To reduce the environmental impact from energy consumption, various governments and certifying bodies are making the power consumption requirements for house hold appliances (white goods) and other industrial applications more stringent. The ISO6163 is a 6-channel digital isolator with 4 high-speed communication channels and 2 low-speed control channels. The low-speed control channels have an integrated automatic enable which provides a bi-directional wake-up capability controlling the low-power STANDBY state of the device even across the isolation barrier. In appliances and other applications where high-speed data communication is not required all the time, this device helps reduce system power consumption to turning off the high-speed channels and allowing control of both sides of the isolation barrier to power down and wake-up entire sub-systems within the appliance or application.

This application note introduces several use cases of the device: MCU to SPI peripheral, MCU to MCU, and MCU to bus.