ML4428中文资料Sensorless Smart-Start™ BLDC PWM Motor Controller数据手册Micro Linear规格书

描述 Description

GENERAL DESCRIPTION
The ML4428 motor controller provides all of the functions necessary for starting and controlling the speed of delta or wye-wound Brushless DC (BLDC) Motors without the need for Hall Effect sensors.features
■ Stand-alone operation with forward and reverse
■ On-board start sequence: Sense Position → Drive → Accelerate →  Set Speed
■ No backward movement at start-up
■ Patented back-EMF commutation technique
■ Simple variable speed control with on-board reference
■ Single external resistor sets all critical currents
■ PWM control for maximum efficiency or linear control for minimum noise
■ 12V operation provides direct FET drive for 12V motors
■ Drives high voltage motors with high side FET drivers
■ Guaranteed no shoot-through when driving external FET gates directly

特性 Features

■ Stand-alone operation with forward and reverse
■ On-board start sequence: Sense Position → Drive → Accelerate →  Set Speed
■ No backward movement at start-up
■ Patented back-EMF commutation technique
■ Simple variable speed control with on-board reference
■ Single external resistor sets all critical currents
■ PWM control for maximum efficiency or linear control for minimum noise
■ 12V operation provides direct FET drive for 12V motors
■ Drives high voltage motors with high side FET drivers
■ Guaranteed no shoot-through when driving external FET gates directly