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Zonal DC-DC converter 48 V-12 V

Discover our scalable and comprehensive portfolio of zonal 48 V to 12 V DC-DC converters

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Overview

Innovating to 48 V: Lower cost and reduced wiring harness weight are some of the potential values of implementing 48 V as the third voltage rail in electric vehicles. Infineon supports you with tailored zonal 48 V to 12 V DC-DC converter solutions based on Si and future GaN technologies to realize these 48 V-related system cost potentials.

Benefits

  • Global expertise in 48 V markets
  • High efficiency
  • Flexibility
  • Space-saving design

Block diagram

About

Infineon offers a complete and comprehensive system solution for 48 V to 12 V DC-DC converters, including microcontrollers, supply ICs, gate drivers and high-power MOSFETs for the multi-phase bidirectional buck and switched tank converter (STC) topologies.
We provide the most appropriate topologies to support bidirectionality, high efficiency as well as size and power density to match your system requirements.

Integrating a DC-DC to zone controllers enables faster and more flexible implementation of 48V power distribution by elimination of additional wiring and secondary ECUs while maintaining the current zone architecture.? This integration is challenging since zones often have limited cooling and space and are already tasked with a controlling large number of car functions.? The combination can be effectively achieved by using the zone controllers existing AURIX? microcontroller to execute the DC-DC control.? Thermal challenges can be addressed by selection of Infineon¡¯s OPTIMOS? 7 MOSFETs, gate drivers and power supply devices. enabling a DC-DC with the highest possible efficiency and flexibility.

Application requirements and typical challenges of 48 V to 12 V DC-DCs depend on the integration environment and the zonal architecture concept. Infineon offers a comprehensive system and product portfolio to cover all requirements easily: Microcontrollers enabling?ISO 26262 compliant systems,?highly efficient power conversion, low power losses, limited cooling, loss-of-ground concepts and power / voltage scalability.

Infineon offers a complete and comprehensive system solution for 48 V to 12 V DC-DC converters, including microcontrollers, supply ICs, gate drivers and high-power MOSFETs for the multi-phase bidirectional buck and switched tank converter (STC) topologies.
We provide the most appropriate topologies to support bidirectionality, high efficiency as well as size and power density to match your system requirements.

Integrating a DC-DC to zone controllers enables faster and more flexible implementation of 48V power distribution by elimination of additional wiring and secondary ECUs while maintaining the current zone architecture.? This integration is challenging since zones often have limited cooling and space and are already tasked with a controlling large number of car functions.? The combination can be effectively achieved by using the zone controllers existing AURIX? microcontroller to execute the DC-DC control.? Thermal challenges can be addressed by selection of Infineon¡¯s OPTIMOS? 7 MOSFETs, gate drivers and power supply devices. enabling a DC-DC with the highest possible efficiency and flexibility.

Application requirements and typical challenges of 48 V to 12 V DC-DCs depend on the integration environment and the zonal architecture concept. Infineon offers a comprehensive system and product portfolio to cover all requirements easily: Microcontrollers enabling?ISO 26262 compliant systems,?highly efficient power conversion, low power losses, limited cooling, loss-of-ground concepts and power / voltage scalability.

Documents

Design resources

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