MLX91205 IMC-Hall Current Sensor (Triaxis Technology) Features and Benefits Applications Examples Triaxis Technology AC and/or DC contact-less current Very high sensitivity due to integrated measurement magnetic concentrator ( IMC-Hall) Wideband Magnetic Field Measurement Sensitive to a magnetic field parallel to the Battery Management chip surface AC/DC Converters Linear output voltage proportional to a Motor Control magnetic field Solar Power Converter (MPPT) Wideband: DC to 100kHz Power Management Short response time 8s Low offset and offset drift Very low noise Isolated from current conductor Surface mount SOIC8 package Ordering Information Product Temperature Package Ordering Packing Sensitivity Code Code Code Option Code form Code (Typ.) MLX91205 K (-40C to 150C) DC (SOIC) AAH-003 100 mV/mT TU (Tube) / RE (Reel) MLX91205 K (-40C to 150C) DC (SOIC) AAL-003 280 mV/mT Ordering example: MLX91205KDC-AAH-003-TU 1 Functional diagram 2 General description The new IMC-Hall current sensor MLX91205 is a NC VDD GND single axis integrated magnetic sensor based on the Hall Effect. It produces an analog linear, ratio- metric output voltage proportional to the applied magnetic field parallel with the chip surface. Amplifier Demodulator CO OUT Tria is Modulator The circuit is fabricated using a standard CMOS Buffer A OUT Offset Cancellation process. The additional ferromagnetic layer (IMC-Hall = Integrated Magnetic Concentrator, Triaxis Technology) that is added in a simple Biasing Calibration Unit Unit post-processing step, amplifies the magnetic field and concentrates it on the Hall elements. Therefore, the circuit features very high magnetic PV PC PD sensitivity, low offset, and low noise. The MLX91205 is ideally suited for current sensing in automotive and industrial environments. There are 2 different product versions available. The 91205HB features a linear magnetic field range of 25mT and the 91205LB features a linear range of 10mT. HB refers to a high magnetic field, whereas LB refers to a low magnetic field range. 3901091205 Page 1 of 14 Data Sheet Rev 012 June/13 MLX91205 IMC-Hall Current Sensor (Triaxis Technology) Table of Contents 1 Functional diagram ......................................................................................................... 1 2 General description ........................................................................................................ 1 3 Glossary of Terms .......................................................................................................... 3 4 Maximum ratings ............................................................................................................ 3 5 Pin definitions and descriptions .................................................................................... 3 6 MLX91205 General Electrical Specifications ................................................................ 4 7 MLX91205 Sensor Specific Specifications ................................................................... 4 7.1 91205 LB: Low Field version 10mT (marking xxL) .......................................................................................................................... 4 8 ........................................................................................................................................... 4 8.1 91205HB: High Field version 25mT (marking xxH) ......................................................................................................................... 5 9 Detailed General Description ......................................................................................... 6 10 Unique Features ............................................................................................................ 6 11 Performance Graphs .................................................................................................... 7 11.1 Offset over Temperature .............................................................................................................................................................. 7 11.2 Sensitivity over Temperature ........................................................................................................................................................ 7 12 Applications Information .............................................................................................. 8 12.1 Low current measurement up to 2 A ........................................................................................................................................... 8 12.2 Medium current up to 30 A ......................................................................................................................................................... 8 12.3 High current measurement up to 600 A ...................................................................................................................................... 8 12.4 Customer Calibration with MCU .................................................................................................................................................... 9 13 Application Diagram ................................................................................................... 10 13.1 Direct Single Ended Output ........................................................................................................................................................ 10 13.2 Direct Differential Output ............................................................................................................................................................ 10 14 Standard information regarding manufacturability of Melexis products with different soldering processes ......................................................................................... 11 15 ESD Precautions ......................................................................................................... 12 16 Package Information ................................................................................................... 12 16.1 Package Dimensions .................................................................................................................................................................. 12 16.2 Pinout and marking .................................................................................................................................................................... 13 16.3 Hall plate positioning .................................................................................................................................................................. 13 17 Disclaimer .................................................................................................................... 14 3901091205 Page 2 of 14 Data Sheet Rev 012 June/13