Infineon Technologies is expanding its MOTIX 32-bit motor control SoC (System-on-chip) family with new solutions for both brushed (BDC) and brushless (BLDC) motor applications: TLE994x and TLE995x. The new products are tailored for small- to medium-sized automotive motors, ranging from functions such as battery cooling in electric vehicles to comfort features such as seat adjustment. The number of such motors continues to grow in modern, especially electric, vehicles and they are used in an increasing number of safety-critical applications.
Therefore, car manufacturers require reliable, compact and cost-effective solutions that
integrate multiple functions. Based on Infineon’s extensive experience in motor control, the
new SoCs combine advanced integration with functional safety and cybersecurity-relevant
features.
The three-phase TLE995x (BLDC) is ideal for pumps and fans in thermal management
systems, while the two-phase TLE994x (BDC) targets comfort functions such as electric
seats and power windows. Both devices integrate advanced diagnostic and protection
functions that support reliable motor operation.
By combining a gate driver, microcontroller, communication interface, and power supply in a single chip, Infineon’s SoCs offer exceptional functionality with minimal footprint. The new LIN-based devices feature an Arm Cortex-M23 core running up to 40 MHz, with
integrated flash and RAM. Field-Oriented Control (FOC) capability ensures efficient and
precise motor operation. Compared to the established TLE986x/7x family, the TLE994x/5x
offers enhanced peripherals, flexible PWM generation via the CCU7, and automatic LIN
message handling to reduce CPU load. All devices comply with ISO 26262 (ASIL B) for
functional safety. Additionally, the integrated Arm TrustZone technology provides a
foundation for improved system security.
