Two-coil fan driver (alarm output)
US63 Melexis
The US63 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.
The rotation detection (RD) open-drain output makes easier the connectivity with any external interface such as hardware monitoring or super I/O IC. These features are combined with the Melexis patented no-VDD design to fit the IC in a small 4-pin VK package.
Top features
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Low cost
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High sensitivity Hall sensor
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Locked rotor protection and auto-restart
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Power-efficient CMOS and power MOSFETs
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Built-in output protection clamping diode
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Integrated alarm signal protected output
- 2-coil fan driver with RD output in 4-pin VK package RoHS compliant
Features and benefits
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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 alarm signal protected output
- 2-coil fan driver with RD output in 4-pin VK package RoHS compliant
Documents and tools
EU RoHS compliance declaration
Material declaration
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MLX90287
