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
□ 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 Eliminate 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