US91A

(US90A / US91A) 24V Hall IC Fan Driver

Melexis Microelectronic Systems

US91A 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 pack

US91A General 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. The open-drain output .

US91A Datasheet (335.99 KB)

US91A Datasheet Preview — Preview of US91A PDF

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Part number:

US91A

Manufacturer:

Melexis Microelectronic Systems

File Size:

335.99 KB

Description:

(us90a / us91a) 24v hall ic fan driver.

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US91A US90A US91A 24V Hall Fan Driver Melexis Microelectronic Systems

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US91A Features

US91A General Description

Datasheet Details

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