ACS759ECB-200B-PFF-T Sensors, Transducers

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1. Describe

Allegro™ ACS759 series current sensor ICs provide Economical and accurate solution for AC or DC current sensing. Typical applications include motor control, load detection and management, power and DC-DC converter control, Inverter control and overcurrent fault detection. The device consists of a precision, low-offset linear Hall A circuit with copper conductive paths located near the die. The applied current flowing through this copper conduction path A magnetic field is generated, which the Hall IC converts to proportional voltage. Equipment accuracy is optimized by The magnetic signal is close to the Hall sensor. An accurate, proportional output voltage is given by Low-offset, chopper-stabilized BiCMOS Hall ICs that are Precisely programmed at the factory. High level of immunity to current conductor dV/dt and spurious Electric field, provided by Allegro's proprietary integrated shield technology for low output voltage ripple and low offset drift On the high side, high pressure applications. The output of the device has a positive slope (> VCC/2) when a Increase current flow through primary copper conductor path (from terminal 4 to terminal 5), i.e. the path used for current sampling. This conductive internal resistance The paths are 100 μΩ typical, providing low power loss. The thickness of the copper conductor allows the survival device under high overcurrent conditions. the terminal Conductive paths are electrically isolated from signal leads

2. Feature

    1. Industry-leading noise performance through proprietary Amplifier and Filter Design Techniques

    2. Integrated shielding greatly reduces capacitive coupling between current conductors and chip due to high dV/dt signals and prevents offset drift in high-side, high-voltage applications

    3. Improves total output error with gain and offset trimming over temperature

    4. Small package size for easy installation

    5. High reliability monolithic Hall IC

    6. Ultra-low power dissipation: 100 μΩ internal conductor resistance

    7. Galvanic isolation allows economical high-side current sensing in high voltage systems

    8. 3.0 to 3.6 V, single supply

    9. 120 kHz typical bandwidth

  10. 3 μs output rise time in response to step input current

  11. Output voltage proportional to AC or DC current

  12. Factory trimmed for accuracy

  13. Extremely stable output offset voltage

  14. Almost zero hysteresis

3. Pin configuration