Broadcom ACHS-719x Current Sensor ICs

Broadcom ACHS-719x Current Sensor ICs belong to the fully integrated Hall-Effect based isolated linear current sensor device family. These devices are designed for AC or DC current sensing in industrial, commercial, and communications systems. The ACHS-719x Current Sensor ICs consist of a precise and low-offset, linear Hall circuit with a copper conduction path located near the surface of the die. Applied current flowing through this copper conduction path generates a magnetic field that the differential Hall sensors convert into a proportional voltage. The Current Sensor ICs accuracy is optimized across the operating ambient temperature through the close proximity of the magnetic signal to the Hall sensors.

The ACHS-719x Current Sensor ICs feature 0.7mΩ (typical) internal conductor resistance, low-noise analog signal path, and extremely stable output offset voltage. These current sensor ICs operate at -40ºC to 110ºC temperature range and 5V single supply voltage. The ACHS-719x ICs performance is delivered in a compact and surface-mountable SO-8 package that meets worldwide regulatory safety standards. Typical applications include eBikes, motor phase and rail current sensing, solar inverters, chargers and converters, and switching power supplies.

Features

Output voltage proportional to AC or DC currents
Ratiometric output from the supply voltage
5V single-supply operation
0.7mΩ typical internal conductor resistance
±10A to ±50A sensing current range
40mV/A to 185mV/A output sensitivity range
Low-noise analog signal path
Extremely stable output offset voltage
Device bandwidth is set via the new FILTER pin:
- 80kHz typical bandwidth with 1nF filter capacitor