MLX92221LSE-AAA-002-SP

MLX92221-AAA 2-Wire Hall Effect Latch Features and Benefits Applications Wide operating voltage range: from 2.7V to 24V Automotive, Consumer and Industrial Integrated self-diagnostics Wiper motor Chopper-stabilized amplifier stage Window lifter Programmable Built-in negative temperature Seatbelt buckle coefficient Seat positioning Reverse Supply Voltage Protection Sunroof/Tailgate opener Under-Voltage Lockout Protection Electrical power steering Thermal Protection High ESD rating / Excellent EMC performance Ordering information Part No. Temperature Code Package Code Comment MLX92221LUA-AAA-xxx-BU L (-40C to 150C) UA (TO92-3L) BU (Bulk) MLX92221LSE-AAA-xxx-RE L (-40C to 150C) SE (TSOT-23) RE (Reel) The included voltage regulator operates from 2.7 to 24V, 1. Functional Diagram hence covering a wide range of applications. With the built- VDD in reverse voltage protection, a serial resistor or diode on the supply line is not required so that even remote sensors Voltage Regulator Under- can be specified for low voltage operation down to 2.7V with Reverse Polarity Voltage Protection Lockout while being reverse voltage tolerant. TEST Temperature Bop/Brp Thermal Compensation reference Protection In an event of a drop below the minimum supply voltage during operation, the under-voltage lock-out protection will Switched Output automatically freeze the device, preventing the electrical Hall Current Sink Plate CDS perturbation to affect the magnetic measurement circuitry. Amplifier The output current state is therefore only updated based on Trimming a proper and accurate magnetic measurement result. Control Register The two-wire interface not only saves one wire, but also GND allows implementation of diagnostic functions as reverse polarity connection and malfunction detection. The on-chip thermal protection also switches off the output 2. General Description if the junction temperature increases above an abnormally The Melexis MLX92221 is a new generation of Hall-effect high threshold. It will automatically recover once the switches designed in mixed signal submicron CMOS temperature decreases below a safe value. technology. With latching magnetic characteristics, the supply current The device integrates a voltage regulator, Hall sensor with state is turned high by a sufficiently strong South Pole advanced offset cancellation system and a current sink- facing the package branded side. Toggling the state of the configured output driver, all in a single package. supply current from high to low is possible by applying low or no magnetic field. Based on a brand-new platform, the magnetic core is using an improved offset cancellation system allowing faster and The MLX92221 is delivered in a Green and RoHS compliant more accurate processing while being temperature Plastic Single-in-Line (TO-92 flat) for through-hole mount or insensitive and stress independent. In addition, a PCB-less design or in 3-pin Thin Small Outline Transistor temperature coefficient is implemented to compensate the (TSOT) for surface mount process natural behaviour of certain types of magnets becoming weaker with rise in temperature. REVISION 004 JULY 14, 2021 Page 1 of 17 390109222102 MLX92221-AAA 2-Wire Hall Effect Latch Contents Features and Benefits ................................................................................................................................ 1 Applications ............................................................................................................................................... 1 Ordering information ................................................................................................................................. 1 1. Functional Diagram ................................................................................................................................ 1 2. General Description ............................................................................................................................... 1 3. Absolute Maximum Ratings.................................................................................................................... 4 4. General Electrical Specifications ............................................................................................................. 5 5. Specifications ......................................................................................................................................... 6 MLX92221LSE-AAA-001 ..................................................................................................................... 6 MLX92221LSE-AAA-002 ..................................................................................................................... 6 MLX92221LSE-AAA-003 ..................................................................................................................... 6 MLX92221LUA-AAA-004 .................................................................................................................... 7 MLX92221LUA-AAA-005 .................................................................................................................... 7 MLX92221LUA-AAA-006 .................................................................................................................... 7 MLX92221LUA-AAA-007 .................................................................................................................... 7 6. Magnetic Behavior ................................................................................................................................. 8 7. Performance Graphs .............................................................................................................................. 9 I vs. T .......................................................................................................................................... 9 OFFLow J I vs. T ........................................................................................................................................ 9 OFFHigh J I vs. T ............................................................................................................................................... 9 ON J I vs. V ....................................................................................................................................... 9 OFFLow DD I vs. V ...................................................................................................................................... 9 OFFHigh DD I vs. V ............................................................................................................................................ 9 ON DD V de-rating ..................................................................................................................................... 10 DD Power de-rating ................................................................................................................................ 10 8. Application Information ....................................................................................................................... 11 Typical Automotive Application Circuit ........................................................................................... 11 Automotive and Harsh, Noisy Environments Application Circuit .................................................. 11 Strobing VDD application (used for reduced self-heating) .............................................................. 11 9. Standard information regarding the manufacturability of Melexis products ........................................ 12 10. ESD Precautions ................................................................................................................................. 12 11. Package Information .......................................................................................................................... 13 REVISION 004 JULY 14, 2021 Page 2 of 17 390109222102