ACS713: Fully Integrated, Hall Effect-Based Linear Current Sensor IC with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor

The Allegro ACS713 provides economical and precise solutions for DC current sensing in industrial, commercial, and communications systems. The device package allows for easy implementation by the customer. Typical applications include motor control, load detection and management, switched-mode power supplies, and overcurrent fault protection. The device is not intended for automotive applications. For the automotive grade version, see ACS715.

该器件由一个精确的，低偏移，线性霍尔传感器电路与铜导电路径位于模具表面附近。流过此铜导电路径的外加电流产生磁场，该磁场由集成霍尔IC感应并转换为比例电压。通过磁信号与霍尔传感器的接近，设备精度得到优化。一个精确的，比例电压是由低偏置，斩波稳定BiCMOS霍尔集成电路，这是为精度编程后封装。

The output of the device has a positive slope (>V_IOUT(Q)) when an increasing current flows through the primary copper conduction path (from pins 1 and 2, to pins 3 and 4), which is the path used for current sensing. The internal resistance of this conductive path is 1.2 mΩ typical, providing low power loss. The thickness of the copper conductor allows survival of the device at up to 5× overcurrent conditions. The terminals of the conductive path are electrically isolated from the sensor IC leads (pins 5 through 8). This allows the ACS713 current sensor IC to be used in applications requiring electrical isolation without the use of opto-isolators or other costly isolation techniques.

ACS713采用小型表面贴装SOIC8封装。引线框架镀有100%亚光锡，与标准无铅印刷电路板组装工艺兼容。在内部，该设备是无铅的，除了倒装芯片高温铅基焊料球，目前免除RoHS。设备在出厂前已完全校准。

• Low-noise analog signal path
• Device bandwidth is set via the new FILTER pin
• 我5µs输出上升时间n response to step input current
• 80 kHz bandwidth
• T时总输出误差1.5%_A= 25°C
• Small footprint, low-profile SOIC8 package
• 1.2 mΩ internal conductor resistance
• 2.1 kV_有效值引脚1-4到引脚5-8的最小隔离电压
• 5.0 V，单电源操作
• 133 to 185 mV/A output sensitivity
• Output voltage proportional to DC currents
• Factory-trimmed for accuracy
• 极稳定的输出偏置电压
• 接近零磁滞
• 电源电压的比例输出