[Melexis]

Description
The US79KUA is the most advanced Smart Fan Control Hall IC. It is designed for 5V and 12V cooling commutation. The chip contains many features to allow survival in a harsh environment. The IC was designed to eliminate all discrete components such as capacitors, resistors, transistors, diodes, PC board and associated labor, replacing US$0.25 to US$0.35 in direct cost.

Features and Benefits
    ESD Tolerance IC>7,000V
    ESD Tolerance of Fan >15,000V
    Built-in Reverse Voltage Protection
    Built-in RFI Filter
    Power Efficient CMOS and Power MOSFET Drivers allow 400mA without overheating
    Built-in Zener Diodes Protect Outputs
    Eliminates all Fan Components
    Eliminate PC Board
    5V and 12V Operation
    High Sensitivity for switching symmetry
    Locked Rotor Shutdown

Applications
    Fan Sizes up to 90mm
    Current Range up to 400mA