Skyworks Solutions Inc.

03/27/2023 | Press release | Archived content

Skyworks introduced the Si834x Isolated Smart Switch and the Si830x Smart Switch.

Connecting Everyone and Everything, All the Time

Skyworks is pleased to introduce the Si834x Isolated Smart Switchand the Si830x Smart Switch.

With expertise in high voltage and superior isolation and more than 300 million isolation channels in field service, our isolation portfolio is used by a wide range of customers and applications, including industrial automation, transportation systems, home entertainment electronics and medical systems.  Our products support isolation voltages up to 5 kV and include digital isolators, isolated gate drivers, isolated analog and ADC, industrial I/O and isolated FET families.

Featured Products

Si834x devices provide up to four isolated high- or low-side switches with low "ON" state switch resistance. Si834x switches are ideal for driving resistive and inductive loads including solenoids, relays, and lamps commonly found in industrial control systems such as programmable logic controllers (PLC). Each switch is galvanically isolated for safety using Skyworks' groundbreaking CMOS based isolation technology.

Si834x switches are extremely robust and flexible load drivers and are capable of providing up to 0.5 A of IEC61131-2 compliant continuous current in a quad channel configuration, or up to 2.5 A of continuous current in a single channel configuration. Each switch can detect an open circuit condition and is protected against over-current, over-voltage from demagnetization (inductive kick or flyback voltage), and over-temperature conditions. An innovative multi-voltage smart clamp is used to efficiently handle an unlimited amount of demagnetization energy. The Si834x over-current protection includes an innovative inrush current mode on select products, allowing the switch to drive challenging loads such as lamps and DC motors. Additionally, the device power supplies are monitored and the switches are safely constrained or shutdown if a fault is detected.

An innovative multi-voltage clamp efficiently handles an unlimited amount of demagnetization energy.

The Si830x provides four high-side or low-side switches with low RON. These switches are ideal for driving resistive and inductive loads like solenoids, relays, and lamps commonly found in industrial control systems like Programmable Logic Controllers (PLC). They are easily interfaced directly to an MCU, or controlled through a digital isolator or optocoupler-based isolation barrier.
The logic interface supports low-power 2.5 V to 5 V MCUs and is powered by the switch's high-voltage field power supply. The field power supply supports a wide supply range, from 9V to 32V, making it ideal for industrial voltage levels. The switches are capable of providing 0.7 A under any valid load condition. An innovative multi-voltage clamp efficiently handles an unlimited amount of demagnetization energy. Each switch offers complete fault protection. A unique power estimation based overcurrent protection keeps the device cool and operational, even during a short circuit event. Additionally, the device power supplies are monitored, and the switches are safely constrained or shutdown on faults.
Three diagnostics are reported through an active-low, open-drain fault indicator pin. It can be connected to an LED for instant user feedback, connected to an MCU for advanced software control, or tied together with additional fault pins from other devices to simplify user feedback or reduce board layout complexity.

USA: 949-231-3000 | Asia: 886-2-2735-0399 | Europe: 33 (0) 143548540

Skyworks, 5260 California Ave, Irvine, CA 92617

Unsubscribe Manage preferences

Skyworks Solutions Inc. published this content on March 27, 2023, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on April 24, 2025 at 11:24 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at support@pubt.io