High-Voltage Batteries Ahead! Proceed with Isolation!

This article is part of the Power Management Series: Delving Into Power DensityTexas Instruments introduced a family of solid-state relays that uniquely integrates power and signal transfer in a single chip with robust isolation that is becoming standard in electric vehicles (EVs).The chips include the TPSI3050-Q1 isolated driver IC with an integrated 10-V gate supply and the TPSI2140-Q1 1,400-V isolated switch that delivers “industry-leading reliability” in a smaller envelope while reducing costs.Jeff Morroni, head of power management R&D at TI, said car manufacturers are building batteries into EVs that have close to 10X the voltages of most vehicles on the road. As a result, they are also investing in “isolation” technologies to help keep everyone and everything inside safe from high-voltage hazards.Danger! High-Voltage!Electronic isolation prevents the flow of…

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