PRESTO - US891 Page

US891 18V, TO-92 package, Rotation Detection output, 1200mA peak output current, Low startup voltage, High sensitivity Hall sensor, Locked rotor protection with auto-start, Power efficient CMOS and power MOSFETs, Built-in output protection clamping diode Fan Motor Driver IC

DATA-0524
Datasheet for the Melexis Semiconductors US890 and US891 Fan Motor Driver ICs

Features

18V

TO-92 package

Rotation Detection output

1200mA peak output current

Low startup voltage

High sensitivity Hall sensor

Locked rotor protection with auto-start

Power efficient CMOS and power MOSFETs

Built-in output protection clamping diode

The US891 is a one-chip solution for driving two-coil brushless DC motors and fans.

Based on the advanced Melexis CMOS process, the IC contains a Hall-effect sensor, dynamic offset correction and powerful output drivers with 1200mA peak output current capability.

Specially designed for driving large fans, the device is optimized for low start-up voltage.

The Rotation Detection open-drain output makes easier the connectivity with any external interface such as hardware monitoring or Super I/O IC.

These features are combined with the Melexis patented no-VDD design to fit the IC in a small 4-pin VK package.

Support documents for the US891

Below is the support information available for the US891 - select a link to download the relevant documentation.

DATA-0524 - Product Datasheet
Datasheet for the Melexis Semiconductors US890 and US891 Fan Motor Driver ICs
Dated : 01 December 2011 ( Uploaded )
Relevant to : US890 / US891

News information for the US891

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