MLX92251LSE-AxA Dual Hall Effect Latch with Speed & Direction Detection Features and Benefits Applications Operating Voltage from 2.7V to 24V Windows lifter with Anti-Pinch feature Two Integrated Hall plates for Direction Rotation speed & direction detection Detection Linear speed & direction detection Latching Magnetic Characteristics Angular position detection Speed & Direction Open-Drain Outputs Power closures with Anti-Pinch features Direction Output updated prior Speed Output Excellent Temperature Stability Reverse Supply Voltage Protection Output Current Limitation and Auto-Shutoff Under-Voltage Lockout Protection Ordering information Part No. Temperature Code Sensitivity Package Code Packing Form MLX92251LSE-AAA-000-RE L (-40C to 150C) 7.5 mT SE (TSOT-5L) RE (Tape & Reel) MLX92251LSE-ABA-000-RE L (-40C to 150C) 2.5 mT SE (TSOT-5L) RE (Tape & Reel) Legend: Temperature Code: L for Temperature Range -40C to 150C Package Code: SE for TSOT, Packing Form: RE for Reel Ordering example: MLX92251LSE-AAA-000-RE process to ensure a fixed 1. Functional Diagram VDD spacing of 1.45mm between the sensing elements. The first Hall plate signal is used to provide the speed signal Voltage Regulator with Reverse Polarity output. The combination of both the first and second Hall Protection Switched Hall plate signals is then internally processed to directly deliver Plate CDS SP Amplifier a direction signal output. Open-Drain Output Switched The MLX92251 shares the MLX922xx-based platform, Hall Plate CDS synonym of high performance in terms of electrical DIR Amplifier Direction Open-Drain specification, magnetic specification and protection level. Output Detection With latching magnetic characteristics, the speed (SP) Timing Reference Logic output is turned low or high respectively with a sufficiently strong South or North pole facing the package top side. GND When removing the magnetic field, the device keeps its previous state. 2. General Description The direction (DIR) output is latched in Low or High state depending on the movement direction of the applied The Melexis MLX92251 is a second generation Hall-effect magnetic field, as a result of certain magnetic pulse dual latch designed in mixed signal CMOS technology. The sequence on both Hall sensors. device integrates a voltage regulator, two Hall sensors with advanced offset cancellation system and two open-drain The MLX92251 is delivered in a Green compliant 5-pin Thin output drivers, all in a single package. Small Outline Transistor (TSOT) for surface-mount process. Two Hall plates are integrated on the same piece of silicon, thus using the high precision of the wafer fabrication REVISION 003 JAN 17, 2018 Page 1 of 13 390109225103 MLX92251LSE-AxA Dual Hall Effect Latch with Speed & Direction Contents 1. Functional Diagram ................................................................................................................................ 1 2. General Description ............................................................................................................................... 1 3. Glossary of Terms................................................................................................................................... 3 4. Absolute Maximum Ratings.................................................................................................................... 3 5. General Electrical Specifications ............................................................................................................. 4 6. Magnetic Specifications ......................................................................................................................... 5 6.1. MLX92251LSE-AAA-000 ..................................................................................................................... 5 6.2. MLX92251LSE-ABA-000...................................................................................................................... 5 7. Output Behaviour versus Magnetic Pole ................................................................................................ 6 8. Application Information ......................................................................................................................... 7 8.1. Default Application Schematic ........................................................................................................... 7 8.2. Recommended Application Schematic for ISO7637-2 (pulses 5a and 5b) ..................................... 7 8.3. Speed (SP) Output Behavior vs. BOP/BRP ......................................................................................... 7 8.4. Output Jitter, Speed Signal Delay and Direction Detection ............................................................. 8 8.5. UV lockout and POR behaviour.......................................................................................................... 8 9. Performance Graphs .............................................................................................................................. 9 9.1. Magnetic parameters vs. T ............................................................................................................... 9 A 9.2. Magnetic parameters vs. V ............................................................................................................. 9 DD 9.3. V vs. T .......................................................................................................................................... 9 DSON A 9.4. V vs. V ........................................................................................................................................ 9 DSON DD 9.5. I vs. T ............................................................................................................................................... 9 DD A 9.6. I vs. V ............................................................................................................................................ 9 DD DD 9.7. I vs. T .......................................................................................................................................... 10 LEAK A 9.8. I vs. V ........................................................................................................................................ 10 LEAK DD 9.9. Power Derating vs. T ....................................................................................................................... 10 A 10. Standard information regarding manufacturability of Melexis products with different soldering processes ............................................................................................................................................ 11 11. ESD Precautions ................................................................................................................................. 11 12. SE Package Information ...................................................................................................................... 12 12.1. Pin Definitions and Descriptions .................................................................................................... 12 13. Contact .............................................................................................................................................. 13 14. Disclaimer .......................................................................................................................................... 13 REVISION 003 JAN 17, 2018 Page 2 of 13 390109225103