Infineon introduces the PSOC™ 4 HV MS series of products, providing a one-chip solution for smart edge-sensor designs for automotive, integrating programmable analog, multi-sense converter, high voltage (12 V) operation, and an Arm® Cortex® CPU. It enables smart edge-sensors integrating analog front-ends with multi-sense converter featuring the most advanced capacitive sensing solution with the 5th generation CAPSENSE™, programmable analog blocks (12-bit SAR ADC, op-amps), digital blocks (PWMs, serial communication blocks), high voltage operation, and enabling automotive functional safety level of ASIL-B according to ISO 26262.

Key features​

  • 48 MHz Arm® Cortex®-M0+ CPU

  • Up to 128 KB flash

  • 16 KB SRAM, with ECC

  • Multi-sense converter integrating 5th generation CAPSENSE™ and MagSense

  • 12-bit, 1-Msps SAR ADC

  • ISO 26262 ASIL-B compliant

  • Integrated 12V LDO (42V tolerant)

  • Integrated LIN/CXPI transceiver

  • AutoPDL and CAPSENSE™ MW support

  • 125°C ambient temperature

  • DMA controller

Key benefits​

  • Robust capacitive-sensing performance with very high SNR enabling elegant automotive HMI

  • Safe smart sensor and HMI designs with integrated functional safety features

  • Connects directly to a 12 V battery supply and to the LIN/CXPI network

  • Total system solution (hardware, software, and collaterals)

Figure 1. PSOC™ 4 HV MS block diagram


Target applications​

  • PSOC™ 4 HV MS

    • Automotive body HMI (touch buttons/sliders/touchpads for steering wheels, door modules, and overhead modules)

    • Liquid level and quality sensing

    • PTC heaters

Use cases​

  • As several automotive HMI and body application MCUs: PSOC™ 4 HV MS is a mixed signal (MS) MCU with a 12-bit SAR ADC, 5th generation Multi-Sense Converter (MSC) block supporting capacitive sensing (CAPSENSE™), digital peripherals such as PWMs and serial communication interfaces along with a LIN/CXPIinterface with integrated PHY, and a high-voltage subsystem to operate directly off the 12 V car battery