PRESTO - US79 Page

US79 5V / 12V, Reverse-voltage protection, RFI Filter, Efficient CMOS and Power MOSFET Drivers allow 400mA without overheating, Zener Diode protected outputs, High Sensitivity for switching symmetry, Locked Rotor Shutdown and Auto-restart Fan Motor Driver IC

DATA-0192
Product Datasheet for the Melexis US79 Fan Motor Driver IC

Features

5V / 12V

Reverse-voltage protection

RFI Filter

Efficient CMOS and Power MOSFET Drivers allow 400mA without overheating

Zener Diode protected outputs

High Sensitivity for switching symmetry

Locked Rotor Shutdown and Auto-restart

The US79 is the most advanced Smart Fan Control Hall IC and is designed for 5V and 12V cooling commutation. The IC contains many features to allow survival in a harsh environment and was designed to eliminate all discrete components such as capacitors, resistors, transistors, diodes, PC board and associated labour.

The K rating guarantees proper operation up to an ambient temperature of 125degC. Hall IC circuitry and power FET output provide a low power dissipation cool chip.

Locked Rotor conditions are detected by the IC when there is no motion for one second and will shut off the motor drive for five seconds. Then, the IC will turn on the drive current for one second. This sequence continues indefinitely until the locked rotor condition is fixed, thereby prenting overheating.

Support documents for the US79

Below is the support information available for the US79 - select a link to download the relevant documentation.

DATA-0192 - Product Datasheet
Product Datasheet for the Melexis US79 Fan Motor Driver IC
Dated : 22 December 2005 ( Uploaded )
Relevant to : US79

News information for the US79

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