Safe System Basis Chip with Buck and Boost DC/DC up to 1.5 A on Vcore

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Block Diagram

MC33907 and MC33908 Block Diagram

MC33907 and MC33908 Block Diagram


Energy Management Unit

  • Flexible DC/DC pre-regulator allowing Buck or Buck-Boost
  • Optional Boost to improve system availability at cranking
  • Multiple output power supplies from 0.5 up to 2 A
  • DC/DC voltage regulator to supply MCU core up to 1.5 A
  • 5 V/ 3.3 V linear voltage regulator dedicated to MCU I/Os
  • Linear voltage regulator dedicated to auxiliary loads
  • Multiple wake-up sources combined with ultra-low-power mode: CAN, LIN, I/Os, current detection, etc.
  • Battery sensing before and after reverse battery protection
  • Analog multiplexer to sense critical signals

Functional Safety Measures

  • Enhanced safety block associated with fail-safe outputs
  • Designed for ASIL D applications (FMEDA, Safety manual)
  • Secured SPI interface
  • Configurable I/Os for wake-up and safety purposes

Robust Physical Layers

  • ISO11898-2,-5 CAN high-speed physical interface
  • LIN 2.2/2.1, J2602-2 physical interface
  • High EMC immunity and ESD robustness

SafeAssure Functional Safety Program

SafeAssure Functional Safety Program

When it comes to functional safety, NXP stands for quality and reliability. Our SafeAssure program simplifies system-level safety requirements in accordance with ISO 26262.
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