US3881LUA-AAA-000-BU Melexis

US3881 Hall Latch Low Voltage & High Sensitivity Features and Benefits Applications Wide operating voltage range from 2.2V to 18V Automotive, Consumer and Industrial Very high magnetic sensitivity Solid-state switch CMOS technology Brushless DC motor commutation Chopper-stabilized amplifier stage Speed detection Low current consumption Linear position detection Open drain output Angular position detection Thin SOT23 3L and flat TO-92 3L both RoHS Proximity detection Compliant packages Ordering information Product code Temperature Code Package Code Option code Packing form code US3881 E SE AAA-000 RE US3881 E UA AAA-000 BU US3881 K SE AAA-000 RE US3881 K UA AAA-000 BU US3881 L SE AAA-000 RE US3881 L UA AAA-000 BU Legend: Temperature code: L(-40 to 150C) E(-40 to 85C) K (-40 to 125C) Package Code: SE = TSOT-23L UA = TO92-3L Packing Form: BU = Bulk RE = Reel Ordering Example: US3881ESE-AAA-000-RE 1. Functional Diagram 2. General Description The Melexis US3881 is a Hall-effect latch designed in mixed signal CMOS technology. The device integrates a voltage regulator, Hall sensor with dynamic offset cancellation system, Schmitt trigger and an open-drain output driver, all in a single package. The low operating voltage and extended choice of temperature range make it suitable for use in automotive, industrial and consumer low voltage applications. The devices are delivered in a Thin Small Outline Transistor (TSOT) for surface mount process and in a Plastic Single In Line (TO-92 flat) for through-hole mount. Both 3-lead packages are RoHS compliant. Page 1 of 11 REVISION 020 13 JUNE 2019 3901003881 US3881 Hall Latch Low Voltage & High Sensitivity Contents 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. General Electrical Specifications ............................................................................................................ 4 7. Magnetic Specifications ......................................................................................................................... 4 8. Output Behaviour versus Magnetic Pole ................................................................................................ 4 9. Detailed General Description ................................................................................................................. 5 10. Unique Features .................................................................................................................................. 5 11. Performance Graphs ............................................................................................................................ 6 12. Application Information ....................................................................................................................... 7 12.1. Typical Three-Wire Application Circuit ............................................................................................ 7 12.2. Two-Wire Circuit ............................................................................................................................... 7 12.3. Automotive and Harsh, Noisy Environments Three-Wire Circuit ................................................... 7 13. Application Comments ......................................................................................................................... 7 14. Standard information regarding manufacturability of Melexis products with different soldering processes .............................................................................................................................................. 8 15. ESD Precautions ................................................................................................................................... 8 16. Package Information ............................................................................................................................ 9 16.1. SE Package (TSOT-3L) ....................................................................................................................... 9 16.2. UA Package (TO-92 flat) .................................................................................................................... 9 17. Contact .............................................................................................................................................. 11 18. Disclaimer .......................................................................................................................................... 11 Page 2 of 11 REVISION 020 13 JUNE 2019 3901003881