BLDC Motor Driver
MS39531
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Recommend for new design
Three-Phase Sensorless Motor Driver
Overview
MS39531 is a sine-driven three-phase sensorless DC motor driver, featuring minimal vibration and high efficiency. The driver integrates built-in basic closed-loop speed control, allowing custom motor speed profiles for specific applications, and can operate without a microcontroller.
Additionally, the MS39531 provides comprehensive protection functions, including:Lock detection with auto-restart、Undervoltage lockout (UVLO)、Overcurrent protection (OCP)、Thermal shutdown (TSD)
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Key Features
- ⚫Closed-loop speed control
- ⚫Speed profile configurable via EEPROM
- ⚫I²C serial interface
- ⚫Sine-wave modulation (low noise & vibration)
- ⚫Sensorless operation (Hall sensor not required)
- ⚫Low RDS(ON) power MOSFETs – 3A high-current output
- ⚫Minimal external components
- ⚫PWM speed control input
- ⚫FG (Frequency Generator) speed output
- ⚫RD (Rotor Detection) lock output
- ⚫Lock detection
- ⚫Soft-start
- ⚫Standby mode
- ⚫Short-circuit/overload protection
