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Silicon Labs Launches Plug-and-Play Isolated Power Supply Solution

Si88xx Isolators with On-Chip dc-dc Converter Target Industrial Applications Including Factory Automation, Solar Inverters and Battery Management

"The Si88xx digital isolators provide industrial system developers with a complete, plug-and-play solution that greatly simplifies their power supply applications while ensuring long-term performance and reliability."

AUSTIN, Texas--(BUSINESS WIRE)--Silicon Labs (NASDAQ: SLAB), a leading provider of digital isolator and power products for industrial automation, today introduced a new family of high-speed, multi-channel digital isolators designed to provide a complete, highly integrated solution for signal and power isolation. Silicon Labs’ new Si88xx isolators feature an integrated dc-dc converter with 78 percent efficiency, deliver up to 2 W of power, and offer very low electromagnetic interference (EMI) emissions and high noise immunity. The Si88xx family reduces system cost, speeds time-to-market and enhances reliability for applications in harsh, noisy operating environments including factory automation, process control, programmable logic controllers (PLCs), solar inverters and automotive battery management.

Silicon Labs’ Si88xx isolator family addresses a critical need in industrial automation for plug-and-play isolated power supplies. Developers often must design made-from-scratch isolated power supplies, which can be a time-consuming, frustrating and costly process requiring numerous discrete components. Discrete power isolation solutions commonly use field-effect transistors (FETs), controllers, single-channel isolators or optocouplers, and other components. In contrast, a design based on a multi-channel Si88xx isolator requires the addition of only one miniature ferrite core transformer and a few discrete passive components. Solutions based on Si88xx isolators ultimately save multiple design iterations and reduce bill-of-materials (BOM) cost and design complexity while enhancing noise immunity and power efficiency.

Si88xx digital isolators provide up to 2 W of isolated power by harvesting power from the primary side to supply secondary side power. The isolators offer up to four high-speed digital isolation channels with excellent timing characteristics including low propagation delay and low jitter, enabling longer system lifetimes at high voltages. These signal isolation characteristics are critical for developers designing systems for industrial automation, battery management and motor control requiring long-term performance. The low-power, high-speed Si88xx digital isolation channels offer substantial data rate, propagation delay and reliability advantages over legacy isolation technologies including optocouplers. The Si88xx family supports data rates of up to 100 Mbps, and Si8xx devices achieve typical propagation delays of 23 ns.

http://www.silabs.com/products/power/isolators/Pages/default.aspx