ST provides a large selection of PMICs (power management Integrated circuits) and SBCs (system basis chips) specifically designed for automotive electronic systems.
Applications
Product types
A PMIC is an integrated circuit designed to manage the power requirements of automotive electronic systems. It combines multiple power functions in a single chip: DC-DC converters, linear regulators, monitoring, sequencing, and safety features into a compact form factor.
An SBC complements PMICs by adding MCU support functions (supervision, communication) and often integrating CAN and/or LIN transceivers.
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Benefits
- Flexibility and compatibility: multichannel and configurable power supply schemes for several applications. A scalable product portfolio to support a wide range of MCU platforms. Integrated NVM enables precise PMIC and SBC configuration across diverse MCU families (from ST and others), ensuring seamless adaptability. Battery compatibility eliminates the need for pre-regulators
- Safety and reliability: AEC-Q100 qualified with functional safety support up to ASIL-D standard. Advanced features include thermal, and load dump protection
- Integration and efficiency: programmable via SPI with internal memory for flexible control. High switching frequency for compact PCB design. Low quiescent current to preserve battery life in electric and hybrid vehicles.
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SPSB100G: advanced Power Management IC for highly integrated automotive processors
Featuring flexible SPI-programmable settings, the SPSB100G delivers reliable multi-output power through integrated SMPS and LDOs, ensuring robust operation for sensors and automotive systems.
It can power the system microcontroller, an integrated CAN-FD transceiver (SPSB100G only), and external peripherals with adjustable voltage and current ranges. The SPSB100G and SPSB100GB are pre-configured from STMicroelectronics with default settings stored in the USER-NVM, which can be reprogrammed by customers as needed.
The device includes a range of features designed to meet the functional safety requirements specified by the Automotive Safety Integrity Level (ASIL) standards, and supports demanding automotive environments, including cold cranking, start-stop, and weak battery conditions.
SPSA068: automotive Power Management IC (PMIC) for microcontroller applications
The SPSA068 is an AEC-Q100 qualified PMIC, ideal for demanding automotive environments. It features an adjustable BUCK regulator with load currents of 0.5 A and 1.0 A, and a precise voltage reference adjustable to 5.0 V, 3.3 V, or 1.2 V, all configurable via non-volatile memory (NVM). With a low quiescent current of just 50 μA in low power mode, the SPSA068 is perfect for applications requiring minimal power consumption to drive microcontrollers (MCUs) that operate from a single-supply voltage.
This Power Management IC offers a comprehensive set of features, including a programmable soft start, voltage supervisors, a spread frequency spectrum, and a reset output. It also includes an SPI interface with CRC for diagnostics and programming, along with a window watchdog to enhance functional safety. The SPSA068 is equipped with short circuit protection, thermal warning, and shutdown capabilities, ensuring robust and reliable operation.
Designed for ease of use, the SPSA068 reduces the need for external components, enhancing precision and safety as defined by automotive Safety Integrity Levels requirements (ISO 26262).
The STEVAL-SPSA068 evaluation board is available to support developers in their designs.