MLX91205KDC-AAL-003-TU

MLX91205 ® ® IMC-Hall Current Sensor (Triaxis Technology) Features and Benefits Applications Examples  Triaxis® Technology  Very high sensitivity due to integrated magnetic concentrator ( IMC-Hall®)  Sensitive to a magnetic field parallel to the chip surface  Linear output voltage proportional to a magnetic field  Wideband: DC to 100kHz  Short response time 8μs  Low offset and offset drift  Very low noise  Isolated from current conductor  Surface mount SOIC8 package  AC and/or DC contact-less current measurement  Wideband Magnetic Field Measurement  Battery Management  AC/DC Converters  Motor Control  Solar Power Converter (MPPT)  Power Management Ordering Information Product Code MLX91205 MLX91205 Temperature Code K (-40°C to 150°C) K (-40°C to 150°C) Package Code DC (SOIC) DC (SOIC) Ordering Option Code AAH-003 AAL-003 Packing form Code TU (Tube) / RE (Reel) Sensitivity (Typ.) 100 mV/mT 280 mV/mT Ordering example: MLX91205KDC-AAH-003-TU 1 Functional diagram NC Tria  is™ VDD GND Amplifier Modulator Demodulator Buffer Offset Cancellation Biasing Unit 2 General description Calibration Unit PV PC PD CO_OUT A_OUT The new IMC-Hall® current sensor MLX91205 is a single axis integrated magnetic sensor based on the Hall Effect. It produces an analog linear, ratiometric output voltage proportional to the applied magnetic field parallel with the chip surface. The circuit is fabricated using a standard CMOS process. The additional ferromagnetic layer (IMC-Hall® = Integrated Magnetic Concentrator, Triaxis® Technology) that is added in a simple post-processing step, amplifies the magnetic field and concentrates it on the Hall elements. Therefore, the circuit features very high magnetic 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 Rev 012 Page 1 of 14 Data Sheet 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 Rev 012 Page 2 of 14 Data Sheet June/13 MLX91205 ® ® IMC-Hall Current Sensor (Triaxis Technology) 3 Glossary of Terms Gauss (G), Tesla (T): Magnetic flux density units where 1 mT = 10 G. ADC: Analog-to-Digital Converter TC: Sensitivity Temperature Coefficient (in ppm/Deg.C.). TM Triais : The Triais™ technology refers to the Melexis Hall technology that is based on both planar and vertical (bulk & IMC) Hall plates. This technology allows the realization of Hall effect sensors able to sense the flux density along the 3 axis (i.e. X, Y & Z) as well as position sensors able to sense the magnetic vector over 360 degrees. IMC: Integrated Magneto Concentrator. It concentrates the magnetic flux lines and bends them at the extremity under the planar Hall plate. Furthermore, it can provide some magnetic gain factor. 4 Maximum ratings Parameter Units Supply Voltage, VDD (overvoltage) 6V Supply Voltage, VDD (operating) 5.5V Reverse Voltage Protection 0V Operating Temperature Range, TA -40 to +125 C Storage Temperature Range, TS -40 to +150 C Table 1: Absolute maximum ratings Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute maximum rated conditions for extended periods may affect device reliability. 5 Pin definitions and descriptions Pin Number 1 2 3 4 Pin Name A_out VDD NC PV Function Analog Output Supply Pin 1 B Factory Programming Pin (default VDD) 5 GND Supply Common 6 PD Factory Programming Pin (default GND) 7 PC Factory Programming Pin (default VDD) 8 CO_out Common Output (VDD/2) Table 2: Pin description MLX91205 3901091205 Rev 012 Page 3 of 14 Magnetic sensitive direction Data Sheet June/13 MLX91205 ® ® IMC-Hall Current Sensor (Triaxis Technology) 6 MLX91205 General Electrical Specifications o o DC Operating Parameters TA = -40 C to +125 C, VDD = 5.000V (unless otherwise specified) Parameter Symbol Nominal Supply Voltage Vdd Supply Current Idd Common Output CO_Out Output Current Iout Output Load Resistance Rload Output Load Capacitance Cload Start-up cycle Ts Table 3: Electrical specifications Test Conditions Iout=0mA Referring to VDD/2 Min 4.5 -50 -1 5 Typ 5 11 VDD/2 Max 5.5 16 +50 1 1000 150 Units V mA mV mA kΩ pF μs 7 MLX91205 Sensor Specific Specifications 7.1 91205 LB: Low Field version 10mT (marking xxL) o o DC Operating Parameters TA = -40 C to 125 C, VDD = 5.000V, differential output (i.e. Vout = A_out -CO_out), unloaded. Unless otherwise specified. Parameter. Symbol Test Conditions Min Typ Max Units Magnetic Sensitivity S(1) 275 280 285 V/T Magnetic Sensitivity over Temp. ST(1) T=25°C, B = BL T= -40, 25, 125°C; See also below 10.2 270 280 290 V/T Thermal Sensitivity Drift Offset Voltage TC Voff T= 25°C T= 25°C -20