MLX91208LDC-CAH-000-RE

MLX91208 IMC-Hall® Current Sensor Datasheet Features and Benefits Description  IMC-Hall Technology  Very high sensitivity due to Integrated Magnetic Concentrator (IMC-Hall®)  Programmable high speed current sensor IC  Wideband: DC to 250kHz  Short response time 3us  Programmable linear transfer characteristic  Selectable Analog ratiometric output  SOIC8 package RoHS compliant  Lead free component, suitable for lead free soldering profile 260°C (target), MSL3  AEC-Q100 Automotive Qualified The MLX91208 is a monolithic sensor IC featuring the IMCHall 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 technology is automotive qualified. The product is a single chip Hall sensor which provides an output signal proportional to the flux density applied horizontally and is therefore suitable for current measurement. It is ideally suited as an open loop current sensor for PCB or bus bar mounting. It features small size application design and a simple construction for various current ranges from few Amperes up to 1000 Amperes. The transfer characteristic of the MLX91208 is programmable in terms of offset, gain or temperature compensation. The linear analog output is designed for applications where a very fast response is required, such as inverter applications. Application Examples  Inverter HEV and EV  BLDC motor current monitoring  Smart fuse (over-current detection)  AC/DC Converters  DC/AC Converter (inverter)  DC/DC switched mode power supply Figure 2: Block diagram /D Figure 1: Typical application of MLX91208 3901091208 Rev.011 Page 1 of 18 MLX91208 Mar 2022 MLX91208 IMC-Hall® Current Sensor Datasheet Ordering Information Product Temperature Package Option Code Packing Form Sensitivity Range (typ.) ML91208 L (-40°C to 150°C) DC CAL - 000 TU/RE 100-700mV/mT (250mV/mT) ML91208 L (-40°C to 150°C) DC CAH - 000 TU/RE 50-350mV/mT (100mV/mT) ML91208 L (-40°C to 150°C) DC CAV - 000 TU/RE 30-200mV/mT (40mV/mT) ML91208 L (-40°C to 150°C) DC CAV - 001 TU/RE 30-200mV/mT (60mV/mT) Table 1: Ordering Information Legend: Temperature Code: Package Code: Option Code: Packing Form Code: Ordering Example: L DC xxL xxH xxV - from -40°C to 150°C - for SOIC-8 package - Low field version - High field version - Very high field version - for Reel RE TU - for Tube “MLX91208LDC-CAH-000-RE” Table 2: Legend Glossary of Terms Terms Definition Tesla Units for the magnetic flux density, 1 mT = 10 Gauss TC Temperature Coefficient in ppm/deg C NC Not Connected ADC Analog to Digital Converter DAC Digital to Analog Converter LSB Least Significant Bit MSB Most Significant Bit DNL Differential Non Linearity INL Integral Non Linearity IMC Integrated Magneto Concentrator (IMC-HALL) PTC Programming Through Connector Table 3: Glossary of terms 3901091208 Rev.011 Page 2 of 18 MLX91208 Mar 2022 MLX91208 IMC-Hall® Current Sensor Datasheet Contents Features and Benefits ............................................................................................................................ 1 Application Examples............................................................................................................................. 1 Description ............................................................................................................................................ 1 Ordering Information ............................................................................................................................ 2 Glossary of Terms .................................................................................................................................. 2 Absolute Maximum Ratings ................................................................................................................... 5 Pin Definitions and Descriptions ............................................................................................................ 5 General Electrical Specifications ............................................................................................................ 6 Magnetic specification........................................................................................................................... 7 Low Field Version 10mT (option code xxL) ........................................................................................ 7 High Field Version 25mT (option code xxH) ...................................................................................... 7 Very High Field Version 60mT (option code xxV) .............................................................................. 8 Analog output specification ................................................................................................................. 8 Timing specification .......................................................................................................................... 8 Accuracy specification ...................................................................................................................... 9 Remarks to the achievable accuracy ............................................................................................... 9 Programmable items ......................................................................................................................... 10 Parameter table .............................................................................................................................. 10 Sensitivity programming (RG, FG) .................................................................................................. 10 Offset / output quiescent voltage programming (VOQ) ............................................................... 10 Output ratiometry (ENRATIO) ........................................................................................................ 11 Sensitivity temperature drift programming (TC1ST, TC2ND_COLD, TC2ND_HOT) ..................... 11 Offset temperature drift programming (OFFDR2C, OFFDR2H) .................................................... 11 Noise filter (NOISEFILT) .................................................................................................................. 11 Identification code (ID) ................................................................................................................... 11 Self-diagnostic ................................................................................................................................... 12 Application information ..................................................................................................................... 12 Recommended Application Diagrams ................................................................................................ 13 Resistor and capacitor values......................................................................................................... 13 Pull-down resistor for diagnostic low ............................................................................................ 13 Typical performance .......................................................................................................................... 14 Standard information regarding manufacturability of Melexis products with different soldering processes ............................................................................................................................................ 15 ESD Precautions................................................................................................................................. 15 3901091208 Rev.011 Page 3 of 18 MLX91208 Mar 2022 MLX91208 IMC-Hall® Current Sensor Datasheet Package information .......................................................................................................................... 16 SOIC-8 Package Dimensions ........................................................................................................... 16 SOIC-8 Pinout and Marking ............................................................................................................ 16 SOIC-8 Hall plate position ............................................................................................................... 17 SOIC-8 IMC Position and magnetic sensitive direction ................................................................. 17 Contact .............................................................................................................................................. 18 Disclaimer .......................................................................................................................................... 18 3901091208 Rev.011 Page 4 of 18 MLX91208 Mar 2022 MLX91208 IMC-Hall® Current Sensor Datasheet Absolute Maximum Ratings Parameters Symbol Value Units Vdd +10 V Reverse Supply Voltage Protection -0.3 V Positive Output Voltage +10 V ±70 mA Reverse Output Voltage -0.3 V Reverse Output Current -50 mA Positive Supply Voltage (overvoltage) Output Current Iout Package Thermal Resistance (junction-to-ambient) ja is defined according JEDEC 1s0p board ja 174 °C/W Operating Ambient Temperature Range TA -40 to 150 °C Storage Temperature Range TS -55 to 165 °C ±3 T -55 to 155 °C 2 kV Magnetic Flux Density Maximum Junction Temperature Tj,max ESD (HBM) Table 4: Absolute maximum ratings Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute maximum rated conditions for extended periods may affect device reliability. Pin Definitions and Descriptions Pin № Name Type Function 5 VDD Supply Supply Voltage 3 GND Ground Supply Voltage 1 VDEC Digital Digital supply voltage 4 TEST/MUST Digital Test and Factory calibration 6 OUT Analog Current sensor output 2,7,8 NC - Not connected / unused Table 5: PIN definitions and descriptions It is recommended to connect the unused pins to the Ground for optimal EMC performance. 3901091208 Rev.011 Page 5 of 18 MLX91208 Mar 2022 MLX91208 IMC-Hall® Current Sensor Datasheet General Electrical Specifications Operating Parameters: TA = -40 to 125deg.C, Vdd = 4.5V to 5.5V, Iout = -2mA to +2 mA, recommended application diagram in section 14, unless otherwise specified. Parameter Symbol Nominal Supply Voltage Vdd Supply Current Idd Test Conditions Min Typ. Max Units 4.5 5 5.5 V W/o output load in application mode TA = -40 to 150oC 9 12 14 mA DC load Current Iout Rout in range [6kΩ, 100kΩ] -2 2 mA Maximum Output Current (driving capability) Imax Inside this range, output voltage reaches 3%VDD and 97%VDD -2 2 mA 5  10 nF Output Resistance Vout = 50% Vdd, RL = 6kΩ 1 Output Capacitive Load Cload Output amplifier is optimized for the capacitive load range. 1 Output resistive load Rload Output resistive load for high linearity 6 Output Short Circuit Current Ishort Output shorted permanent to Vdd. Not destroyed Output shorted permanent to GND. Not destroyed Leakage current Ileak Linear Output Voltage Range Vout in [10%Vdd, 90%Vdd] High-impedance levels(1) mode Vout_HiZ_pd Under-voltage detection (2) Over-voltage detection(2) Ratiometry enable detection (2) Vout_pd kΩ High impedance mode (1) T=150°C pull down ≥ 10 kΩ 10 pull-down RL ≤ 25 kΩ, T≤125°C Vdd_uvd Low to high voltage Vdd_uvh 20 uA 90 %Vdd 5 %Vdd 3 3.3 4 V Hysteresis 0.20 0.3 0.45 V Vdd_ovd Low to High voltage 6.5 7.6 V Vdd_ovh Hysteresis 0.05 0.7 V Vratio_d Low to High Voltage 4 4.50 V Vratio_h Hysteresis 0.01 0.5 V Table 6: General electrical parameter 1 Refer to chapter Self-diagnostic, table 12 2 See graph below the table 3901091208 Rev.011 Page 6 of 18 MLX91208 Mar 2022 MLX91208 IMC-Hall® Current Sensor Datasheet (2) According to the figure below: Vout Hysteresis Detected Vdd Voltage Magnetic specification Low Field Version 10mT (option code xxL) Operating Parameters TA = -40 to 125deg.C, Vdd = 4.5 V to 5.5 V, unless otherwise specified. Parameter Symbol Nominal Field Range Bnom Bop Operational Field Range(3) Linearity Error Test Conditions Min Typ Max Units -7.5 +7.5 mT -10 +10 mT NL B in range Bop Vout in [10%VDD, 90%VDD] -0.7 +0.7 %FS Hysteresis, remanent Field Br B = Bop -15 +15 uT Programmable Sensitivity S 700 mV/mT Sensitivity programming Resolution 100 Sres 250 0.1 % Table 7: Magnetic specification for 10mT version (low-field version) High Field Version 25mT (option code xxH) Operating Parameters TA = -40 to 125deg.C, Vdd = 4.5 V to 5.5 V, unless otherwise specified. Parameter Nominal Field Range Symbol Test Conditions Min Typ Max Units Bnom -20 +20 mT Operational Field Range(3) Bop -25 +25 mT Linearity Error NL B in range Bop Vout in [10%VDD, 90%VDD] -0.7 +0.7 %FS Hysteresis, remanent Field Br B = Bop -25 +25 uT Programmable Sensitivity S 350 mV/mT Sensitivity programming Resolution 50 Sres 100 0.1 % Table 8: Magnetic specification 25mT version (high-field version) 3 Outside Bop, the IMC progressively enters saturation, yielding to an increase of the linearity error. 3901091208 Rev.011 Page 7 of 18 MLX91208 Mar 2022 MLX91208 IMC-Hall® Current Sensor Datasheet Very High Field Version 60mT (option code xxV) Operating Parameters TA = -40 to 125deg.C, Vdd = 4.5 V to 5.5 V, unless otherwise specified. Parameter Symbol Nominal Field Range Operational Field Range (3) Test Conditions Min Typ Max Units Bnom -50 +50 mT Bop -60 +60 mT Linearity Error NL B in range Bop Vout in [10%VDD, 90%VDD] -0.7 +0.7 %FS Hysteresis, remanent Field Br B = Bop -60 +60 uT Programmable Sensitivity S CAV-000 CAV-001 30 30 200 200 mV/mT mV/mT Sensitivity programming Resolution Sres 40 60 0.1 % Table 9: Magnetic specification 60mT version (Very high-field version) Note: The noise filter is disabled by default for all MLX91208 versions. Analog output specification Timing specification Operating Parameters TA = -40 to 125deg.C, Vdd = 4.5 V to 5.5 V (unless otherwise specified) Parameter Refresh rate Symbol Trr Step Response Time Tresp Bandwidth Power on Delay TPOD Min Typ Max Units 0.8 1 2 us 2 5 3 6 μs μs 250 150 300 180 kHz kHz 1 ms Delay between the input signal reaching 90% and the output signal reaching 90%, (2V step at the output, input rise time = 1µs) -Noise filter OFF -Noise filter ON -Noise filter OFF -Noise filter ON BW Ratiometry Cut-off Frequency Test Conditions 200 120 Vout =100% of FS Pull-down resistor ≤100kOhm During the Power-on delay, the output will remain within the 10% fault band at all time. Fratio 250 Hz Table 10: Timing specification high speed analog output 3901091208 Rev.011 Page 8 of 18 MLX91208 Mar 2022 MLX91208 IMC-Hall® Current Sensor Datasheet in, Vout Response time 100 % 90% time 1 µs Figure 3: Response time definition Accuracy specification Operating Parameters TA = -40 to 125deg.C, Vdd = 4.5 V to 5.5 V (unless otherwise specified) Parameter Thermal Offset Drift Symbol ΔTVoq Test Conditions Min Offset drift referred to 25°C S=40mV/mT (xxV version) S=100mV/mT (xxH version) S=250mV/mT (xxL version) Typ -10 Max Units +10 mV +1.5 % of S 10 6 mVrms mVrms Vdd=5V, TC=0150 ppm/°C Voq=500.2 %Vdd Thermal Sensitivity Drift RMS Output noise Ratiometry Error Offset Ratiometry Error Sensitivity TC Nrms -1.5 S=40mV/mT (xxV version) S=100mV/mT (xxH version) S=250mV/mT (xxL version) -Noise filter OFF -Noise filter ON 0 ΔVoq Voq = 50%Vdd ΔVdd = 10%Vdd -0.4 +0.4 % of Voq ΔS ΔVdd = 10%Vdd -0.4 +0.4 % of S Table 11: Accuracy-Specific Parameters 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. 3901091208 Rev.011 Page 9 of 18 MLX91208 Mar 2022 MLX91208 IMC-Hall® Current Sensor Datasheet Programmable items Parameter table Parameter Bits Factory Setting Comment VOQ[11:0] 12 trimmed Quiescent output level (0 Gauss) adjustment RG[2:0] 3 trimmed Rough gain adjustment FG[9:0] 10 trimmed Fine gain adjustment ENRATIO 1 1 TC1[7:0] 8 trimmed Adjustment of the first order temperature compensation of the magnetic sensitivity TC2HOT[4:0] 5 trimmed Adjustment of the extra temperature compensation of the magnetic sensitivity at high temperature TC2COLD[4:0] 5 trimmed Adjustment of the extra temperature compensation of the magnetic sensitivity at low temperature OFFDR2C[5:0] 6 trimmed Adjustment of the offset drift at low temperature after the VGA OFFDR2H[5:0] 6 trimmed Adjustment of the offset drift at high temperature after the VGA NOISEFILT 1 0 Noise filter enablement ID[47:0] 48 Programmed Melexis traceability ID Ratiometry enablement Table 12: Customer programmable items Sensitivity programming (RG, FG) The sensitivity can be programmed from 50 to 350mV/mT (high field version) or 100 to 700mV/mT (low field version), with the ROUGHGAIN (3 bits) and FINEGAIN (10 bits) parameters. Offset / output quiescent voltage programming (VOQ) The offset is programmable with 12 bits in 1.5 mV steps over the full output range. This corresponds to a calibration resolution of 0.03 %VDD. The typical step size would be 5V/4096 = 1.22 mV, but the actual step size can differ from the nominal value because of internal gain tolerance. A maximum step size of 1.5 mV is guaranteed. Note: for optimal performance over temperature, the VOQ should be programmed in the range from 2 to 3V. 3901091208 Rev.011 Page 10 of 18 MLX91208 Mar 2022 MLX91208 IMC-Hall® Current Sensor Datasheet Output ratiometry (ENRATIO) The ratiometry of the output versus the supply can be disabled by setting this bit to 0. Note: for optimal performance over temperature, the ratiometry setting should not be changed on customer side. By default, this setting is enabled during final test calibration. Sensitivity temperature drift programming (TC1ST, TC2ND_COLD, TC2ND_HOT) First order sensitivity temperature drift can be trimmed with TC1. The programming resolution is 40ppm/K. Second order sensitivity temperature drift can be trimmed with TC2COLD and TC2HOT. The programming resolution is 2ppm/K2 for TC2COLD and 0.6ppm/K2 for TC2HOT.The second order can also be seen as third order correction since cold and hot sides are independently adjusted. Note: for optimal performance over temperature, the first order sensitivity drift compensation (TC1ST) should not exceed ±250ppm/K. Offset temperature drift programming (OFFDR2C, OFFDR2H) Offset temperature drift caused by the output amplifier can be compensated with these two parameters. This first order correction is done independently for temperatures over and below 25°C. Note: Two additional parameters (OFFDR1C, OFFDR1H) are calibrated by Melexis to compensate for the offset temperature drift caused by the Hall element (before the variable gain amplifier). These parameters should not be adjusted on customer-side. Noise filter (NOISEFILT) Setting this bit to 1 enables the noise filter, reducing noise and increasing response time. Identification code (ID) 48 bits programmed identification code. 3901091208 Rev.011 Page 11 of 18 MLX91208 Mar 2022 MLX91208 IMC-Hall® Current Sensor Datasheet Self-diagnostic The MLX91208 provides self-diagnostic features to detect internal memory errors and over- / under-voltage. Those features increase the robustness of the IC functionality, as they prevent the IC from providing erroneous output signal in case of internal or external failure modes. Error Action Effect on Outputs Remarks Calibration Data CRC Error (at power up and in normal working mode) Fault mode High Impedance mode Pull down resistive load, Diagnostic Low High Impedance mode 1ms max in high impedance followed by settling Power On delay Undervoltage Mode IC is reset High Impedance mode 300mV Hysteresis (typical) Overvoltage detection IC is reset High Impedance mode 500mV Hysteresis (typical) Table 13: Self diagnostic Application information Please refer to our current sensor reference design guide for more application information: https://www.melexis.com/en/documents/documentation/application-notes/application-note-currentsensor-design-guide 3901091208 Rev.011 Page 12 of 18 MLX91208 Mar 2022 MLX91208 IMC-Hall® Current Sensor Datasheet Recommended Application Diagrams Resistor and capacitor values Part C1 Description Supply capacitor, EMI, ESD Value Unit 100 nF (4) C2 Decoupling, EMI, ESD 2-10 nF C3 Decoupling, EMI, ESD 47 nF R1 Pull down resistor 6-100 kΩ Table 14: Resistor and capacitor values Pull-down resistor for diagnostic low Figure 4: Diagnostic low/ Pull-down resistors 4 10nF is recommended for better EMC and ESD performance 3901091208 Rev.011 Page 13 of 18 MLX91208 Mar 2022 MLX91208 IMC-Hall® Current Sensor Datasheet Typical performance Figure 6: Thermal offset drift. Figure 5: Thermal sensitivity drift. Figure 7: Linearity error for all versions. shunt shunt MLX91208 MLX91208 Figure 8: Response time with noise filter OFF. 3901091208 Rev.011 Page 14 of 18 Figure 9: Response time with noise filter ON. MLX91208 Mar 2022 MLX91208 IMC-Hall® Current Sensor Datasheet Standard information regarding manufacturability of Melexis products with different soldering processes Melexis devices are qualified using state-of-the-art practices in accordance with automotive and environmental requirements. Through qualifications, various soldering techniques are considered; please refer to “Soldering recommendations for Melexis products” for more information: https://www.melexis.com/en/documents/documentation/application-notes/application-note-solderingrecommendations For components normally soldered using Surface Mounted Device techniques (eg: Reflow process), Melexis has defined and qualified Moisture Sensitivity Level and Peak Temperature in accordance with the Jedec JSTD-020 standard. Delivered material is conditioned accordingly. Moisture Sensitivity Level and Peak Temperature information can be found on the label identifying the material. In case you intend to use a reflow soldering process for through hole devices (Melexis’ package codes: SA, UA, VA, VK, VM), please contact Melexis to verify your soldering process compatibility. The application of Wave Soldering for SMD’s is allowed only after consulting Melexis regarding assurance of adhesive strength between device and board. Based on Melexis commitment to environmental responsibility, Europe legislations (Direction on the Restriction of the Use of Certain Hazardous substances, RoHS) and customer requests, Melexis has deployed Pb free leadfinish (typically Matte Tin) on all ASSP products. For through hole devices (Melexis’ package codes: SA, UA, VA, VK, VM) Trim&Form, please refer to “Trim & Form recommendations for Melexis products” for more information: (http://www.melexis.com/Assets/Trim_and_form_recommendations_DownloadLink_5565.aspx) ESD Precautions Electronic semiconductor products are sensitive to Electro Static Discharge (ESD). Always observe Electro Static Discharge control procedures whenever handling semiconductor products. ESD HBM robustness is 2kV on external pins according to AEC-Q100-002 REV-D. 3901091208 Rev.011 Page 15 of 18 MLX91208 Mar 2022 MLX91208 IMC-Hall® Current Sensor Datasheet Package information SOIC-8 Package Dimensions 1.27 TYP NOTES: 3.81 3.99** 4.80 4.98* 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 includ e dam bar 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. 5.84 6.20** 1.40 1.55 1.55 1.73 0.19 0.25 0° 8° 0.35 0.49*** 0.127 0.250 0.41 0.89 Figure 10: SOIC-8 Package dimensions SOIC-8 Pinout and Marking Low High Very High Field Field Field Marking description: 1st line: 91208CA 2nd line: XXXXXX 3rd line: YY……… 3rd line: …WW… 3rd line: …………EL 3rd line: …………EH 3rd line: …………VP - product - wafer LOT number - assembly LOT year - assembly LOT week - low field version - high field version - very high field version Figure 11: SOIC-8 Pinout and marking (Low Field, High Field and Very High Field version) 3901091208 Rev.011 Page 16 of 18 MLX91208 Mar 2022 MLX91208 IMC-Hall® Current Sensor Datasheet SOIC-8 Hall plate position Figure 12: SOIC-8 Hall Plate positioning SOIC-8 IMC Position and magnetic sensitive direction B extern B extern Figure 13: IMC position and geometry for low-field version B extern B extern Figure 14: IMC position and geometry high-field version B extern B extern Figure 15: IMC position and geometry very high-field version 3901091208 Rev.011 Page 17 of 18 MLX91208 Mar 2022 MLX91208 IMC-Hall® Current Sensor Datasheet Contact For the latest version of this document, go to our website at http://www.melexis.com/MLX91208. For additional information, please contact our Direct Sales team and get help for your specific needs: Europe, Africa Email : sales_europe@melexis.com Americas Email : sales_usa@melexis.com Asia Email : sales_asia@melexis.com Disclaimer The content of this document is believed to be correct and accurate. However, the content of this document is furnished "as is" for informational use only and no representation, nor warranty is provided by Melexis about its accuracy, nor about the results of its implementation. Melexis assumes no responsibility or liability for any errors or inaccuracies that may appear in this document. Customer will follow the practices contained in this document under its sole responsibility. This documentation is in fact provided without warranty, term, or condition of any kind, either implied or expressed, including but not limited to warranties of merchantability, satisfactory quality, non-infringement, and fitness for purpose. 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The confidentiality obligations set forth in this disclaimer will have indefinite duration and in any case they will be effective for no less than 10 years from the receipt of this document. This disclaimer will be governed by and construed in accordance with Belgian law and any disputes relating to this disclaimer will be subject to the exclusive jurisdiction of the courts of Brussels, Belgium. The invalidity or ineffectiveness of any of the provisions of this disclaimer does not affect the validity or effectiveness of the other provisions. The previous versions of this document are repealed. Melexis © - No part of this document may be reproduced without the prior written consent of Melexis. (2022) IATF 16949 and ISO 14001 Certified 3901091208 Rev.011 Page 18 of 18 MLX91208 Mar 2022