ML4411A
ML4411A is Sensorless Spindle Motor Controller manufactured by Micro Linear.
- Part of the ML4411 comparator family.
- Part of the ML4411 comparator family.
May 1997
ML4411- /ML4411A-
- Sensorless Spindle Motor Controller
GENERAL DESCRIPTION
The ML4411 provides plete mutation for delta or wye wound Brushless DC (BLDC) motors without the need for signals from Hall Effect Sensors. This IC senses the back EMF of the three motor windings (no neutral required) to determine the proper mutation phase angle using Phase Lock Loop techniques. This technique will mutate virtually any 3-phase BLDC motor and is insensitive to PWM noise and motor snubbing. The ML4411 is architecturally similar to the ML4410 but with improved braking and brown-out recovery circuitry.
Included in the ML4411 is the circuitry necessary for a Hard Disk Drive...
