3 Summary

The ISO6163 digital isolator helps reduce energy consumption in house hold appliances (white goods) and other industrial applications. The ISO6163 automatic enable feature provide low-power STANDBY state reducing the current consumption in the isolator and providing signals that can control additional system circuitry reducing energy outside of the isolator. The flexibility in the use cases of the device provide benefits under many use case scenarios.

This device helps system designers meet energy efficiency requirements from various governments and certifying bodies.

When using 5V supplies, the ISO6163 reduces the power in STANDBY state with respect to ACTIVE state with 50Mbps communication by 52.3mW (typical) for a 93% reduction in isolation power consumption. With 25Mbps communication by the power is reduced by 31.25mW (typical) for a 90% reduction in isolation power consumption.

Similarly when using 3.3V supplies, the ISO6163 reduces the power in STANDBY state with respect to ACTIVE state with 50Mbps communication by 43.7mW (typical) for a 93% reduction in isolation power consumption. With 25Mbps communication by the power is reduced by 27mW (typical) for a 88% reduction in isolation power consumption.

Significantly higher power saving at a system level is possible using the low-speed control channels to turn off additional circuitry on one or both sides of the isolation barrier when the circuits are not needed.