The Allegro ACS75x family of current sensors provides economical and precise solutions for current sensing in industrial, automotive, commercial, and communications systems. The device package allows for easy implementation by the customer. Typical applications include motor control, load detection and management, power supplies, and overcurrent fault protection.
The device consists of a precision, low-offset linear Hall sensor circuit with a copper conduction path located near the die. Applied current flowing through this copper conduction path generates a magnetic field which is sensed by the integrated Hall IC and converted into a proportional voltage. Device accuracy is optimized through the close proximity of the magnetic signal to the Hall transducer. A precise, proportional voltage is provided by the low-offset, chopper stabilized BiCMOS Hall IC, which is programmed for accuracy at the factory.

Features and Benefits
• Monolithic Hall IC for high reliability
• Single +5 V supply
• 3 kVRMS isolation voltage between terminals 4/5 and pins 1/2/3
• Lead-free
• Automotive temperature range available
• End-of-line factory-trimmed for gain and offset
• Ultra-low power loss: 130 µΩ internal conductor resistance
• Ratiometric output from supply voltage
• Extremely stable output offset voltage
• Small package size, with easy mounting capability
• Output proportional to ac and dc currents

Applications
• Industrial systems
• Motor control
• Power conversion
• Battery monitors
• Automotive systems