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PMIC - Motor Drivers, Controllers

Image Part Number Description / PDF Quantity Rfq
EMC6D103-CK-TR

EMC6D103-CK-TR

Fluke Electronics

FAN CONTROL DEVICE

95000
EMC6D102-CK

EMC6D102-CK

Fluke Electronics

FAN CONTROL DEVICE

13792
EMC6D102-CK-TR

EMC6D102-CK-TR

Fluke Electronics

FAN CONTROL DEVICE

12500

PMIC - Motor Drivers, Controllers

1. Overview

Power Management ICs (PMICs) dedicated to motor drivers and controllers are specialized semiconductor devices that manage the operation of electric motors by regulating power delivery, speed, direction, and protection features. These components are critical in modern electronics for optimizing energy efficiency, ensuring precise motion control, and enhancing system reliability. They are widely used in robotics, automotive systems, industrial automation, and consumer electronics.

2. Main Types & Functional Classification

TypeFunctional FeaturesApplications
H-Bridge DriversBi-directional current flow control, PWM integrationDC motor direction control in robotics
Stepper Motor ControllersMicrostepping, current regulation, position control3D printers, CNC machines
Brushless DC (BLDC) ControllersCommutation logic, Hall sensor interfaceElectric vehicles, drones
Integrated FET DriversEmbedded MOSFETs, thermal shutdownPortable devices, power tools

3. Structure & Components

A typical PMIC for motor control consists of:

  • Physical Structure: Standard packages like QFN, TSSOP, or BGA for compact integration
  • Internal Modules:
    • Gate drivers for MOSFET/IGBT control
    • Current sensing amplifiers
    • Protection circuits (OCP, OTP, UVLO)
    • Power supply regulation units
  • Interfaces: PWM, SPI, I2C, or analog inputs for control signals

4. Key Technical Specifications

ParameterDescription & Importance
Operating Voltage RangeDetermines compatibility with power sources (e.g., 4.5V 40V for automotive)
Output Current CapacityDefines motor power handling (e.g., 1A 10A continuous)
Efficiency (Typical >90%)Minimizes power loss and thermal stress
Protection FeaturesIncludes overcurrent, thermal, and shoot-through protection
Control InterfaceSupports PWM, Hall sensors, or serial communication

5. Application Fields

  • Consumer Electronics: Drones, robotic vacuum cleaners, smart locks
  • Industrial: Servo motors, automated manufacturing arms
  • Automotive: Electric power steering, HVAC blower motors
  • Medical: Infusion pumps, diagnostic equipment

6. Key Manufacturers & Products

ManufacturerProduct ModelKey FeaturesApplication Example
TI (Texas Instruments)DRV88251.8A output, microstepping3D printer extruders
STMicroelectronicsL6470600mA, SPI controlIndustrial valves
ON SemiconductorLV87113-phase BLDC controllerElectric scooters
InfineonTLE9411212-channel H-bridgeAutomotive seat adjusters

7. Selection Guidelines

Key considerations include:

  • Match voltage/current ratings with motor specifications
  • Select control interface (PWM vs. serial) based on system design
  • Verify protection features for harsh environments
  • Optimize package size for space-constrained applications
  • Evaluate cost vs. integration level (standalone vs. system-on-chip)

8. Industry Trends

Emerging trends include:

  • Higher integration with embedded MOSFETs and sensors
  • Adoption of field-oriented control (FOC) for BLDC motors
  • Development of automotive-grade ICs with ASIL-D compliance
  • AI-driven predictive maintenance features
  • Wide bandgap semiconductor integration (GaN/SiC) for higher efficiency
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