ML4425 Datasheet (Micro Linear) - Sensorless BLDC Motor Controller

ML4425, Sensorless BLDC Motor Controller

The ML4425 PWM motor controller provides all of the functions necessary for starting and controlling the speed of delta or wye wound Brushless DC (BLDC) motors without Hall Effect sensors.

Back EMF voltage is sensed from the motor windings to determine the proper commutation phase sequence using a P

ML4425 Features

* s s s s Stand-alone operation Motor starts and stops with power to IC On-board start sequence: Align ® Ramp ® Set Speed Patented Back-EMF commutation technique provides jitterless torque for minimum “spin-up” time Onboard speed control loop PLL used for commutation provides noise immunity from PWM