mlx90251 Melexis Company, mlx90251 Datasheet
mlx90251
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mlx90251 Summary of contents
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... Output Clamping levels, the thermal Sensitivity drift, the internal bias point and a low-pass filter are all programmable in end-user applications. The MLX90251 has a very stable thermal compensation for both the Sensitivity and the V over a broad temperature range. For ...
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... ESD Precautions........................................................................................................... 18 15 Package Information ..................................................................................................... 19 15.1 VA Package Outline and Hall Plate Position ........................................................... 19 15.2 GO Package Outline ............................................................................................... 20 15.3 GO Pin Out and Marking......................................................................................... 21 15.4 GO Hall Plate Positioning........................................................................................ 21 16 Disclaimer ..................................................................................................................... 22 3901090251 Rev 009 Programmable Linear Hall Effect Sensor )................................................................................ ........................................ 12 Page MLX90251 Data Sheet Nov/06 ...
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... Note: Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute- maximum-rated conditions for extended periods may affect device reliability. 3901090251 Rev 009 Programmable Linear Hall Effect Sensor Units Page MLX90251 for mT. OUT / ∆ B. OUT Data Sheet Nov/06 ...
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... Figure 5-1 Detailed Block Diagram 5.1 Detailed Description Integrated on the MLX90251 is a temperature-compensated quad switched Hall plate, chopper stabilized amplifiers, adjustable output filter, output driver, voltage protection circuitry and a programmable EEPROM with security and redundancy. Programming the EEPROM allows each device to be calibrated in the application ...
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... The ratiometric output voltage is proportional to the supply voltage. When using the supply voltage as a reference for an A/D converter, fluctuations of ±10% in supply voltage are compensated. 3901090251 Rev 009 Programmable Linear Hall Effect Sensor Test Conditions Min Page MLX90251 as specified by the temperature A Typical Max Units Data Sheet Nov/06 ...
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... Programmable Linear Hall Effect Sensor Test Conditions Test Conditions Min †† Test Conditions ° C ° C ° C ° C °C °C °C Page MLX90251 Min Typical Max Units as specified by the temperature A Typical Max Units as specified by the temperature A Min Typical Max Units ± ...
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... For other test conditions, please contact the Melexis Sales representative of your area. 10 Programmable Features The MLX90251 has many programmable features for adjusting the output characteristic. The features are utilized by writing data into the redundant non-volatile EEPROM. Below is a quick list and description of all the programmable parameters ...
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... The OFFSET bit parameter with a resolution of approximately -0.005V. The OFFSET DD parameter is used for fine adjustment of the V large adjustable range allows the MLX90251 to be used in an unipolar magnetic system without limiting the output voltage span. The formula below shows how the AGND and OFFSET parameters combine to set the V ...
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... The MLX90251 also has an additional stage, Fine Gain, for fine tuning the Sensitivity. The stage (parameter FG) follows the RG and provides a 10 bit adjustment. The small signal gain of the FG is within 1.0 and 2.5. The RG and FG parameters are adjusted in the application to calibrate the device's sensitivity (gain) and output slope transfer characteristic. The function for the fine gain is given in the following equation: Note. The one bit parameter INVERT is used to fix the “ ...
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... Figures 10.4-1…10.4-4 Sensitivity versus RG and FG 3901090251 Rev 009 Programmable Linear Hall Effect Sensor Page MLX90251 Data Sheet Nov/06 ...
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... An INVERT value of 1 causes the output voltage to increase in the presence of a North magnetic field and decrease in the presence of a South magnetic field. referenced to the field component perpendicular to the top-face of the MLX90251. 10.6 Clamping Levels (CLAMPLOW, CLAMPHIGH) Two independent values, called the clamping levels, can limit the output voltage range or swing. The CLAMPLOW parameter adjusts the minimum output voltage level, ClampLo ...
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... Filter (FILTER) The MLX90251 includes two programmable low-pass filters located within the chopper amplifier stages. The two low-pass filters are controlled through a 4 bit parameter, FILTER. The FILTER value 0 corresponds to minimum filtering, maximum speed (impulse response time), and maximum output noise. The value 15 provides the maximum filtering, minimum speed, and minimum output noise ...
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... Note: The MLX90251 EEPROM is also redundant. Each parameter bit is written in three separate cells and a “majority voting” is applied to determine its status. A parity error is detected only if two out of the three cells unexpectedly change state ...
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... V (Volts) DD Figure 11-1…11-2 I Versus 3901090251 Rev 009 Programmable Linear Hall Effect Sensor DD 8.5 8 7.5 7 6.5 6 5.5 150 C ° 5 -40 C ° ° 4 Page MLX90251 Typical DDNOM 150 C ° -40 C ° ° 4 (Volts) DD Data Sheet Nov/06 ...
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... However for stable operation, the global output capacitor (C2 + C3) should not be higher than 150nF.If higher capacitors (due to special ESD or EMC requirements) or special circuit configurations are requested, please contact Melexis. The MLX90251 can operate with a high impedance load and C2, a load resistor is not required. Figures 12.1-1…12.1-2 Application Circuits A voltage required on V for programming ...
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... The Melexis PTC hardware and software tools contain built in functions for reading the EEPROM. The MLX90251 can be programmed by using the PTC-04 programmer and the dedicated software tools. The timing and voltage levels are controlled through the programming hardware and software. Further details can be found in the MLX90251 software documentation ...
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... The Melexis PTC software tools contain built in functions and procedures for calibrating the MLX90251. Please refer to the software documentation for more information on how to use the calibration tools. The output of the MLX90251 is ratiometric. To avoid calibration errors from fluctuations in the supply voltage, the output voltage should be measured as a percentage of the supply voltage. ...
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... Hazardous Substances) please visit the quality page on our website: http://www.melexis.com/quality.asp 14 ESD Precautions Electronic semiconductor products are sensitive to Electro Static Discharge (ESD). Always observe Electro Static Discharge control procedures whenever handling semiconductor products. 3901090251 Rev 009 Programmable Linear Hall Effect Sensor Page MLX90251 Data Sheet Nov/06 ...
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... Package Information VA-package: the lead-free VA-package is released for MSL1/245°C. TSSOP14-package (GO-package): the lead-free TSSOP14-package is released for MSL3/260° C. 15.1 VA Package Outline and Hall Plate Position 3901090251 Rev 009 Programmable Linear Hall Effect Sensor Page MLX90251 Data Sheet Nov/06 ...
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... Dimension does not include dambar protrusion. Allowable dambar protrusion shall be 0.08 mm total in excess of the dimension at maximum material condition. Dambar cannot be located on the lower radius of the foot. 3901090251 Rev 009 Programmable Linear Hall Effect Sensor O 12 TYP 4.30 6.4 TYP 4.50 TYP 0.85 0.95 0.09 0.20 1.1 MAX 0.05 0.15 Page MLX90251 0.20 TYP 0.09 MIN 0.09 MIN 0.50 0.75 1.0 TYP Data Sheet Nov/06 ...
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... GO Pin Out and Marking 15.4 GO Hall Plate Positioning 3901090251 Rev 009 Programmable Linear Hall Effect Sensor Page MLX90251 Data Sheet Nov/06 ...
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... Or for additional information contact Melexis Direct: Europe, Africa, Asia: Phone: +32 1367 0495 E-mail: sales_europe@melexis.com 3901090251 Rev 009 Programmable Linear Hall Effect Sensor www.melexis.com America: Phone: +1 603 223 2362 E-mail: sales_usa@melexis.com ISO/TS 16949 and ISO14001 Certified Page MLX90251 Data Sheet Nov/06 ...