ACS758LCB-050B-PFF-T.pdf

The Allegro™ ACS758 family of current sensor ICs provides  economical and precise solutions for AC or DC current sensing.  Typical applications include motor control, load detection and  management, power supply and DC-to-DC converter control,  inverter control, and overcurrent fault detection. The device consists of a precision, low-offset linear Hall  circuit with a copper conduction path located near the die.  Applied current flowing through this copper conduction path  generates a magnetic field which the Hall IC converts into a  proportional voltage. Device accuracy is optimized through the  close proximity of the magnetic signal to the Hall transducer.  A precise, proportional output voltage is provided by the  low-offset, chopper-stabilized BiCMOS Hall IC, which is  programmed for accuracy at the factory.

Industry-leading noise performance through proprietary  amplifier and filter design techniques 

• Integrated shield greatly reduces capacitive coupling  from current conductor to die due to high dV/dt signals,  and prevents offset drift in high-side, high-voltage  applications 

 • Total output error improvement through gain and offset  trim over temperature 

• Small package size, with easy mounting capability

• Monolithic Hall IC for high reliability 

• Ultralow power loss:100 μΩ internal conductor  resistance 

• Galvanic isolation allows use in economical, high-side  current sensing in high-voltage systems