ML4411 - Sensorless Spindle Motor Controller

Product Overview

Micro Linear

Part number	ML4411
Manufacturer	Micro Linear
File Size	296.51 KB
Description	Sensorless Spindle Motor Controller
Datasheet	ML4411 Datasheet
Additional preview pages of the ML4411 datasheet.

The ML4411 provides complete commutation for delta or wye wound Brushless DC (BLDC) motors without the need for signals from Hall Effect Sensors.

s s s s s s s Back-EMF commutation provides maximum torque for minimum “spin-up” time for spindle motors Accurate, jitter-free phase locked motor speed feedback output Linear or PWM motor current control Easy microcontroller interface for optimized start-up sequencing and speed control Power fail detect circuit with delayed braking Drives external N-channel FETs and P-channel FETs Back-EMF comparator detects motor rotation after power fail for fast re-lock after brownout.
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Published: May 7, 2005 |