Dual Isolation plus DC-DC Converter Si88x2x Now at Mouser Electronics

Mouser Electronics, Inc. is now stocking Si88x2x Dual Digital Isolators from Silicon Labs. The Si88x2x modules integrates proven digital isolator technology with an on-chip isolated DC-DC converter to provide regulated output voltages of 3.3V or 5.0V at peak output power of up to 5W with external power switch.

The Silicon Labs Si88x2x Dual Digital Isolators, available from Mouser Electronics, include a DC/DC controller with user-adjustable frequency for minimizing emissions, a soft-start function for safety, a shutdown option, and loop compensation. The Si88x2x modules’ topology allows them to sense the output voltage on the secondary side without requiring additional optocouplers and support circuitry to bias those optocouplers. This allows the DC-DC converter to operate with excellent line and load regulation while reducing external components and increasing lifetime reliability. 

The DC-DC converter works in conjunction with an external transformer to provide up to 5W of isolated power with a 24V input supply and an external switch to supply the secondary side of the Si88xx2x, as well as other circuits on the isolated side with a 5V supply. The ultra-low-power digital isolation channels offer substantial data rate, propagation delay, size, and reliability advantages over legacy isolation technologies. Data rates up to 100Mbps are supported, and all devices achieve propagation delays of only 23ns (max).

About Mouser

Mouser Electronics is a worldwide leading authorized distributor of semiconductors and electronic components for over 800 industry-leading manufacturers. The company specialize in the rapid introduction of new products and technologies for design engineers and buyers. The company's extensive product offering includes semiconductors, interconnects, passives, and electromechanical components.