ACS758LCB 050B PFF T PDF

Изключително издръжливата заградена метална конструкция придава на FaradayCage ефективност, необходима за ефективното екраниране на тези компоненти от статично зареждане. Всички продукти ще бъдат опаковани в антистатичен плик. Изпраща се с ESD антистатична защита. Етикетът на външната опаковка на ESD ще използва информацията на нашата компания: Част за дърво, марка и количество. Ние ще инспектираме всички стоки преди изпращането, ще гарантираме, че всички продукти са в добро състояние и ще гарантираме, че частите са нови оригинални технически данни. След като всички стоки са сигурни, че няма никакви проблеми след опаковката, ние ще опаковаме безопасно и ще изпратим чрез глобален експрес.

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Typical applications include motor control, load detection and management, power supply and DC-to-DC converter control, inverter control, and overcurrent fault detection. The device consists of a precision, low-offset linear Hall circuit with a copper conduction path located near the die. Applied current flowing through this copper conduction path generates a magnetic field which the Hall IC converts into a proportional voltage.

Device accuracy is optimized through the close proximity of the magnetic signal to the Hall transducer. A precise, proportional output voltage is provided by the low-offset, chopper-stabilized BiCMOS Hall IC, which is programmed for accuracy at the factory. The thickness of the copper conductor allows survival of the device at high overcurrent conditions. CF is for optimal noise management, with values that depend on the application. This allows the ACS family of sensor ICs to be used in applications requiring electrical isolation without the use of opto-isolators or other costly isolation techniques.

The device is fully calibrated prior to shipment from the factory. The ACS family is lead Pb free. The heavy gauge leadframe is made of oxygen-free copper. The maximum allowed current is limited by TJ max only. Allegro MicroSystems, Inc.

Characteristic Definitions section of this datasheet. Output filtered. P Allegro MicroSystems, Inc. VIOUT 0. The change in device output in response to a 1 A change through the primary conductor. The noise floor is derived from the thermal and shot noise observed in Hall elements.

Nonlinearity ELIN. The degree to which the voltage output from the IC varies in direct proportion to the primary current through its half-scale amplitude. Nonlinearity in the output can be attributed to the saturation of the flux concentrator approaching the half-scale current. The output of the device when the primary current is zero.

Electrical offset voltage VOE. The magnetic offset is due to the residual magnetism remnant field of the core material. The magnetic offset error is highest when the magnetic circuit has been saturated, usually when the device has been subjected to a full-scale or high-current overload condition.

The magnetic offset is largely dependent on the material used as a flux concentrator. The larger magnetic offsets are observed at the lower operating temperatures. The maximum deviation of the actual output from its ideal value, also referred to as accuracy, illustrated graphically in the output voltage versus current chart on the following page. Accuracy at the zero current flow including temperature effects.

Accuracy at the halfscale current flow including temperature effects. Symmetry ESYM. The degree to which the absolute voltage output from the IC varies in proportion to either a positive or negative half-scale primary current. The device features a ratiometric output. When the supply is ramped to its operating voltage, the device requires a finite time to power its internal components before responding to an input magnetic field.

Rise time tr. The time required for the device output to reflect a change in the primary current signal. Propagation delay is attributed to inductive loading within the linear IC package, as well as in the inductive loop formed by the primary conductor geometry.

Propagation delay can be considered as a fixed time offset and may be compensated. Allegro patented a Chopper Stabilization technique that nearly eliminates Hall IC output drift induced by temperature or package stress effects. This offset reduction technique is based on a signal modulationdemodulation process. Modulation is used to separate the undesired DC offset signal from the magnetically induced signal in the frequency domain.

Then, using a low-pass filter, the modulated DC offset is suppressed while the magnetically induced signal passes through the filter. As a result of this chopper stabilization approach, the output voltage from the Hall IC is desensitized to the effects of temperature and mechanical stress. This technique produces devices that have an extremely stable Electrical Offset Voltage, are immune to thermal stress, and have precise recoverability after temperature cycling.

This technique is made possible through the use of a BiCMOS process that allows the use of low-offset and low-noise amplifiers in combination with high-density logic integration and sample and hold circuits. The products described herein are manufactured under one or more of the following U. Before placing an order, the user is cautioned to verify that the information being relied upon is current. The information included herein is believed to be accurate and reliable.

However, Allegro MicroSystems, Inc. For the latest version of this document, visit our website: www.

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