Silicon Labs has introduced the Si88x4x quad digital isolator, which integrates mature technology with on-chip isolated DC-DC converters. This provides a stable output voltage of 3.3 or 5.0V at peak output power levels up to 2W (> 5V for external components).
These devices provide up to four digital channels. The DC-DC converter has a user-adjustable frequency to minimize emissions, a soft-start function to ensure safety, a shutdown option and loop compensation. Compared with traditional isolation technologies, ultra-low-power digital isolation channels have significant data rate, propagation delay, size, and reliability advantages. Supports data rates up to 100Mbps with a propagation delay of only 23ns for all devices.
Applications include industrial automation systems, electric vehicles, isolated power supplies, inverters, data acquisition, motor control, PLC and distributed control systems.
