The MLX92213 micro power low-voltage latch hall effect sensor IC is fabricated in mixed signal CMOS technology.
It incorporates advanced Correlated Double Sampling (CDS) techniques to provice accurate and stable magnetic switching points. In order to save power, the internal timing logic alternates awake and sleep modes, thus significantly reducing the power consumption. The magnetic flux density is periodically evaluated against predefined thresholds. If the flux density is above/below the Bop/Brp thresholds, then the output changes it's state accordingly. During the sleep mode the output is latched in it's previous state. The design has been optimized for applications requiring extended operating lifetime in battery powered systems. The EN pin ads flexibility by enabling external control of the micro power period and duty cycle.
The push-pull output of the MLX92213 will be latched in low state in the presence of a sufficiently strong south magnetic field (B > Bop) facin gthe marked side of the package. The output will be latched in high state in the presence of a sufficiently strong north magnetic field (B < Brp).