Isolation

Isolation in electronics design is vital in electric vehicles, robotics and other applications where voltages can exceed thousands of volts. Isolation packaging helps facilitate safety and ensure system protection. For voltages over 200V, the shape of the wire-bonds and trajectory of the wire relative to the silicon are important. Wires too close to the silicon can create arcing paths across the isolation barrier. Figure 18 shows the TPSI3050-Q1 isolated switch driver, which shares signal and power across the package, while the packaging isolates the voltage across the isolation barrier.

Figure 18 Using magnetic isolation to send both power and signals reliably across an isolation barrier.