ASEK758ECB-200B-T-DK 电流传感器BOARD DEMO 758ECB-200B SENSOR

　　 features and benefits

　　?industry-leading noise performance through proprietary amplifier and filter design techniques

　　?integrated shield greatly reduces capacitive coupling from current conductor to die due to high dv/dt signals, and prevents offset drift in high-side, high-voltage applications

　　?total output error improvement through gain and offset trim over temperature

　　?small package size, with easy mounting capability

　　?monolithic hall ic for high reliability

　　?ultralow power loss: 100 μωinternal conductor resistance

　　?galvanic isolation allows use in economical, high-side current sensing in high-voltage systems

　　?aec-q100 qualified

　　deion

　　the allegro" acs758 family of current sensor ics provideseconomicalandprecise solutions forac ordc current sensing.typical applications include motor control, load detection andmanagement, power supply and dc-to-dc converter control.inverter control, and overcurrent fault detection.

　　the device consists of a precision, low-offset linear hallcircuit with a copper conduction path located near the die.applied current flowing through this copper conduction pathgenerates a magnetic field which the hall ic converts into aproportional voltage.device accuracyis optimized through theclose proximity of the magnetic signal to the hall transducer.a precise, proportional output voltage is provided by thelow-offset, chopper-stabilized bicmos hall ic, which isprogrammed for accuracy at the factory.

　　high-level immunity to current conductor dv/dt and strayelectric fields, offered by allegro proprietary integrated shieldtechnology, provides low output voltage ripple and low offsetdrift in high-side, high-voltage applications.

　　the outputofthe device has a positive slope (>vcc/2) when anincreasingcurrent flows through the primarycopperconductionpath (from terminal 4 to terminal 5), which is the path usedfor current sampling.the internal resistance ofthis conductivepath is 100μ2 typical, providing low power loss.the thickness of the copper conductor allows survival of thedevice at high overcurrent conditions. the terminals of theconductive path are electrically isolated from the signal leads

　　? 李 进

　　? 深圳博瑞图电子科技有限公司

　　?mob :

　　?qq : 52519094

　　?add :深圳市福田区中航路都会轩3305

　　?email : lijin810230@163.com

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