ACS37002: 400 kHz,高精度电流传感器with Pin-Selectable Gains

ACS37002是400kHz的完全集成的霍尔效应电流传感器，精度非常高，非常适用于控制循环最苛刻的电源转换应用。亚博尊贵会员电流流过耦合到霍尔传感器IC产生的磁场的内部导体。由于电流和IC之间没有物理连接，实现了高压隔离。通过减去干扰外部共模磁场的两个霍尔板差异地感测电流。该传感器在整个操作范围内提供高精度，无需客户编程。

The sensor has an analog output and a reference output for signal integrity in noisy environments. A fast over-current fault output is included, having a user-configurable threshold via an analog input pin, providing short- circuit detection and enhanced system protection. The sensor also has four user-selectable gain options in the same device with two logic inputs without the need of extra components. This provides designers flexibility, and minimizes the overall bill-of-material for systems that need different current sensing ranges.

The ACS37002 is available in three different SOICW-16 packages:

• LA package is optimized for higher sensitivity and lower noise;
• MA package provides high isolation of 4.8 kVrms;
• MC包装是Allegro的最新版本，将最佳导电电阻与0.27 MoHM的最佳导体电阻相结合，最高的隔离额定值为5 kVrms，适用于需要超低功耗和高强度隔离的应用。亚博尊贵会员

• Wide Operating Bandwidth 400kHz
• Internal conductor resistance as low as 0.27mΩ (MC package)
• 1% Sensitivity error from -40 to 125ºC (KMA version)
• Pin-selectable Gain Options (4)
• Fast over-current detection 1.5µs max response time