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US90A - 24V Hall IC Fan Driver

Description

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.

Features

  • 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).

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Datasheet preview – US90A

Datasheet Details

Part number US90A
Manufacturer Melexis Microelectronic Systems
File Size 335.99 KB
Description 24V Hall IC Fan Driver
Datasheet download datasheet US90A Datasheet
Additional preview pages of the US90A datasheet.

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Full PDF Text Transcription

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US90A / US91A 24V Hall IC Fan Driver Features and Benefits 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) Application Examples 12V/24V fans Peak current up to 500mA Ordering Information www.DataSheet4U.com Part No.
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