Infineon Technologies PSoC™ 4 HV PA (High Voltage Precision Analog) MCUs

Infineon Technologies PSoC™ 4 HV PA (High Voltage Precision Analog) MCUs are fully integrated programmable embedded systems for battery monitoring and management. The AEC-Q100-qualified devices feature an Arm® Cortex® M0+ processor and programmable/reconfigurable analog/digital blocks. The 32-QFN packaged (with wettable flanks) PSoC™ 4 HV PA microcontrollers operate within a -40°C to +125°C temperature range and offer 128KByte code flash with ECC protection.


  • Automotive Electronics Council (AEC)-Q100 qualified
  • Designed for battery monitoring and management
  • 32-bit MCU subsystem
    • 24MHz or 48MHz Arm Cortex M0+ CPU with DMA controller
    • Up to 128KB of code flash with ECC, 144KB version available
    • Up to 8KB of data flash with ECC
    • Up to 8KB of SRAM with ECC
    • 1KB of Supervisory Flash (SFlash) is available for storing constants
  • Precision analog
    • 2x precision ΔΣ ADCs (16-20+ bits)
    • Current Channel with automatic gain
    • Voltage Channel with HV input divider
    • Temperature and Diagnostic Channels
    • Supports both internal and external temperature sensing
    • Digital filtering, accumulators, and threshold comparisons on all channels
  • Functional safety for ASIL-B
    • Developed according to the development process of ISO 26262 for ASIL-B as a Safety Element out of Context
    • Memory Protection Unit (MPU)
    • Window Watchdog Timer (WDT) with Challenge-Response functionality
    • Supply monitoring detects overvoltage and brownout events for 3.3V and 1.8V supplies
    • Hardware error correction (SECDED ECC) on all safety-critical memories (SRAM, flash)
    • Analog diagnostics (backup reference voltage, redundancy in voltage, current, and temperature measurement paths)
  • High-voltage subsystem
    • Operates directly off 12V/24V battery (tolerates up to 42V)
    • Integrated LIN transceiver
    • ADC input voltage divider
  • Timing and PWM
    • 4x 16-bit timer/counter/pulse-width modulator (TCPWM) blocks
    • Center-aligned, Edge, and pseudo-random modes
    • Quadrature decoder
  • Clock sources
    • ±2% up to 49.152MHz Internal Main Oscillator (IMO)
    • ±1% 2MHz High-Precision Oscillator (HPOSC)
    • ±40% 32kHz Internal Low-speed Oscillator (ILO)
    • ±4% 32kHz Precision Low-power Oscillator (PILO)
  • Communication
    • 1x independent run-time reconfigurable serial communication block (SCB) with re-configurable I2C, SPI, UART, or LIN Slave functionality
    • 1x independent Local Interconnect Network (LIN) block
    • LIN protocol compliant with LIN 2.2A and ISO 17987
  • I/O subsystem with up to 11x GPIOs
  • 6mm x 6mm, 32-QFN package with wettable flanks
  • -40°C to +125°C operating temperature range


  • 12V lead-acid battery monitoring (intelligent battery sensors)
  • High-voltage battery current sensors


Block Diagram

Block Diagram - Infineon Technologies PSoC™ 4 HV PA (High Voltage Precision Analog) MCUs
Published: 2023-05-22 | Updated: 2023-09-13