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

ACS37002是一款400kHz全集成霍尔效应电流传感器，具有非常高的精度，非常适合用于要求最苛刻的功率转换应用的控制回路。电流流过内部导体，将产生的磁场耦合到霍尔传感器IC。由于电流和集成电路之间没有物理连接，因此实现了高电压隔离。电流由两个霍尔板差分感应，霍尔板减去干扰的外部共模磁场。传感器经过工厂微调，在整个工作范围内提供高精度，无需客户亚博尊贵会员编程。

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封装是Allegro的最新产品，结合了0.27 mOhm的最佳导体电阻和5 kVrms的最高隔离额定值，适用于需要超低功率损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