Sl621 is one of the programmable linear Hall chips of Xinggong microelectronics. With its wide adjustable sensitivity range, easy programming, cost-effective for the majority of customers recognized.
Sl621 is currently available in standard to92 in-line package. After programming and calibration, it can measure the magnetic field perpendicular to the IC plane and provide a voltage output proportional to the applied magnetic field. The user can flexibly configure the sensitivity, static (zero field) output voltage, reference voltage and temperature compensation coefficient with the viout pin as the two-way communication port in the power on state. In order to ensure the stability of IC in harsh electromagnet environment, the configuration parameters are solidified into the built-in memory. Its unique multi-stage temperature compensation coefficient is convenient for customers to do system temperature compensation to remove the temperature effect of magnetic core or position. Typical application circuit is shown in the left figure.