ACS712
Fully Integrated, Hall Effect-Based Linear Current Sensor IC with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor全集成，霍尔效应的线性电流传感器IC，具有2.1 kVRMS电压绝缘及低电阻电流导体
Features特点
- Low-noise analog signal path低噪声模拟信号路径
- Device bandwidth is set via the new FILTER pin器件的带宽是通过设置新的筛选器引脚
- 5 μs output rise time in response to step input current 5μs的输出响应上升时间步输入电流
- 80 kHz bandwidth 80 kHz带宽
- Total output error 1.5% at T A = 25°C总输出错误1.5％在T = 25℃
- Small footprint, low-profile SOIC8 package小尺寸，低厚度SOIC8封装
- 1.2 mΩ internal conductor resistance 1.2mΩ的内部导体电阻
- 2.1 kV RMS minimum isolation voltage from pins 1-4 to pins 5-8 2.1千伏RMS从引脚1-4最小绝缘电压引脚5-8
- 5.0 V, single supply operation 5.0 V，单电源供电
- 66 to 185 mV/A output sensitivity 66至185 mV / A输出灵敏度
- Output voltage proportional to AC or DC currents输出电压成正比的交流或直流电流
- Factory-trimmed for accuracy工厂校准的准确性
- Extremely stable output offset voltage极度稳定的输出偏移电压
- Nearly zero magnetic hysteresis几乎为零的磁滞
- Ratiometric output from supply voltage电源电压的成比例输出
Description说明
The Allegro? ACS712 provides economical and precise solutions for AC or DC current sensing in industrial, commercial, and communications systems.在Allegro ? ACS712提供，以及通信系统经济和精确的解决方案的商业，交流或直流电流检测工业。 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.该器件封装便于客户轻松实施的。典型应用包括电动机控制，载荷检测和管理，开关式电源和过电流故障保护。 The device is not intended for automotive applications.该设备不适合汽车应用。
The device consists of a precise, low-offset, linear Hall sensor circuit with a copper conduction path located near the surface of the die.该器件具有精确的低偏置线性霍尔传感器电路的死与铜的表面传导路径附近。 Applied current flowing through this copper conduction path generates a magnetic field which is sensed by the integrated Hall IC and converted into a proportional voltage.外加电流路径流经该铜制电流产生的磁场是感觉到被集成霍尔IC及电压转换成比例。 Device accuracy is optimized through the close proximity of the magnetic signal to the Hall transducer.器件精确度优化，通过将磁性信号靠近的规定向霍尔传感器。 A precise, proportional voltage is provided by the low-offset, chopper-stabilized BiCMOS Hall IC, which is programmed for accuracy after packaging.精确的，成比例的电压由低偏移，斩波稳定的BiCMOS霍尔IC，这是包装之后进行编程的准确性。
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.该器件的输出具有正斜率（“V 输出电流（Q）的 ）当越来越多的电流感应电流流经的主要铜制电流路径（从引脚1和2，到引脚3和4）所使用的路径，这是。 The internal resistance of this conductive path is 1.2 mΩ typical, providing low power loss.该传导通路的内电阻为1.2mΩ的这个典型，具有较低的功率损耗。 The thickness of the copper conductor allows survival of the device at up to 5× overcurrent conditions.售票员厚度的铜允许5 ×的过电流条件下生存的设备高达。 The terminals of the conductive path are electrically isolated from the sensor IC leads (pins 5 through 8).传导通路的接线端的是电气隔离的传感器芯片引脚（引脚5到8）。 This allows the ACS712 current sensor IC to be used in applications requiring electrical isolation without the use of opto-isolators or other costly isolation techniques.这使得ACS712电流传感器是采用技术隔离在其他昂贵的应用要求或未经使用的电气隔离光电隔离器。
The ACS712 is provided in a small, surface mount SOIC8 package.该ACS712采用小型的表面安装SOIC8封装。 The leadframe is plated with 100% matte tin, which is compatible with standard lead (Pb) free printed circuit board assembly processes.引脚架镀以100％雾锡，这是流程兼容与标准无铅（Pb）印刷电路板组装。 Internally, the device is Pb-free, except for flip-chip high-temperature Pb-based solder balls, currently exempt from RoHS.在内部，该器件是无铅，除倒装芯片的高温含铅焊球，目前符合RoHS豁免。 The device is fully calibrated prior to shipment from the factory.该设备完全出厂前校准的。 Allegros products are not to be used in life support devices or systems, if a failure of an Allegro product can reasonably be expected to cause the failure of that life support device or system, or to affect the safety or effectiveness of that device or system. Allegro的产品不得用于生命支持设备或系统，如果一个产品失败的快板可以合理地预期会导致系统发生故障，生命支持设备或，或影响到安全或系统的有效性该设备或。