Infineon integrates CAPSENSE™ into PSOC™ HV microcontrollers for smart sensors and actuators including advanced touch sensing applications

June 12, 2025 — Infineon Technologies AG (FSE: IFX / OTCQX: IFNNY) today announced the expansion of its PSOC™ 4 HV microcontroller (MCU) family, introducing a new series specifically designed for compact sensing and actuation applications. These high-voltage MCUs integrate advanced analog sensing and high-voltage functionality into a standard MCU architecture, enabling direct connections to automotive batteries and in-vehicle networks with

As functional safety continues to extend into entry-level automotive microcontroller applications, designers are increasingly seeking tightly integrated and space-efficient control units. Simultaneously, growing consumer expectations for smarter, sleeker in-car experiences are fueling demand for robust capacitive sensing solutions capable of operating reliably in harsh automotive environments.

To address these needs, Infineon is launching the PSOC™ 4 HVMS MCU series. These devices are tailHuman-Machine Interface (HMI) systems such as touch buttons, sliders, touchpads, steering wheel contact detection, smart door handles, passenger presence detection, window lifters, seat adjusters, and sunroof controls. Beyond HMI, the series also supports applications like interior and exterior lighting systems and Positive Temperature Coefficient (PTC) heaters for thermal management.

Built on the ARM® Cortex®-M0+ core, the PSOC 4 HVMS MCUs offer up to 128 KB of flash memory and 16 KB of SRAM, balancing performance with efficiency. To simplify development and minimize PCB footprint, these MCUs integrate LIN and CXPI transceivers as well as an LDO regulator, forming a pre-tested subsystem that can be powered directly from a vehicle battery.

For applications requiring precise capacitive sensing, the PSOC 4 HVMS series incorporates Infineon’s fifth-generation CAPSENSE™ technology, delivering improved signal-to-noise ratio (SNR), robust operation in the presence of high parasitic capa12-bit SAR ADC, up to two operational amplifiers, and low-power comparators.

Designed to meet ISO26262 ASIL-B requirements, the PSOC 4 HVMS devices maintain safe and reliable operation in environments reaching up to 125°C. Housed in compact QFN packages with wettable flanks, they offer both scalability and pin compatibility across different designs.

Infineon complements this hardware offering with a comprehensive software ecosystem. This includes the Auto Peripheral Driver Library (AutoPDL), optimized for ASIL compliance aCAPSENSE Middleware (CAPSENSE MW) ensures high-resolution, reliable touch sensing, while the SafeTLib safety library helps bolster overall system robustness.

To streamline the development process, engineers can leverage Infineon’s powerful ModusToolbox™ development platform for design, evaluation, and integration, enabling faster time-to-market and simplified workflows.