Overview

Description

Renesas offers an ideal system for 48V mild hybrid vehicles and electric motorcycles using a highly efficient 12V/48V DC/DC converter. The solution consists of an LV148*1 board net and supports functional safety*2.

System Benefits​:

  • Multi-phase DC/DC solution delivers beyond 3kW between 12V and 48V board nets at over 95% efficiency.
  • Bidirectional analog controller eliminates the need for DSP with complicated firmware, separate buck/boost controllers and complex switching logic.
  • Supports functional safety up to ASIL B with an RH850 MCU and Renesas Regulator.
  • Reduces the need to determine modes and optimal settings for the ISL78226 PWM controller, hence shortening the evaluation time.

*1 Automotive 48V power supply standards formulated mainly by German automakers 
*2 Please assess on customer system

Comparison

Applications

Winning Combinations Interactive Diagram

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16:9 Phase 1 - 6 Phase 6 Phase 6 Phase 6 Phase 5 Phase 5 Phase 5 Phase 4 Phase 4 Phase 4 Phase 3 Phase 3 Phase 3 Phase 2 Phase 2 Phase 2 Phase 1 Phase 1 Phase 1 AS218 AS218 AS218 N-Channel MOSFET 1 N-Channel MOSFET N-Channel MOSFET Half-Bridge Driver Half-Bridge Driver Half-BridgeDriver 48V Battery 48V Battery 48V Battery 48V Battery 48V Battery 48V Battery 48V Battery 48V Battery 48V Battery Bidirectional PWM Bidirectional PWM Bidirectional PWM MCU MCU MCU Regulator Regulator Regulator 12V Battery 12V Battery 12V Battery 12V Battery 12V Battery 12V Battery 12V Battery 12V Battery 12V Battery Connector Line CAN CAN CAN Connector Line.81 Connector Line.83 Connector Line.84 Connector Arrow Connector Line.88 Connector Line.89 Connector Line.90 Connector Line.97 N-Channel MOSFET 2 N-Channel MOSFET N-Channel MOSFET Connector double arrow Evaluation Kit Evaluation Kit Evaluation Kit Starter Kit Starter Kit Starter Kit Connector double arrow.101 Connector Arrow.102 PWM PWM PWM 12C/PMBus I2C/PMBus I2C/PMBus Sheet.44
Exiting Interactive Block Diagram