EmbeddedRelated.com
SI86P341BC-IS

SI86P341BC-IS

Skyworks Solutions, Inc.
Digital Isolators 3.75 kV 4-channel digital Isolator
Active114 in stock

Overview

The SI86P341BC-IS is a high-performance, quad-channel digital isolator from Skyworks Solutions featuring integrated isolated power. Utilizing proprietary capacitive coupling technology, it provides 3.75 kVrms isolation and supports high-speed data rates up to 150 Mbps. This specific variant is configured with three forward channels and one reverse channel in a 20-pin wide-body SOIC package.

Why Choose This Part

This isolator simplifies PCB layouts by integrating isolated power, eliminating the need for a separate DC-DC converter. It offers high electromagnetic immunity and low propagation delay, supporting high-speed 150 Mbps operation across a wide industrial temperature range of -40C to 125C. The capacitive isolation technology provides superior reliability and longer service life compared to optocoupler-based solutions.

Applications

Industrial Automation
Provides robust galvanic isolation for PLCs and distributed control systems operating in electrically noisy environments.
Isolated SPI Communication
The 3/1 channel configuration is ideal for isolating SPI buses, accommodating MISO, MOSI, SCLK, and SS signals.
Motor Control Inverters
Protects low-voltage controller logic from high-voltage transients in motor drive power stages.
Isolated Data Acquisition
Ensures signal integrity and safety when interfacing sensitive analog-to-digital converters with high-voltage sensors.

Key Specifications

Type General Purpose
Data Rate 150Mbps
Technology Capacitive Coupling
Channel Type Unidirectional
Mounting Type Surface Mount
Isolated Power Yes
Package / Case 20-SOIC (0.295", 7.50mm Width)
Voltage - Supply 3.135V ~ 3.465V
Number of Channels 4
Voltage - Isolation 3750Vrms
Operating Temperature -40degC ~ 125degC
Inputs - Side 1/Side 2 3/1
Rise / Fall Time (Typ) 2.5ns, 2.5ns
Supplier Device Package 20-SOIC
Pulse Width Distortion (Max) 6.7ns (Min)
Propagation Delay tpLH / tpHL (Max) 15ns, 15ns
Common Mode Transient Immunity (Min) 100kV/us

Getting Started

When designing with the SI86P341BC-IS, ensure proper decoupling capacitors are placed as close to the VDD pins as possible. Review the creepage and clearance requirements of your specific PCB to maintain the 3.75 kVrms isolation rating. For evaluation, Skyworks provides various Si86xx development kits that demonstrate high-speed digital isolation and integrated power performance.

Also Consider

ADuM5401 Analog Devices - An alternative digital isolator with integrated isoPower technology and a similar 3/1 channel configuration.