ACS772型: 200kHz, 1.5% Max Tolerance, 100 µΩ Internal Resistance Module-alternative Current Sensor for High Current and High Voltage Applications

The ACS772 is an automotive grade, 200KHz Bandwidth Current Sensor IC in Allegro’s proprietary CB package. It offers a wide current sensing range (50A to 400A) and very low power loss achieved by the 100 μΩ internal resistance of its conductive path. The ACS772 achieve the highest performance in the CB package family with an accuracy of +/-2.1% over the lifetime of the IC from room to hot temperature. The 2.5 μs response time enables overcurrent fault detection in safety-critical applications while the Reinforced Galvanic Isolation reduces the bill of materials. It works off of a single 5 V supply (ACS772) or 3.3V (ACS773型).

该ACS772是理想的汽车应用，如车载充电器，直流/直流转换器和逆变器控制以及工业应用，如电机控制，负载检测和管理和电源。雷竞技最新网址

This sensor is provided in an Allegro custom CB package offering a very small form footprint, lower ICC and higher accuracy over current sensor modules offered by competing solutions. The ACS772 has a 2.5μs response time, which is the fastest response time IC ever offered in the custom Allegro CB package.

Target Applications:

• OBC
• EV Charging Stations
• Inverters
• Power supplies
• Overcurrent fault protection
• Any high accuracy current sensing apps requiring >50A (continuous), 2.5μs response time AND high isolation.

• AEC-Q100 Grade 1 qualified
• Typical of 2.5 μs output response time
• 5 V supply operation
• Ultra-low power loss: 100 μΩ internal conductor resistance
• Reinforced galvanic isolation allows use in economical, high-side current sensing in high-voltage systems
• 4800 Vrms dielectric strength certified under UL60950-1
• 行业领先的噪声性能，通过专有的放大器和滤波器设计技术大大提高了带宽
• 集成屏蔽极大地减少了由于高dV/dt信号而从电流导体到管芯的电容耦合，并防止在高压侧应用中的偏移漂移雷竞技最新网址
• 通过在整个工作温度范围内对增益和偏置进行数字编程和补偿，大大改善了总输出误差
• Small package size, with easy mounting capability
• Monolithic Hall IC for high reliability
• Output voltage proportional to AC or DC currents
• Factory-trimmed for accuracy
• 极稳定的输出偏置电压