MLX90248ELD-EBA-000-RE

MLX90248 Micropower & Omnipolar Hall Switch Features and Benefits ▪ ▪ ▪ ▪ ▪ ▪ Applications ▪ ▪ ▪ ▪ Micropower consumption ideal for batterypowered applications Omnipolar, easy to use as output switches with both North and South pole Very High Sensitivity Hall Sensor Chopper stabilized amplifier stage Open-Drain Output Operation down to 1.5V ▪ Solid State Switch Handheld Wireless Handset Awake Switch Lid close sensor for battery-powered devices Magnet proximity sensor for reed switch replacement in low duty cycle applications Energy metering Ordering Information Product Code Package Code MLX90248 Temperature Code E Option Code Packing Form Code SE EBA-000 RE MLX90248 E LD EBA-000 RE MLX90248 E SC EBA-000 CN Legend: Temperature Code: Package Code: Packing Form: Ordering example: E for Temperature Range -40°C to 85°C SE for TSOT, LD for UTQFN, SC for SC-70 RE for Reel, CN for Canister MLX90248ESE-EBA-000-RE 1. Functional Diagram 2. General Description The MLX90248 Omnipolar Hall effect sensor technology. It incorporates advanced chopper-stabilization techniques to provide accurate and stable magnetic switch points. The circuit design provides an internally controlled clocking mechanism to cycle power to the Hall element and analog signal processing circuits. This serves to place the high current-consuming portions of the circuit into a “Sleep” mode. Periodically the device is “Awakened” by this internal logic and the magnetic flux from the Hall element is evaluated against the predefined thresholds. If the flux density is above or below the Bop/Brp thresholds, then the output transistor is driven to change states accordingly. While in the “Sleep” cycle the output transistor is latched in its previous state. The design has been optimized for service in applications requiring extended 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 North magnetic field facing the marked side of the package. The output will be latched off (BRP) in the absence of a magnetic field. REVISION 007 – MARCH 2021 390109024802 Page 1 of 13 MLX90248 Micropower & Omnipolar Hall Switch Contents Features and Benefits.................................................................................................................................1 Applications................................................................................................................................................1 Ordering Information .................................................................................................................................1 1. Functional Diagram ................................................................................................................................1 2. General Description................................................................................................................................1 3. Glossary of Terms ...................................................................................................................................3 4. Absolute Maximum Ratings ....................................................................................................................3 5. Pin Definitions and Descriptions .............................................................................................................3 6. Electrical Specifications ..........................................................................................................................4 7. Magnetic Specifications ..........................................................................................................................4 8. Outputs behavior vs. Magnetic Pole .......................................................................................................4 9. Detailed General Description..................................................................................................................5 10. Unique Features ...................................................................................................................................5 11. Performance Graphs ............................................................................................................................6 Magnetic Thresholds vs. TA .............................................................................................................. 6 Magnetic Thresholds vs. VDD ............................................................................................................ 6 Current Consumption vs. TA .............................................................................................................. 6 Current Consumption vs. VDD ........................................................................................................... 6 Consumption Period vs. TA ............................................................................................................... 6 Consumption Period vs. VDD ............................................................................................................. 6 Output Saturation Voltage vs. TA ..................................................................................................... 7 12. Application Information........................................................................................................................7 13. Standard information regarding manufacturability of Melexis products with different soldering processes...............................................................................................................................................8 14. ESD Precautions ...................................................................................................................................8 15. Package Information ............................................................................................................................9 TSOT-3L (SE Package) ....................................................................................................................... 9 UTQFN-6L (LD package).................................................................................................................. 10 SC-70 (SC Package) ......................................................................................................................... 12 16. Contact ...............................................................................................................................................13 17. Disclaimer...........................................................................................................................................13 REVISION 007 – MARCH 2021 390109024802 Page 2 of 13 MLX90248 Micropower & Omnipolar Hall Switch 3. Glossary of Terms Gauss, milliTesla (mT), Units of magnetic flux density 10 Gauss = 1mT 4. Absolute Maximum Ratings Parameter Supply Voltage Symbol VDD Value 5 Units V Supply Current IDD 5 mA Output Voltage VOUT 5 V Output Current IOUT 10 mA Operating Temperature Range TA -40 to 85 ⁰C Storage Temperature Range TS -50 to 150 ⁰C Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. 5. Pin Definitions and Descriptions SC package SE Package LD Package Pin Name Function Pin No (SE) Pin No (LD) Pin No (SC) VDD Power Supply 1 2 1 GND Ground 3 4 3 OUT Output 2 5 2 N.C. Not connected - 1, 3, 6 - Table 1: Pin definitions and descriptions Note: Exposed Pad on LD package is connected to ground REVISION 007 – MARCH 2021 390109024802 Page 3 of 13 MLX90248 Micropower & Omnipolar Hall Switch 6. Electrical Specifications DC Operating Parameters TA = 25oC, VDD = 1.5V to 3.6V (unless otherwise specified) Parameter Symbol Conditions Min Typ. Max Supply Voltage VDD Operating 1.5 3.6 Awake Supply Current IDDawake VDD = 3.6V 3 5 Sleep Supply Current IDDsleep VDD = 3.6V 3.5 6 Average Supply Current IDDav VDD = 3.6V, Average 6.5 10 Output Saturation Voltage VSAT IOUT = 1mA 0.27 0.4 Output Leakage Current ILEAK VDD = 3.6V 1 Awake Period TAW Operating 30 50 120 Sleep Period TSL Operating 25 40 70 Units V mA uA uA V uA us ms Table 2: Electrical specifications 7. Magnetic Specifications DC Operating Parameters TA = 25⁰C, VDD = 1.5V to 3.6V (unless otherwise specified) Parameter Operating Point Release Point Hysteresis Symbol BOP BRP BHYS Min +/-1.1 +/-0.8 0.3 Typ. +/-3.8 +/-2.8 - Max +/-6 +/-5.7 2.3 Units mT mT mT Table 3: Magnetic specifications Note : For typical values, please refer to the performance graphs section 8. Outputs behavior vs. Magnetic Pole Parameter North or South pole “Zero” magnetic pole Test conditions B > |BOP| B < |BRP| OUT Low High Table 5: Outputs behavior vs. magnetic pole Note: The magnetic pole is applied facing the branded side of the package REVISION 007 – MARCH 2021 390109024802 Page 4 of 13 MLX90248 Micropower & Omnipolar Hall Switch 9. Detailed General Description The MLX90248 is originally used in mobile phone applications for open/close lid detection (flip, slide and swivel phone type). The goal of this detection is to switch on or off the application if the lid is opened or closed, in order to save 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 reliable and with increased lifetime compared to usual mechanical contacts. 10. Unique Features The MLX90248 exhibits “Omnipolar” magnetic characteristics. It means the device reacts to both North and South magnetic 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 pole active 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 the south pole of the application magnet and face it to the device to enable the output to be turned on and off. Without any magnet pole detection system, the incorrect magnetic pole (north in this example) could be faced to the device which would fail the application. Therefore, the “Omnipolar” magnetic behavior helps customers by removing the need of magnet pole detection system during production phase. The “Micropower” feature makes the MLX90248 especially suitable for battery-powered device as it combines low voltage operation and low current consumption. By using a sleep/awake strategy managed internally, the power consumption is drastically reduced. To make a comparison, the MLX90248 consumes 100 times less power than the generic 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 only requires 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 2021 390109024802 Page 5 of 13 MLX90248 Micropower & Omnipolar Hall Switch 11. Performance Graphs Unless otherwise specified, performance graphs given at V DD = 3.6V and T A = 25 ⁰C. Magnetic Thresholds vs. TA Magnetic Thresholds vs. VDD Current Consumption vs. TA Current Consumption vs. VDD Consumption Period vs. TA Consumption Period vs. VDD REVISION 007 – MARCH 2021 390109024802 Page 6 of 13 MLX90248 Micropower & Omnipolar Hall Switch Output Saturation Voltage vs. TA 12. Application Information MLX90248 VCC C1 10nF VDD OUT GND REVISION 007 – MARCH 2021 390109024802 RPU 100k VOUT C2 100pF Page 7 of 13 MLX90248 Micropower & Omnipolar Hall Switch 13. 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 14. ESD Precautions Electronic semiconductor products are sensitive to Electro Static Discharge (ESD). Always observe Electro Static Discharge control procedures whenever handling semiconductor products. REVISION 007 – MARCH 2021 390109024802 Page 8 of 13 MLX90248 Micropower & Omnipolar Hall Switch 15. Package Information TSOT-3L (SE Package) 15.1.1. TSOT-3L – Package dimensions 1.32 ± 0.20 mm 0.75 ± 0.20 mm 15.1.2. TSOT-3L - Sensitive spot positioning 1.47 ± 0.20 mm REVISION 007 – MARCH 2021 390109024802 1.18 ± 0.15 mm 0.60 ± 0.03 mm Page 9 of 13 MLX90248 Micropower & Omnipolar Hall Switch 15.1.3. TSOT-3L - Package Marking 3 Top 248E Device Name 248E 1 2 1 2 Bottom X Y XYWW WW Calender week Last digit of calender year Last digit of lot# 3 UTQFN-6L (LD package) 15.2.1. UTQFN-6L - Package dimensions REVISION 007 – MARCH 2021 390109024802 Page 10 of 13 MLX90248 Micropower & Omnipolar Hall Switch 0.92 ± 0.10 mm 0.24 ± 0.05 mm 0.08 ± 0.05 mm 15.2.2. UTQFN-6L - Sensitive spot positioning Notes: 1. Terminals and exposed pad are for illustration only. 2. Hall plate center is aligned to package center. 0.60 ± 0.10 mm 0.15 ± 0.05 mm 15.2.3. UTQFN-6L - Package Marking Top .4E YWW . 4E Device name Dot used to show pin 1 mark Y WW Calender week Year (last digit) REVISION 007 – MARCH 2021 390109024802 Page 11 of 13 MLX90248 Micropower & Omnipolar Hall Switch SC-70 (SC Package) 15.3.1. SC-70 - Package dimensions 1.02±0.20 mm 0.60±0.20 mm 15.3.2. SC-70 - Sensitive spot positioning 1.07±0.15 mm 0.82±0.15 mm 0.61 ± 0.05 mm 15.3.3. SC-70 - Package Marking Top 8 8YLL REVISION 007 – MARCH 2021 390109024802 Y LL 5th and 6th digit of lot# Last digit calender year Fixed digit Page 12 of 13 MLX90248 Micropower & Omnipolar Hall Switch 16. Contact For 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, Africa Telephone: +32 13 67 04 95 Email : sales_europe@melexis.com Americas Telephone: +1 603 223 2362 Email : sales_usa@melexis.com Asia Email : sales_asia@melexis.com 17. Disclaimer The content of this document is believed to be correct and accurate. 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