DatasheetsPDF.com

ML4411A

Micro Linear
Part Number ML4411A
Manufacturer Micro Linear
Description Sensorless Spindle Motor Controller
Published Mar 15, 2018
Detailed Description May 1997 ML4411*/ML4411A** Sensorless Spindle Motor Controller GENERAL DESCRIPTION The ML4411 provides complete commu...
Datasheet PDF File ML4411A PDF File

ML4411A
ML4411A

Overview
May 1997 ML4411*/ML4411A** Sensorless Spindle Motor Controller GENERAL DESCRIPTION The ML4411 provides complete commutation 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 commutation phase angle using Phase Lock Loop techniques.
This technique will commutate 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 microcontroller driven control loop.
The ML4411 controls motor current with either a constant off-time PWM or linear current control driven by the microcontroller.
Braking and Power Fail are also included in the ML4411.
The timing of the start-up sequencing is determined by the micro, allowing the system to ...


Similar Datasheet


Since 2006. D4U Semicon,
Electronic Components Datasheet Search Site. (Privacy Policy & Contact)