MLX92242LUA-AAA-000-BU

MLX92242 2-Wire EoL programmable Hall Effect Latch/Switch 1. Features and Benefits ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ 2. Application Examples ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ Wide operating voltage range: from 2.7V to 24V Maximum application flexibility by reprogramming of all sensor functions Customer End-of-Line programming via VDD pin in the application module for system design optimization Lateral sensing by IMC technology Wide programmable magnetic Latch/Switch range Programmable magnetic hysteresis, active pole, output polarity Programmable permanent magnet Temperature Coefficient compensation from 0 to -2000ppm/°C Integrated self-diagnostic functions activating dedicated Safe Mode Reverse supply voltage protection Under-Voltage Lockout protection Thermal protection Integrated capacitor for PCB less designs HW component Qualified according to ISO26262-8:13 for use in safety critical systems Automotive, Consumer and Industrial Wiper motor Brake light switch Window lifter Door lock Seatbelt buckle Seat positioning Sunroof/Tailgate opener Transmission applications Electrical power steering Speed sensing (motorcycles) 3. Ordering Information Product Code Temperature Code Package Code Option Code Packing Form Code MLX92242 L UA AAA-000 BU MLX92242 L SE AAA-000 RE MLX92242 L UA AAA-100 BU MLX92242 L SE AAA-200 RE MLX92242 L UA AAA-300 BU Legend: Temperature Code: Package Code: Option Code: Packing Form: Ordering example: REVISION 8 – SEPTEMBER 2021 3901092242 L(-40°C to 150°C) UA = TO92-3L | SE = TSOT-3L 000 => Perpendicular sensitive 100 => Integrated capacitor (UA package only) 200 => IMC (SE package only) 300 => Integrated capacitor and IMC (UA package only) BU = Bulk | RE = Reel | CA=Papertape in Ammopack | CR=Papertape on Reel MLX92242LUA-AAA-x00-BU Page 1 of 17 MLX92242 2-Wire EoL programmable Hall Effect Latch/Switch 4. Functional Diagram VDD Voltage Regulator with Reverse Polarity Protection TEST Temperature Compensation Switched Hall Plate UnderVoltage Lockout Bop/Brp reference Thermal Protection Output Current Sink CDS Amplifier VDD EoL programming Control EEPROM GND 5. General Description The Melexis MLX92242 is based on the Melexis Hall-effect switch latest platform, designed in mixed signal submicron CMOS technology. The device integrates a voltage regulator, Hall sensor with advanced offset cancellation system and a current sink-configured output driver and integrated capacitor all in a single package. Lateral sensing option is available by using the Melexis IMC technology. Based on the proven in use platform, the magnetic core is using an improved offset cancellation system allowing faster and more accurate processing while being temperature insensitive and stress independent. In addition a pre-programmable temperature coefficient is implemented to compensate the natural behavior of certain types of magnets becoming weaker with rise in temperature. The included voltage regulator operates from 2.7 to 24V, hence covering a wide range of applications. With the built-in reverse voltage protection, a serial resistor or diode on the supply line is not required so that even remote sensors can be specified for low voltage operation down to 2.7V while being reverse voltage tolerant. In an event of a drop below the minimum supply voltage during operation, the under-voltage lock-out protection will automatically freeze the device, preventing the electrical perturbation to affect the magnetic measurement circuitry. The output current state is therefore only updated based on a proper and accurate magnetic measurement result. The two-wire interface not only saves one wire, but also allows implementation of diagnostic functions as reverse polarity connection and malfunction detection. The on-chip thermal protection also switches off the output if the junction temperature increases above an abnormally high threshold. It will automatically recover once the temperature decreases below a safe value. The MLX92242 is delivered in a Green and RoHS compliant Plastic Single-in-Line (TO-92 flat) for through-hole mount, or PCB-less design with integrated capacitor or in 3-pin Thin Small Outline Transistor (TSOT) for surface mount process. REVISION 8 – SEPTEMBER 2021 3901092242 Page 2 of 17 MLX92242 2-Wire EoL programmable Hall Effect Latch/Switch Contents 1. Features and Benefits ............................................................................................................................ 1 2. Application Examples ............................................................................................................................. 1 3. Ordering Information ............................................................................................................................. 1 4. Functional Diagram ................................................................................................................................ 2 5. General Description ............................................................................................................................... 2 6. Glossary of Terms................................................................................................................................... 4 7. Absolute Maximum Ratings.................................................................................................................... 4 8. General Electrical Specifications............................................................................................................. 5 9. Magnetic Specifications ......................................................................................................................... 6 9.1. MLX92242LUA-AAA-000, MLX92242LSE-AAA-000 and MLX92242LUA-AAA-100 ...........................6 9.2. MLX92242LSE-AAA-200 and MLX92242LUA-AAA-300 .....................................................................7 10. Magnetic Behavior ............................................................................................................................... 9 10.1. Latch sensor ......................................................................................................................................9 10.2. Unipolar Switch sensor .....................................................................................................................9 11. Application Information ..................................................................................................................... 10 11.1. Typical Automotive Application Circuit......................................................................................... 10 11.2. Automotive and Harsh, Noisy Environments Application Circuit ................................................ 10 11.3. Power Dissipation Derating Curve ................................................................................................ 11 11.4. Voltage Derating Curve .................................................................................................................. 11 12. Standard information regarding manufacturability of Melexis products ............................................ 12 13. ESD Precautions ................................................................................................................................. 12 14. Package Information .......................................................................................................................... 13 14.1. TSOT-3L (SE Package) ..................................................................................................................... 13 14.2. TO92-3L (UA Package) ................................................................................................................... 15 15. Contact .............................................................................................................................................. 17 16. Disclaimer .......................................................................................................................................... 17 REVISION 8 – SEPTEMBER 2021 3901092242 Page 3 of 17 MLX92242 2-Wire EoL programmable Hall Effect Latch/Switch 6. Glossary of Terms Tesla TC NC POR IMC Units for the magnetic flux density, 1 mT = 10 Gauss Temperature Coefficient in ppm/°C Not Connected Power on Reset integrated magnetic concentrator (lateral sensing) 7. Absolute Maximum Ratings Parameter Symbol Value Units VDD +28 V Supply Voltage (Load Dump) (1, 4) VDD +32 V Supply Current (1, 2, 3) IDD +20 mA (1, 3, 4) IDD +50 mA Reverse Supply Voltage (1, 2) VDDREV -24 V Reverse Supply Voltage (1, 4) VDDREV -30 V Reverse Supply Current (1, 2, 5) IDDREV -20 mA IDDREV -50 mA TJ +165 C ESD Sensitivity – HBM (7) - 8 kV ESD Sensitivity – System level (8) - 15 kV - 1000 V B Unlimited mT Supply Voltage Supply Current (1, 2) Reverse Supply Current (1, 4, 5) Maximum Junction Temperature ESD Sensitivity – CDM (9) Magnetic Flux Density (6) Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute maximum rated conditions for extended periods may affect device reliability. 1 The maximum junction temperature should not be exceeded For maximum 1 hour 3 Including current through protection device 4 For maximum 500ms 5 Through protection device 6 For 1000 hours 7 Human Model according AEC-Q100-002 standard 8 Indirect discharge according VW TL82466 standard, typical value, only for option MLX92242LUA -AAA-1xx and -3xx 9 Charged Device Model according AEC-Q100-011 standard 2 REVISION 8 – SEPTEMBER 2021 3901092242 Page 4 of 17 MLX92242 2-Wire EoL programmable Hall Effect Latch/Switch 8. General Electrical Specifications DC Operating Parameters VDD = 2.7V to 24V, TJ = -40°C to 165°C (unless otherwise specified) Parameter Symbol Test Conditions Min Typ(1) OFF Supply Current (selectable by a dedicated bit) ON Supply Current Reverse Supply current Safe Mode Supply Current Supply Current Rise/Fall Time (2) IOFF VDD = 3.5 to 24V ION IDDREV ISAFE tR/tF VDD = 3.5 to 24V VDD = -16V Power-On Time (3, 4) tON Chopping Frequency fCHOP Delay Time (2, 5) tD Output Jitter (p-p) (2, 6) tJITTER Maximum Switching Frequency (2, 7) fSW Under-voltage Lockout Threshold Under-voltage Lockout Reaction time (2) Max Programming Supply Voltage VUVL tUVL VDDprog Integrated bypass capacitor CBP Thermal Protection Activation Thermal Protection Release UA Package Thermal Resistance SE Package Thermal Resistance TPROT TREL RTHJA RTHJA VDD = 12V, CLOAD = 50pF to GND VDD = 5V, dVDD/dt > 2V/us, activated output with >1mT overdrive Average over 1000 successive switching events @10kHz, Latch, BOP set to 5mT, triangle wave magnetic field with B>±20mT Over 1000 successive switching events @10kHz, Latch, BOP set to 5mT, triangle wave magnetic field with B>±20mT Latch, BOP set to 5mT, triangle wave magnetic field with B>±20mT Only for options MLX92242LUAAAA-1xx and -3xx Max Units 2 5 12 -1 0.1 0.3 5 6.9 17 1 1 mA mA mA mA mA µs - 40 70 µs - 350 - kHz - 7.5 - µs - ±3.5 - µs - 50 - kHz - 1 22 2.7 28 V µs V - 68 - nF - 190(8) 180(8) 200 300 - °C °C °C/W °C/W 1 Typical values are defined at T A = +25°C and V DD = 12V. 2 Guaranteed by design and verified by characterization, not production tested. 3 The Power-On Time represents the time from reaching V DD = 2.7V to the first refresh of the supply current state. 4 Power-On Slew Rate is not critical for the proper device start-up. 5 The Delay Time is the time from magnetic threshold reached to the start of the output switching. 6 Output jitter is the unpredictable deviation of the Delay time. 7 Maximum switching frequency corresponds to the maximum frequency of the applied magnetic field which is detected without loss of pulses. 8 T PROT and TREL are the corresponding junction temperature values. REVISION 8 – SEPTEMBER 2021 3901092242 Page 5 of 17 MLX92242 2-Wire EoL programmable Hall Effect Latch/Switch 9. Magnetic Specifications 9.1. MLX92242LUA-AAA-000, MLX92242LSE-AAA-000 and MLX92242LUA-AAA-100 DC Operating Parameters VDD = 3.5V to 24V, TJ = -40°C to 150°C (unless otherwise specified) Symbol Test Conditions Min Typ(1) Max Units (2) BOP -100 - 100 mT Factory pre-programmed Operating Point, Switch BOP 26 28 30 mT Factory pre-programmed Release Point, Switch BRP 19 21 23 mT BOP Magnitude Programming (3) - 8 - bit BOP Polarity Selection - 1 - bit -2000 - 0 ppm/°C - 5 - bit Switch/Latch Function Selection - 1 - bit Proportional/Absolute Hysteresis Selection - 1 - bit Hysteresis Programming (7) - 5 - bit 0.025 - 0.800 - 0 - 3.1 mT -0.6 0 0.6 mT -0.7 0 0.7 mT Parameter Operating Point Range BOP/BRP Temperature Coefficient Programming Range (4, 5) BOP/BRP Temperature Coefficient Programming TC (6) VDD = 5V, TJ = 25°C VDD = 5V, TJ = 25°C, programming target 28mT VDD = 5V, TJ = 25°C, programming target 28mT, HYSRATIO = 0.75 VDD = 5V, Latch with BOP = 28mT, BRP = -28mT Proportional Hysteresis Ratio Programming Range HYSRATIO = BHYSPR / BOP (4) HYSRATIO Programming step 0.025 Absolute Hysteresis Range (4) BHYSABS Absolute Hysteresis tolerance (8) BHYSTOL Absolute Hysteresis tolerance (8) BHYSTOL BOP, BRP and BHYSPR life time drift Programming step 0.1mT BHYSABS = 0.8mT to 1.6mT, BOP = 3mT, VDD = 3.5 to 14V BHYSABS = 1.7mT to 3.1mT, BOP = 3mT, VDD = 3.5 to 14V HTOL 1000h at TJ = 165°C -(4%+0.2mT) 4%+0.2mT Output Polarity Selection - 1 - Bit VDD Programming Lock - 1 - bit 1 Typical values are defined at TA = +25°C and VDD = 5V Guaranteed by correlation with production test at B = 28mT and verified by characterization 3 The programming step is typically from 0.4% to 0.8% of the programmed BOP value for |BOP| ≥ 2mT and 0.016mT for |BOP| ≤ 2mT 4 The minimum and maximum limits are typical values 5 The factory pre-programmed TC value is -2000 ppm/°C 6 The B /B Temperature Coefficient is calculated using the following formula: OP RP (𝐵𝑂𝑃𝑇2 − 𝐵𝑅𝑃𝑇2 ) − (𝐵𝑂𝑃𝑇1 − 𝐵𝑅𝑃𝑇1 ) 𝑝𝑝𝑚 𝑇𝐶 = ∗ 106 , ; 𝑇1 = 25℃; 𝑇2 = 150℃ (𝐵𝑂𝑃𝑇1 − 𝐵𝑅𝑃𝑇1 ) ∗ (𝑇2 − 𝑇1 ) ℃ 7 Programming of very low hysteresis magnitude (