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MLX91209LVACAA-000CR Scheda tecnica(PDF) 2 Page - Melexis Microelectronic Systems |
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MLX91209LVACAA-000CR Scheda tecnica(HTML) 2 Page - Melexis Microelectronic Systems |
2 / 15 page MLX91209CA Current Sensor IC in VA package 390109120901 Page 2 of 15 MLX91209 Rev 010 March 2016 General Description The MLX91209 is a monolithic programmable Hall sensor IC featuring the planar Hall technology, which is sensitive to the flux density applied orthogonally to the IC surface. The sensor provides an output signal proportional to the applied magnetic flux density and is preferably suited for current measurement. The transfer characteristic of the MLX91209 is programmable (offset, gain). The linear analog output is designed for applications where a very fast response is required, such as inverter applications. In a typical application, the sensor is used in combination with a ring shaped soft ferromagnetic core. The Hall IC is placed in a small air gap and the current conductor is passed through the inner part of the ferromagnetic ring. The ring concentrates and amplifies the magnetic flux on the Hall sensor IC, which generates an output voltage proportional to the current flowing in the conductor. Glossary of Terms ADC Analog to Digital Converter DAC Digital to Analog Converter DNL Differential Non Linearity INL Integral Non Linearity LSB Least Significant Bit MSB Most Significant Bit NC Not Connected PTC Programming Through Connector TC Temperature Coefficient in ppm/°C Tesla Units for the magnetic flux density, 1 mT = 10 Gauss Absolute Maximum Ratings Parameter Symbol Value Units Positive Supply Voltage (overvoltage) Vdd +10 V Reverse Supply Voltage Protection -0.3 V Positive Output Voltage (1) +10 V Output Current Iout ±70 mA Reverse Output Voltage -0.3 V Reverse Output Current -50 mA Package Thermal Resistance Rth 105 °C/W Operating Ambient Temperature Range TA -40 to +150 °C Storage Temperature Range TS -55 to +165 °C Magnetic Flux Density infinite T 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. (1) Valid for supply=10V or supply-pin floating. |
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