Munich, Germany - With the introduction of the PSoC 4 High Voltage Precision Analog (HVPA)-144K microcontroller, Infineon Technologies AG (FSE: IFX / OTCQX: IFNNY) addresses the automotive battery management sector by integrating high-precision analog and high-voltage subsystems on a single chip.

It provides a fully integrated embedded system for monitoring and managing automotive 12 V lead-acid batteries, which is critical for the 12 V power supply of vehicles' electrical systems. The new microcontroller is ISO26262 compliant, enabling compact and safe intelligent battery sensing and battery management in modern vehicles.

The PSoC 4 HVPA-144K's dual high-resolution sigma-delta ADCs, together with four digital filtering channels, enable accurate measurement of the battery's state-of-charge (SoC) and state-of-health (SoH) by measuring key parameters such as voltage, current, and temperature with an accuracy of up to +/-0.1 percent. The device features two programmable gain amplifiers (PGAs) with automatic gain control, allowing fully autonomous control of the analog front end without software intervention. The use of shunt-based current sensing for batteries provides a higher accuracy than conventional Hall sensors.

An integrated 12 V LDO (42 V tolerant) allows the device to be supplied directly from the 12 V lead-acid battery without the need for an external power supply. An integrated transceiver allows direct communication with the LIN bus. The product meets the functional safety requirements of ASIL-C according to ISO26262.

The Arm Cortex-M0+ MCU on which the PSoC 4 HVPA-144K is based operates at up to 48 MHz with up to 128 KB of code flash, 8 KB of data flash and 8 KB of SRAM, all with ECC. The PSoC 4 HVPA-144K also includes digital peripherals such as four timers/counters/PWMs and a serial communication block that can be configured as an I2C/SPI/UART.

The PSoC 4 HVPA-144K is supported by automotive-quality software. Infineon's Automotive Peripheral Driver Library (AutoPDL) and Safety Library (SafeTlib) are developed according to the standard automotive software development process. They are both A-SPICE compliant, following the MISRA 2012 AMD1 and CERT C, and ISO26262 compliant.

With the introduction of the PSoC 4 HVPA-144K, Infineon is laying the foundation to expand its PSoC microcontroller portfolio to include Li-ion battery management systems for EVs. The portfolio will soon include several products for monitoring and managing high voltage (400 V and above) and low voltage (12 V/48 V) batteries, further facilitating future EV adoption.

Availability

The PSoC 4 HVPA-144K is now available in a compact 32-QFN (6x6 mm-2) package with up to 9 GPIOs. For an easy start of development, an evaluation board is also available. Further information can be found at www.infineon.com/psochvpa144k.

About Infineon

Infineon Technologies AG is a global semiconductor leader in power systems and IoT. Infineon drives decarbonization and digitalization with its products and solutions. The company has around 58,600 employees worldwide and generated revenue of about EUR16.3 billion in the 2023 fiscal year (ending 30 September). Infineon is listed on the Frankfurt Stock Exchange (ticker symbol: IFX) and in the USA on the OTCQX International over-the-counter market (ticker symbol: IFNNY).

Contact:

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