PMIC - Motor Drivers, Controllers

Part Number	Description / PDF	Quantity
LS8297CT LSI/CSI	STEPPER MOTOR CONTROLLER	1487
LS8297 LSI/CSI	STEPPER MOTOR CONTROLLER	3000
LS7290 LSI/CSI	STEPPER MOTOR CONTROLLER	600
LS8397-TS LSI/CSI	STEPPER MOTOR CONTROLLER	880
LS8292 LSI/CSI	MICRO-STEPPER MOTOR CONTROLLER	450
LS7262C-TS LSI/CSI	IC MOTOR DRIVER BLDC 28V 20TSSOP	1050
LS8293-S LSI/CSI	MICRO-STEPPER MOTOR CONTROLLER	850
LS7561F-S LSI/CSI	IC MOTOR DRIVER BLDC 20V 28SOIC	1800
LS7362C-S LSI/CSI	BLDC MOTOR COMMUTATOR/CONTROLLER	50
LS8297-S LSI/CSI	STEPPER MOTOR CONTROLLER	1300
LS8297CT-S LSI/CSI	STEPPER MOTOR CONTROLLER	1129
LS8397 LSI/CSI	STEPPER MOTOR CONTROLLER	350
LS7262C-S LSI/CSI	IC MOTOR DRIVER BLDC 28V 20SOIC	375
LS7560F-TS LSI/CSI	BLDC MOTOR CONTROLLER	150
LS8397-S LSI/CSI	STEPPER MOTOR CONTROLLER	850
LS8297-TS LSI/CSI	STEPPER MOTOR CONTROLLER	950
LS8292-S LSI/CSI	MICRO-STEPPER MOTOR CONTROLLER	2050
LS7262C LSI/CSI	IC MOTOR DRIVER BLDC 28V 20DIP	320
LS8293 LSI/CSI	MICRO-STEPPER MOTOR CONTROLLER	20
LS8297CT-TS LSI/CSI	STEPPER MOTOR CONTROLLER	950

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

Type	Functional Features	Applications
H-Bridge Drivers	Bi-directional current flow control, PWM integration	DC motor direction control in robotics
Stepper Motor Controllers	Microstepping, current regulation, position control	3D printers, CNC machines
Brushless DC (BLDC) Controllers	Commutation logic, Hall sensor interface	Electric vehicles, drones
Integrated FET Drivers	Embedded MOSFETs, thermal shutdown	Portable 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

Parameter	Description & Importance
Operating Voltage Range	Determines compatibility with power sources (e.g., 4.5V 40V for automotive)
Output Current Capacity	Defines motor power handling (e.g., 1A 10A continuous)
Efficiency (Typical >90%)	Minimizes power loss and thermal stress
Protection Features	Includes overcurrent, thermal, and shoot-through protection
Control Interface	Supports 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

Manufacturer	Product Model	Key Features	Application Example
TI (Texas Instruments)	DRV8825	1.8A output, microstepping	3D printer extruders
STMicroelectronics	L6470	600mA, SPI control	Industrial valves
ON Semiconductor	LV8711	3-phase BLDC controller	Electric scooters
Infineon	TLE94112	12-channel H-bridge	Automotive 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