US91A - 24V Hall IC Fan Driver

This page provides the datasheet information for the US91A, a member of the US90A 24V Hall IC Fan Driver family.

Product Overview

Melexis Microelectronic Systems

Part number	US91A
Manufacturer	Melexis Microelectronic Systems
File Size	335.99 KB
Description	24V Hall IC Fan Driver
Datasheet	US91A Datasheet
Additional preview pages of the US91A datasheet.

The US90A/91A 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.

Low cost High sensitivity Hall Sensor Locked rotor protection and auto-restart Power-efficient CMOS and power MOSFETs Built-in output protection clamping diode Integrated tachometer (US90A) or alarm (US91A) signal output 2-coil fan driver with FG/RD output in 4-pin VK / VA and 8-pin narrow SOIC packages (all RoHS Compliant).

Other Datasheets by Melexis Microelectronic Systems

Published: Jun 5, 2010 |