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.

Features

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

Applications

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

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

Features

Applications

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Block Diagram

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