The 12 V lead-acid battery system has met its match. With increasingly strict emission regulations, growing power load requirements of advanced automotive electronics and the conversion from mechanical components to electronic functions, the traditional automotive battery of choice has reached its current-carrying capacity.
In response, automakers and their suppliers have developed a second, additional electrical system at 48 V which delivers more power at lower currents than a traditional 12-V battery can produce alone.
In the white paper, Bridging 12 V and 48 V in dual-battery automotive systems, I explain how a bidirectional buck-boost controller helps support a dual-bus topology.
You can also go straight to the reference design, Bidirectional DC-DC Converter Reference Design for 12-V/48-V Automotive Systems.
All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.
TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs andembedded processors, along with software, tools and the industry’s largest sales/support staff.