MLX92242 2-Wire EoL programmable Hall Effect Latch/Switch 1. Features and Benefits 2. Application Examples Wide operating voltage range: from Automotive, Consumer and Industrial 2.7V to 24V Wiper motor Maximum application flexibility by re- Brake light switch programming of all sensor functions Window lifter Customer End-of-Line programming via Door lock VDD pin in the application module for Seatbelt buckle system design optimization Seat positioning Lateral sensing by IMC technology Sunroof/Tailgate opener Wide programmable magnetic Transmission applications Latch/Switch range Electrical power steering Programmable magnetic hysteresis, Speed sensing (motorcycles) 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 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 L UA AAA-300 BU MLX92242 Legend: Temperature Code: L(-40C to 150C) Package Code: UA = TO92-3L SE = TSOT-3L Option Code: 000 => Perpendicular sensitive 100 => Integrated capacitor (UA package only) 200 => IMC (SE package only) 300 => Integrated capacitor and IMC (UA package only) Packing Form: BU = Bulk RE = Reel CA=Papertape in Ammopack CR=Papertape on Reel Ordering example: MLX92242LUA-AAA-x00-BU REVISION 8 SEPTEMBER 2021 Page 1 of 17 3901092242 MLX92242 2-Wire EoL programmable Hall Effect Latch/Switch 4. Functional Diagram VDD Voltage Regulator Under- with Reverse Polarity Voltage Protection Lockout TEST Temperature Bop/Brp Thermal Compensation reference Protection Switched Hall Output Plate CDS Current Sink Amplifier VDD EoL Control EEPROM programming 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 Page 2 of 17 3901092242