ACS758LCB-100B-PFF-T 100A SENSOR CURRENT HALL IC Chip AC/DC type

Features and Benefits

▪ 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

▪ Ultra-low power loss: 100 μΩ internal conductor resistance

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

▪ 3.0 to 5.5 V, single supply operation

▪ 120 kHz typical bandwidth

▪ 3 μs output rise time in response to step input current

▪ Output voltage proportional to AC or DC currents

▪ Factory-trimmed for accuracy

▪ Extremely stable output offset voltage

▪ Nearly zero magnetic hysteresis

Description

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.