Infineon Technologies has announced that it is expanding its Motix 32-bit motor control SoC (system-on-chip) family with solutions for brushed (BDC) and brushless (BLDC) motor applications. The TLE994x and TLE995x have been tailored for small- to medium-sized automotive motors, covering functions such as battery cooling in electric vehicles, and comfort features such as seat adjustment. The new SoCs combine advanced integration with functional safety and cybersecurity-relevant features.
The three-phase TLE995x (BLDC) has been designed for pumps and fans in thermal management systems; 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 functionality with minimal footprint. The latest LIN-based devices feature an Arm Cortex-M23 core running up to 40MHz, with integrated flash and RAM. Field-oriented control (FOC) capability ensures efficient and precise motor operation. Compared with 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.
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