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48V/12V Automotive Bidirectional Synchronous Buck or Boost DC/DC Controller Increases Available Power

MILPITAS, CA — September 20, 2016 — Linear Technology Corporation announces the LTC3871, a 100V/30V bidirectional two phase synchronous buck or boost controller, ideal for 48V/12V automotive dual battery systems. Current 12V automotive systems are reaching their 3kW power limit due to the ever-increasing demand for more electrical devices. A newly proposed standard, LV148, combines a secondary 48V bus with the existing 12V system. The 48V rail includes a belt starter generator (BSG) or an integrated starter generator (ISG), a 48V lithium-ion battery and a bidirectional DC/DC converter for delivery of up to 10kW of available energy from the 48V and 12V batteries combined. This technology is targeted for conventional internal combustion automobiles, as well as hybrid electric and mild hybrid vehicles, as auto manufacturers strive to meet increasingly stringent CO2 emissions targets.

48V/12V Automotive Bidirectional Synchronous Buck or Boost DC/DC Controller Increases Available Power topntom.com

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