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A1363LLUTR-2-T Datasheet(PDF) 1 Page - Allegro MicroSystems |
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A1363LLUTR-2-T Datasheet(HTML) 1 Page - Allegro MicroSystems |
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1 / 29 page  The Allegro™ A1363 programmable linear Hall-effect current sensor IC has been designed to achieve high accuracy and resolution without compromising bandwidth. The goal is achieved through new proprietary linearly interpolated temperature compensation technology that is programmed at the Allegro factory and provides sensitivity and offset that are virtually flat across the full operating temperature range. Temperature compensation is done in the digital domain with integratedEEPROMtechnology, withoutsacrificingtheanalog signal path 120 kHz bandwidth, making this device ideal for HEVinverter,DC-to-DCconverter,andelectricpowersteering (EPS) applications. ThisratiometricHall-effectsensorICprovidesavoltageoutput thatisproportionaltotheappliedmagneticfield. Thecustomer 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 mV/G. ThesensorICincorporatesahighlysensitiveHallelementwith aBiCMOSinterfaceintegratedcircuitthatemploysalownoise small-signal high-gain amplifier, a clamped, low-impedance output stage, and a proprietary, high bandwidth dynamic offset • Proprietary segmented linear interpolated temperature compensation (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 kHz nominal bandwidth achieved via proprietary packaging and chopper stabilization techniques • Patented circuits suppress IC output spiking during fast current step inputs Low Noise, High Precision, Programmable Linear Hall Effect Sensor IC With Advanced Temperature Compensation and High Bandwidth (120 kHz) Analog Output Functional Block Diagram Not to scale A1363LU V+ EEPROM and Control Logic VCC (Programming) GND VOUT (Programming) Signal Recovery To all subcircuits CBYPASS CL Temperature Sensor Offset Control Sensitivity Control Programming Control Continued on the next page… Continued on the next page… Package: 8-pin TSSOP (suffix LU) A1363LU-DS, Rev. 4 FEATURES AND BENEFITS DESCRIPTION |
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