ST provides a large selection of PMICs (power management Integrated circuits) and SBCs (system basis chips) specifically designed for automotive electronic systems.
应用
产品类型
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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优势
- 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.
SPSB100G：适用于高度集成汽车处理器的高级电源管理IC
SPSB100G采用灵活的SPI可编程设置，通过集成SMPS和LDO提供可靠的多输出电源，确保传感器和汽车系统的稳健运行。
它可为系统微控制器、集成CAN-FD收发器（仅限SPSB100G）以及外部外设供电，并支持可调电压和电流范围。SPSB100G和SPSB100GB由意法半导体预配置，默认设置存储在USER-NVM中，客户可根据需要重新编程。
该器件包含一系列功能，旨在满足汽车安全完整性等级 (ASIL) 标准规定的功能安全要求，并支持冷启动、启停和电池电量不足工况等严苛的汽车环境。
SPSA068：面向微控制器应用的汽车电源管理IC (PMIC)
SPSA068是一款通过AEC-Q100认证的PMIC，可满足汽车环境的严苛要求。它具有一个负载电流为0.5 A和1.0 A的可调降压稳压器，以及一个可调至5.0 V、3.3 V或1.2 V的高精度电压基准，全部功能均可通过非易失性存储器 (NVM) 进行配置。SPSA068在低功耗模式下的静态电流仅为50 μA，非常适合需要以最小功耗驱动在单电源电压下工作的微控制器 (MCU) 的应用。
这款电源管理IC功能丰富，包括可编程软启动、电压监控器、扩频频谱和复位输出。它还包括一个带CRC的SPI接口（用于诊断和编程）以及一个用于提高功能安全性的窗口看门狗。SPSA068配备短路保护、热警告和关断功能，可确保运行稳健可靠。
SPSA068简单易用，减少了对外部元件的需求，提高了精度和安全性，符合汽车安全完整性等级要求 (ISO 26262) 。
STEVAL-SPSA068评估板用于为开发人员的设计工作提供支持。