DESCRIPTION

· The Allegro™ A1366 is a factory-programmable linear Hall-effect current sensor IC designed for high accuracy and resolution.

· It features proprietary linearly interpolated temperature compensation technology, ensuring flat sensitivity and offset across the full operating temperature range.

· The device is ideal for current sensing applications, including HEV inverters, DC-to-DC converters, and electric power steering (EPS) systems.

· It provides a voltage output proportional to the applied magnetic field, with a typical accuracy of less than ±1% over temperature.

· The sensor IC incorporates a highly sensitive Hall element, a low noise amplifier, and a high bandwidth dynamic offset cancellation technique.

· It includes built-in broken ground wire detection for high reliability in automotive applications.

FEATURES

· Factory-programmed sensitivity and quiescent output voltage with high resolution.

· Proprietary segmented linear interpolated temperature compensation (TC) technology ensures 1% accuracy across the full operating temperature range.

· Extremely low noise and high resolution achieved through proprietary Hall element and low noise amplifier circuits.

· 120 kHz nominal bandwidth enabled by proprietary packaging and chopper stabilization techniques.

· Patented circuits suppress IC output spiking during fast current step inputs.

· Open circuit detection on the ground pin (broken wire) and undervoltage lockout for VCC below specification.

· Ratiometric sensitivity and quiescent voltage output with precise recoverability after temperature cycling.

APPLICATIONS

· HEV inverters.

· DC-to-DC converters.

· Electric power steering (EPS) systems.