Brushless DC Motor Driver Chip - MS4933
Supports Space Vector Modulation (SVM)
Supports Sine Wave and Square Wave Solutions
Built-in Clock Generator
Built-in Error Amplifier for Torque Closed-Loop Control
Direct Duty Cycle Control
Square Wave 120° Sine Wave 180° Conduction
PLL Angle Detection (Hall Sensor)
Product Introduction
MS4933is a three-phase sinusoidal brushless DC motor (BLDC) or permanent magnet synchronousmotor (PMSM) controller. This chip processes Hall sensor signals, and the controller can achievePWMswitching by switching the three-phase converter. There are twoPWMmodes: sine wave mode and square wave mode.This chip has a sleep mode pinSDB. When this pin is grounded, the static power consumption is10uAwithin. It integrates overcurrent protection, short-circuit protection, overvoltage protection, and over-temperature protection toprotect the chip and motor from damage.
I. Features of Brushless DC Motor Driver Chip - MS4933:
Supports Space Vector Modulation (SVM)
Supports Sine Wave and Square Wave Solutions
Built-in Clock Generator
Built-in Error Amplifier for Torque Closed-Loop Control
Direct Duty Cycle Control
Square Wave 120° Sine Wave 180° Conduction
PLL Angle Detection (Hall Sensor)
Current Lead Phase Correction
Two Optional Dead Times
Synchronous Rectification
Overvoltage and Undervoltage Protection, Over-Temperature Protection (OTP), Three-Level Overcurrent Protection (OCP)
Adjustable OC Timer
Sleep Mode
II.Features of Brushless DC Motor Driver Chip - MS4933:
