Two-coil fan driver (tachometer output)
US62 Melexis
The US62 is a one-chip solution for driving two-coil brushless DC (BLDC) cooling fans.
Top 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 signal protected output
- 2-coil fan driver with FG output in 4-pin VK package RoHS compliant
Two-coil fan driver (tachometer output) - US62
Product description
Based on the advanced Melexis complementary metal-oxide semiconductor (CMOS) process, the IC contains a Hall-effect sensor, dynamic offset correction and low side output drivers.
The Frequency Generator (FG) open-drain output makes the connectivity easier 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.
Features and benefits
-
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 signal protected output
- 2-coil fan driver with FG output in 4-pin VK package RoHS compliant
