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