Electric power steering is one of the applications that requires ASIL-D*, which must be supported on a system level. Renesas provides the required power management IC (PMIC) and the RH850/P1x microcontroller (MCU) as part of this reference design.

*ASIL: Automotive Safety Integrity Level. ASIL-D is the highest Automotive Safety Integrity Level.

System Benefits:

  • The high-end RH850 automotive MCU for chassis applications provides a variety of integrated safety features
  • The RAA270005 PMIC is designed for the RH850/P1x MCU with various fault diagnoses and monitor functions to support ASIL-D systems to reduce system bill-of-material costs and save on PCB space
  • This proven combination of MCU and PMICs shortens R&D cost and time



Winning Combinations Interactive Diagram

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AS231 AS231 AS231 AS231 Steering Wheel 1 Handle Angle .342 Steering Wheel Steering Wheel Steering Wheel Steering Wheel 12V Battery 12V Battery 12V Battery 12V Battery 12V Battery 12V Battery 12V Battery 12V Battery 12V Battery Connector Line Connector Line.142 Connector Line.143 Connector Line.144 Connector Arrow Connector Line.146 Connector Line.147 Connector Line.149 Connector Line.150 Connector Line.151 Connector Line.152 Connector Arrow.154 Connector Arrow.155 Connector Line.158 Connector double arrow Connector Line.163 Motor Current Motor Current Motor Current BLDC Motor BLDC Motor BLDC Motor Steering Wheel Steering Wheel SteeringWheel PMIC PMIC PMIC MCU MCU MCU Pre-Driver Pre-Driver Pre-Driver PMOS ANL2/ANL3 PMOS ANL2/ANL3 PMOSANL2/ANL3 BLDC Motor BLDC Motor Sheet.139 M M Sensor I/F Sensor I/F Sensor I/F Resolver Resolver Resolver CAN Transceiver CAN Transceiver CAN Transceiver Engine / Brake / Gateway Engine / Brake / Gateway Engine / Brake / Gateway Torque Sensor Torque Sensor Torque Sensor Connector Line.167
Exiting Interactive Block Diagram