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MLX90248Micropower & Omnipolar Hall SwitchFeatures and Benefits Applications Micropower consumption ideal for batterypowered applicationsOmnipolar, easy to use as output switches withboth North and South poleVery High Sensitivity Hall SensorChopper stabilized amplifier stageOpen-Drain OutputOperation down to 1.5V Solid State SwitchHandheld Wireless Handset Awake SwitchLid close sensor for battery-powered devicesMagnet proximity sensor for reed switchreplacement in low duty cycle applicationsEnergy meteringOrdering InformationProduct CodePackage CodeMLX90248TemperatureCodeEOption CodePacking Form 000CNLegend:Temperature Code:Package Code:Packing Form:Ordering example:E for Temperature Range -40 C to 85 CSE for TSOT, LD for UTQFN, SC for SC-70RE for Reel, CN for CanisterMLX90248ESE-EBA-000-RE1. Functional Diagram2. General DescriptionThe MLX90248 Omnipolar Hall effect sensor technology. Itincorporates advanced chopper-stabilization techniques toprovide accurate and stable magnetic switch points. Thecircuit design provides an internally controlled clockingmechanism to cycle power to the Hall element and analogsignal processing circuits.This serves to place the high current-consuming portions ofthe circuit into a “Sleep” mode. Periodically the device is“Awakened” by this internal logic and the magnetic fluxfrom the Hall element is evaluated against the predefinedthresholds. If the flux density is above or below the Bop/Brpthresholds, then the output transistor is driven to changestates accordingly. While in the “Sleep” cycle the outputtransistor is latched in its previous state. The design hasbeen optimized for service in applications requiringextended operating lifetime in battery powered systems.The output transistor of the 90248 will be latched on (BOP)in the presence of a sufficiently strong South or Northmagnetic field facing the marked side of the package. Theoutput will be latched off (BRP) in the absence of a magneticfield.REVISION 007 – MARCH 2021390109024802Page 1 of 13

MLX90248Micropower & Omnipolar Hall SwitchContentsFeatures and Benefits.1Applications.1Ordering Information .11. Functional Diagram .12. General Description.13. Glossary of Terms .34. Absolute Maximum Ratings .35. Pin Definitions and Descriptions .36. Electrical Specifications .47. Magnetic Specifications .48. Outputs behavior vs. Magnetic Pole .49. Detailed General Description.510. Unique Features .511. Performance Graphs .6Magnetic Thresholds vs. TA . 6Magnetic Thresholds vs. VDD . 6Current Consumption vs. TA . 6Current Consumption vs. VDD . 6Consumption Period vs. TA . 6Consumption Period vs. VDD . 6Output Saturation Voltage vs. TA . 712. Application Information.713. Standard information regarding manufacturability of Melexis products with different solderingprocesses.814. ESD Precautions .815. Package Information .9TSOT-3L (SE Package) . 9UTQFN-6L (LD package). 10SC-70 (SC Package) . 1216. Contact .1317. Disclaimer.13REVISION 007 – MARCH 2021390109024802Page 2 of 13

MLX90248Micropower & Omnipolar Hall Switch3. Glossary of TermsGauss, milliTesla (mT),Units of magnetic flux density10 Gauss 1mT4. Absolute Maximum RatingsParameterSupply VoltageSymbolVDDValue5UnitsVSupply CurrentIDD5mAOutput VoltageVOUT5VOutput CurrentIOUT10mAOperating Temperature RangeTA-40 to 85⁰CStorage Temperature RangeTS-50 to 150⁰CExceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute-maximum-rated conditions forextended periods may affect device reliability.5. Pin Definitions and DescriptionsSC packageSE PackageLD PackagePin NameFunctionPin No (SE)Pin No (LD)Pin No (SC)VDDPower Supply121GNDGround343OUTOutput252N.C.Not connected-1, 3, 6-Table 1: Pin definitions and descriptionsNote: Exposed Pad on LD package is connected to groundREVISION 007 – MARCH 2021390109024802Page 3 of 13

MLX90248Micropower & Omnipolar Hall Switch6. Electrical SpecificationsDC Operating Parameters TA 25oC, VDD 1.5V to 3.6V (unless otherwise specified)ParameterSymbol ConditionsMin Typ.MaxSupply VoltageVDDOperating1.53.6Awake Supply CurrentIDDawake VDD 3.6V35Sleep Supply CurrentIDDsleepVDD 3.6V3.56Average Supply CurrentIDDavVDD 3.6V, Average6.510Output Saturation VoltageVSATIOUT 1mA0.270.4Output Leakage CurrentILEAKVDD 3.6V1Awake PeriodTAWOperating3050120Sleep PeriodTSLOperating254070UnitsVmAuAuAVuAusmsTable 2: Electrical specifications7. Magnetic SpecificationsDC Operating Parameters TA 25⁰C, VDD 1.5V to 3.6V (unless otherwise specified)ParameterOperating PointRelease PointHysteresisSymbolBOPBRPBHYSMin /-1.1 /-0.80.3Typ. /-3.8 /-2.8-Max /-6 /-5.72.3UnitsmTmTmTTable 3: Magnetic specificationsNote : For typical values, please refer to the performance graphs section8. Outputs behavior vs. Magnetic PoleParameterNorth or South pole“Zero” magnetic poleTest conditionsB BOP B BRP OUTLowHighTable 5: Outputs behavior vs. magnetic poleNote: The magnetic pole is applied facing the branded side of the packageREVISION 007 – MARCH 2021390109024802Page 4 of 13

MLX90248Micropower & Omnipolar Hall Switch9. Detailed General DescriptionThe MLX90248 is originally used in mobile phone applications for open/close lid detection (flip, slide and swivelphone type). The goal of this detection is to switch on or off the application if the lid is opened or closed, in order tosave battery power.The same operation principle can be simply applied to any other battery-powered device with a lid/cover like laptop,digital cameras and camcorders.By the use of a very high sensitivity Hall sensor, a very small and cheap magnet is enough to trigger the MLX90248,hence it can easily replace reed switch.The major benefit of using a Hall sensor is to provide “electronic” commutation, which is bounce-free, more reliableand with increased lifetime compared to usual mechanical contacts.10. Unique FeaturesThe MLX90248 exhibits “Omnipolar” magnetic characteristics. It means the device reacts to both North and Southmagnetic pole. The purpose is to detect the presence of any magnetic field applied on the device.This mode of operation simplifies customer production processes by avoiding the need to detect the Hall sensor poleactive on the magnet used in the application.Taking the example of a generic Hall sensor “south pole active”, during its production, the customer must detect thesouth pole of the application magnet and face it to the device to enable the output to be turned on and off. Withoutany magnet pole detection system, the incorrect magnetic pole (north in this example) could be faced to the devicewhich would fail the application.Therefore, the “Omnipolar” magnetic behavior helps customers by removing the need of magnet pole detectionsystem during production phase.The “Micropower” feature makes the MLX90248 especially suitable for battery-powered device as it combines lowvoltage operation and low current consumption. By using a sleep/awake strategy managed internally, the powerconsumption is drastically reduced. To make a comparison, the MLX90248 consumes 100 times less power than thegeneric low voltage Melexis Hall sensor US3881.As well as Thin SOT package, the MLX90248 is now delivered in a UTQFN package. This new leadless package onlyrequires 3mm2 PCB surface and is 0.43mm maximum thick, which is particularly important in design where spacesaving and miniaturization are the critical factors.REVISION 007 – MARCH 2021390109024802Page 5 of 13

MLX90248Micropower & Omnipolar Hall Switch11. Performance GraphsUnless otherwise specified, performance graphs given at V DD 3.6V and T A 25 ⁰C.Magnetic Thresholds vs. TAMagnetic Thresholds vs. VDDCurrent Consumption vs. TACurrent Consumption vs. VDDConsumption Period vs. TAConsumption Period vs. VDDREVISION 007 – MARCH 2021390109024802Page 6 of 13

MLX90248Micropower & Omnipolar Hall SwitchOutput Saturation Voltage vs. TA12. Application InformationMLX90248VCCC110nFVDDOUTGNDREVISION 007 – MARCH 2021390109024802RPU100kVOUTC2100pFPage 7 of 13

MLX90248Micropower & Omnipolar Hall Switch13. Standard information regarding manufacturability of Melexis productswith different soldering processesOur products are classified and qualified regarding soldering technology, solderability and moisture sensitivity level accordingto following test methods:Reflow Soldering SMD’s (Surface Mount Devices) IPC/JEDEC J-STD-020Moisture/Reflow Sensitivity Classification for Nonhermetic Solid State Surface Mount Devices(classification reflow profiles according to table 5-2)EIA/JEDEC JESD22-A113Preconditioning 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) EN60749-20Resistance of plastic- encapsulated SMD’s to combined effect of moisture and soldering heatEIA/JEDEC JESD22-B106 and EN60749-15Resistance to soldering temperature for through-hole mounted devicesIron Soldering THD’s (Through Hole Devices) EN60749-15Resistance to soldering temperature for through-hole mounted devicesSolderability SMD’s (Surface Mount Devices) and THD’s (Through Hole Devices) EIA/JEDEC JESD22-B102 and EN60749-21SolderabilityFor all soldering technologies deviating from above mentioned standard conditions (regarding peak temperature, temperaturegradient, 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 strengthbetween device and board.Melexis is contributing to global environmental conservation by promoting lead free solutions. For moreinformation on qualifications of RoHS compliant products (RoHS European directive on the Restriction Of theuse of certain Hazardous Substances) please visit the quality page on our website:http://www.melexis.com/quality.aspx14. ESD PrecautionsElectronic semiconductor products are sensitive to Electro Static Discharge (ESD).Always observe Electro Static Discharge control procedures whenever handling semiconductor products.REVISION 007 – MARCH 2021390109024802Page 8 of 13

MLX90248Micropower & Omnipolar Hall Switch15. Package InformationTSOT-3L (SE Package)15.1.1. TSOT-3L – Package dimensions1.32 0.20 mm0.75 0.20 mm15.1.2. TSOT-3L - Sensitive spot positioning1.47 0.20 mmREVISION 007 – MARCH 20213901090248021.18 0.15 mm0.60 0.03 mmPage 9 of 13

MLX90248Micropower & Omnipolar Hall Switch15.1.3. TSOT-3L - Package Marking3Top248EDevice Name248E1212BottomXYXYWWWWCalender weekLast digit of calender yearLast digit of lot#3UTQFN-6L (LD package)15.2.1. UTQFN-6L - Package dimensionsREVISION 007 – MARCH 2021390109024802Page 10 of 13

MLX90248Micropower & Omnipolar Hall Switch0.92 0.10 mm0.24 0.05 mm0.08 0.05 mm15.2.2. UTQFN-6L - Sensitive spot positioningNotes:1. Terminals and exposed pad are for illustration only.2. Hall plate center is aligned to package center.0.60 0.10 mm0.15 0.05 mm15.2.3. UTQFN-6L - Package MarkingTop.4EYWW.4EDevice nameDot used to show pin 1 markYWWCalender weekYear (last digit)REVISION 007 – MARCH 2021390109024802Page 11 of 13

MLX90248Micropower & Omnipolar Hall SwitchSC-70 (SC Package)15.3.1. SC-70 - Package dimensions1.02 0.20 mm0.60 0.20 mm15.3.2. SC-70 - Sensitive spot positioning1.07 0.15 mm0.82 0.15 mm0.61 0.05 mm15.3.3. SC-70 - Package MarkingTop88YLLREVISION 007 – MARCH 2021390109024802YLL5th and 6th digit of lot#Last digit calender yearFixed digitPage 12 of 13

MLX90248Micropower & Omnipolar Hall Switch16. ContactFor the latest version of this document, go to our website at www.melexis.com.For additional information, please contact our Direct Sales team and get help for your specific needs:Europe, AfricaTelephone: 32 13 67 04 95Email : sales europe@melexis.comAmericasTelephone: 1 603 223 2362Email : sales usa@melexis.comAsiaEmail : sales asia@melexis.com17. DisclaimerThe 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 respo nsibility or liability for any errors or inaccuracies thatmay 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 forpurpose. Melexis, its employees and agents and its affiliates' and their employees and agents will not be responsible for any loss, however arising, from the use of, or reliance onthis document. Notwithstanding the foregoing, contractual obligations expressly undertaken in writing by Melexis prevail over this disclaimer.This document is subject to change without notice, and should not be construed as a commitment by Melexis. Therefore, before placing orders or prior to designing the productinto a system, users or any third party should obtain the latest version of the relevant information.Users or any third party must determine the suitability of the product described in this document for its application, including the level of reliability required and determine whetherit is fit for a particular purpose.This document as well as the product here described may be subject to export control regulations. Be aware that export might require a prior authorization from competentauthorities. The product is not designed, authorized or warranted to be suitable in applications requiring extended temperature range and/or unusual environmental requirements.High reliability applications, such as medical life-support or life-sustaining equipment or avionics application are specifically excluded by Melexis. The product may not be used forthe following applications subject to export control regulations: the development, production, processing, operation, maintenance, storage, recognition or proliferation of:1. chemical, biological or nuclear weapons, or for the development, production, maintenance or storage of missiles for such weapons;2. civil firearms, including spare parts or ammunition for such arms;3. defense related products, or other material for military use or for law enforcement;4. any applications that, alone or in combination with other goods, substances or organisms could cause serious harm to persons or goods and that can be used as a means ofviolence in an armed conflict or any similar violent situation.No license nor any other right or interest is granted to any of Melexis' or third party's intellectual property rights.If this document is marked “restricted” or with similar words, or if in any case the content of this document is to be reasonably understood as being confidential, the recipient ofthis document shall not communicate, nor disclose to any third party, any part of the document without Melexis’ express written consent. The recipient shall take all necessarymeasures to apply and preserve the confidential character of the document. In particular, the recipient shall (i) hold document in confidence with at least the same degree of careby which it maintains the confidentiality of its own proprietary and confidential information, but no less than reasonable care; (ii) restrict the disclosure of the document solely toits employees for the purpose for which this document was received, on a strictly need to know basis and providing that such persons to whom the document is disclosed are boundby confidentiality terms substantially similar to those in this disclaimer; (iii) use the document only in connection with the purpose for which this document was received, andreproduce document only to the extent necessary for such purposes; (iv) not use the document for commercial purposes or to the detriment of Melexis or its customers. Theconfidentiality 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 thecourts 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. (2020)IATF 16949 and ISO 14001 CertifiedREVISION 007 – MARCH 2021390109024802Page 13 of 13

This new leadless package only requires 3mm2 PCB surface and is 0.43mm maximum thick, which is particularly important in design where space- . solderability and moisture sensitivity level according to following test methods: Reflow Soldering SMD's . (regarding peak temperature, temperature

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