Power management chip

  • 05-Jan-2010 09:41 EST

STMicroelectronics' L99PM62XP is an advanced power management chip for car body applications that optimizes overall system cost. The device addresses the challenge carmakers face in reducing the stand-by current consumption (quiescent current) at a time when the number of power-consuming products in the car is continuously increasing. It also provides comprehensive fail-safe functionality with reduced external components. The L99PM62XP provides a dedicated regulator with optimized dynamic behavior, enabling periodic system activation to monitor configurable wake-up sources, coupled with comprehensive diagnostic and system-status features. Addressing increasing system complexity, ST’s device integrates advanced fail-safe functionality to improve the sustainability and reliability of automotive electronic control units. The intrinsic fail-safe concept, including supervision of the microcontroller, supply voltages, and temperatures, prevents the system from locking up under all imaginable failure conditions.

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