 3901091206 Rev 045 Page 24 Datasheet MLX91206 August 2022 MLX91206 IMC-Hall® Current Sensor (Triaxis® Technology) 18 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 lifesupport 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. © 2012 Melexis NV. 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: Phone: +32 1367 0495 E-mail: sales_europe@melexis.com America: Phone: +1 248 306 5400 E-mail: sales_usa@melexis.com ISO/TS 16949 and ISO14001 Certified 3901091206 Rev 045 Page 25 Datasheet MLX91206 August 2022