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US91A, US90A Datasheet - Melexis Microelectronic Systems

US91A (US90A / US91A) 24V Hall IC Fan Driver

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 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

US90A_MelexisMicroelectronicSystems.pdf

This datasheet PDF includes multiple part numbers: US91A, US90A. Please refer to the document for exact specifications by model.
US91A Datasheet Preview Page 2 US91A Datasheet Preview Page 3

Datasheet Details

Part number:

US91A, US90A

Manufacturer:

Melexis Microelectronic Systems

File Size:

335.99 KB

Description:

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

Note:

This datasheet PDF includes multiple part numbers: US91A, US90A.
Please refer to the document for exact specifications by model.

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TAGS

US91A US90A US90A US91A 24V Hall Fan Driver Melexis Microelectronic Systems

US91A Distributor