Two-Coil Fan Driver - High Voltage (Tachometer Output)

The US90A / US91A is a one-chip solution for driving two-coil brushless DC cooling fans. Based on the advanced Melexis CMOS process, the IC contains a Hall-effect Sensor dynamic offset correction and low side output drivers. Frequency Generator or Rotation Detection is available. The open-drain output makes the connectivity with any external Interface such as hardware monitoring or Super I/O IC easier. By Melexis Company
US90 's PackagesUS90 's pdf datasheet
US90A
US91A




US90 Pinout will be updated soon..., now you can download the pdf datasheet to check the pinouts !
US90 Application circuits
US90 circuits
This is one application circuit of US90,If you need more circuits,please download US90's pdf datasheet.


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