Analogue, Mixed Signal, LSI


Fan motor drivers

9 November 2016 Analogue, Mixed Signal, LSI

ON Semiconductor has three new devices for driving 3-phase BLDC motors via 180° sinusoidal waveforms. Designed for use in cooling fans, the LV8811/3/4 have voltage ranges of 3,6 - 16 V, 6 - 16 V, and 3,6 - 16 V respectively. These highly integrated, software-less drivers reduce acoustic noise and vibration, and enable deployment of energy efficient motor controls. Controllable by a single Hall sensor, motor speed can be set by either a PWM signal or a DC voltage, and lead angle can easily be adjusted. The chips incorporate over-current, over-voltage, under-voltage and over-temperature protection. Also included are locked rotor protection and auto-recovery mechanisms. Soft startup and shutdown functionality ensures that ongoing operational stability is maintained.

Future Electronics, +27 (0)21 421 8292, marian.ledgerwood@futureelectronics.com, www.futureelectronics.com



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