Infineon TLE9954QSW40-33 MOTIX™ Motor Control SoC/SIP

Introduction

The Infineon TLE9954QSW40-33 is an automotive-focused motor-control system-on-chip/system-in-package solution designed for efficient brushless DC (BLDC) motor applications. It integrates control, power switching, sensing, communication, and safety-related functions into a compact device for motor systems up to 150 W.

Part Description

The TLE9954QSW40-33 combines a 32-bit Arm Cortex-M23 microcontroller with six integrated OptiMOS™ 7 MOSFETs. This integration supports direct control of a three-phase BLDC motor bridge while reducing the number of external components required in a motor-control design.

Key integrated functions include:

• 32-bit Arm Cortex-M23 microcontroller
• Six integrated OptiMOS™ 7 MOSFETs
• Three-phase bridge driver for BLDC motors
• Current-sense amplifier for motor-current monitoring
• 12-bit analog-to-digital converter
• LIN communication interface
• Functional safety features for automotive-oriented designs
• Support for motor-control applications up to 150 W

Its combination of processing, power devices, analog sensing, and vehicle-network connectivity makes it suitable for compact intelligent actuators and distributed motor-control nodes.

Applications

Potential applications for the TLE9954QSW40-33 include:

• Automotive BLDC motor controllers
• HVAC blower and flap actuators
• Seat-positioning and seat-adjustment motors
• Power window and sunroof actuators
• Electric pumps
• Cooling fans
• Active grille shutters
• Smart valve and damper actuators
• Small electric auxiliary drives
• Body electronics motor-control modules

Industries

Possible industries for this component include:

• Automotive manufacturing
• Electric vehicle and hybrid vehicle systems
• Automotive Tier 1 suppliers
• Transportation electronics
• Industrial automation
• Smart actuator manufacturing
• Thermal-management equipment
• Mechatronics and motion-control systems

Usage Ideas

1. LIN-Controlled Cooling Fan Module
   Build a compact automotive cooling-fan controller that receives speed commands through LIN and regulates a three-phase BLDC fan motor.

2. Smart Seat Adjustment Actuator
   Develop a seat-positioning actuator with BLDC motor control, current sensing for obstruction detection, and LIN communication with the vehicle body controller.

3. Electronic Airflow Damper System
   Create an HVAC damper actuator that uses the integrated MCU and three-phase bridge to accurately position airflow-control vanes in a vehicle climate-control system.

Conclusion

The Infineon TLE9954QSW40-33 MOTIX™ Motor Control SoC/SIP is a highly integrated solution for automotive BLDC motor applications. By combining an Arm Cortex-M23 MCU, MOSFET power stage, motor driver, sensing circuitry, ADC, LIN interface, and safety-related features, it can help designers create compact, efficient, and connected motor-control systems for applications up to 150 W.