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MS39747TEA
phone 189 2646 8515
Three-Phase Sensorless Motor Driver IC
Brand: RM Semiconductor
Operating Voltage: 4-38V, Typical Voltage 24V
Continuous Current: 2A, Peak Current Up to 3A
Key Features:
Quiet Operation
Sensorless Sinusoidal Wave Startup
Low Rdson MOSFET (High-Side + Low-Side: 360mΩ)
Rich Speed Curves Configurable via EEPROM
Multiple Startup Modes & Adjustable Startup Parameters
Low Power Consumption Mode
Comprehensive Protection Functions:
Overvoltage, Overcurrent, Overtemperature Protection
Undervoltage Lockout (UVLO)
Lock Detection: Configurable Restart Times After Stall
Applications: Household Fans, Automotive Fans, Automotive Seat Fans
Consult Now Download Sheet
Application Scenarios
落地扇 落地扇
落地扇
汽车座椅散热风扇 汽车座椅散热风扇
汽车座椅散热风扇
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Product Description

Introduction to MS39747TEA

The MS39747TEA is a three-phase motor driver IC integrated with sensorless sinusoidal drive. When applied to most fan-driven scenarios, it can minimize fan vibration. The sensorless control eliminates the need for Hall sensors in fan applications.


The MS39747TEA incorporates a flexible closed-loop speed control system internally. Its EEPROM allows customization of fan speed curves tailored to specific applications. Once programmed, the IC can operate independently without relying on a microprocessor.


Internal Block Diagram：


Chip Applications:

  • Household Fan Applications

  • Automotive Fan Applications

  • Automotive Seat Fans



Product Features

Electrical Parameters & Key Features：


  • Operating Voltage: 4-38V, Typical Voltage 24V

  • Continuous Current: 2A, Peak Current Up to 3A

  • Quiet Operation

    -Sensorless Sinusoidal Wave Startup

  • Low Rdson MOSFET

    -High-Side + Low-Side: 360mΩ

  • Rich Speed Curves Configurable via EEPROM

  • Multiple Startup Modes & Adjustable Startup Parameters

  • Low Power Consumption Mode

  • Comprehensive Protection Functions

    -Overvoltage, Overcurrent, Overtemperature Protection

    -Undervoltage Lockout (UVLO)

    -Lock Detection: Configurable Restart Times After Stall


Application Scenarios
落地扇
落地扇
汽车座椅散热风扇
汽车座椅散热风扇
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