A1363 Datasheet | Allegro MicroSystems

FEATURES AND BENEFITS - Proprietary segmented linear interpolated temperature pensation (TC) technology provides a typical accuracy of 1% across the full operating temperature range - Customer-programmable, high resolution offset and sensitivity trim - Factory-programmed sensitivity and quiescent output voltage TC with extremely stable temperature performance - High sensitivity Hall element for maximum accuracy - Extremely low noise and high resolution achieved via proprietary Hall element and low noise amplifier circuits - 120 k Hz nominal bandwidth achieved via proprietary packaging and chopper stabilization techniques - Patented circuits suppress IC output spiking during fast current step inputs Continued on the next page… PACKAGE: 4-pin SIP (suffix KT) TN Leadform TH Leadform Not to scale Contact Allegro about legacy leadform options DESCRIPTION The Allegro™ A1363 programmable linear Hall-effect current sensor IC has been designed to achieve high accuracy and resolution without promising bandwidth. The goal is achieved through new proprietary linearly interpolated temperature pensation technology that is programmed at the Allegro factory and provides sensitivity and offset that are virtually flat across the full operating temperature range. Temperature pensation is done in the digital domain with integrated EEPROM technology, without sacrificing the analog signal path 120 k Hz bandwidth, making this device ideal for HEV inverter, DC-to-DC converter, and electric power steering (EPS) applications. This ratiometric Hall-effect sensor IC provides a voltage output that is proportional to the applied magnetic field. The customer can configure the sensitivity and quiescent (zero field) output voltage through programming on the VCC and output pins, to optimize performance in the end application. The quiescent output voltage is user-adjustable around 50% of the supply voltage, VCC , and the output sensitivity is adjustable within the range of 0.6 to 14 m V/G. The...