ATS675LSE

ATS675LSE Self-Calibrating TPOS Speed Sensor Optimized for Automotive Cam Sensing Applications Features and Benefits ▪ Chopper stabilized; optimized for automotive cam sensing applications ▪ Optimized absolute timing accuracy step size through gradual transition from TPOS to Running Mode ▪ High immunity to signal anomalies resulting from magnetic overshoot and peak-to-peak field variation ▪ Tight timing accuracy over full operating temperature range ▪ True zero-speed operation ▪ Automatic Gain Control circuitry for air gap independent switchpoints ▪ Operation at supply voltages down to 3.3 V ▪ Digital output representing target profile ▪ Undervoltage lockout (UVLO) ▪ Patented Hall IC-magnet system ▪ Increased output fall time for improved radiated emissions performance Package: 4-pin SIP module (suffix SE) Not to scale 1 2 34 Description The ATS675 is the next generation of the Allegro® True Power-On State (TPOS) sensor family, offering improved accuracy compared to prior generations, gradual TPOS to Running Mode adjustment for accuracy-shift reduction, and longer output fall time for improved radiated emissions performance. The ATS675 provides absolute zero-speed performance and TPOS information. The sensor incorporates a single-element Hall IC with an optimized custom magnetic circuit that switches in response to magnetic signals created by a ferromagnetic target. The IC contains a sophisticated digital circuit designed to eliminate the detrimental effects of magnet and s...