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

Melexis Microelectronic Systems

Datasheet Details

The US90A/91A is a one-chip solution for driving two-coil brushless DC cooling fans.

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. US90A US90A US90A US91A US91A US91A Temperature Code E (-40°.

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