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SI86P420BC-IS

SI86P420BC-IS

Skyworks Solutions, Inc.
Digital Isolators 3.75 kV 2-channel digital Isolator
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Overview

The SI86P420BC-IS is a high-performance, 2-channel digital isolator from Skyworks Solutions featuring integrated isolated power. It utilizes capacitive coupling technology to provide 3750Vrms isolation while supporting high-speed data rates up to 150Mbps. This device is designed for applications requiring robust galvanic isolation and a compact footprint by eliminating the need for an external isolated DC-DC converter.

Why Choose This Part

The primary advantage is the integration of both 3.75kV isolation and a DC-DC converter into a single WB SOIC-16 package, significantly reducing PCB area. It supports a wide supply range of 3.135V to 3.465V and provides a high output current capability of up to 125mA for the isolated rail.

Applications

Industrial Automation
Provides high-speed signal isolation for PLC and motor control systems while delivering isolated power to the field-side circuitry.
Isolated SPI Communication
Ideal for isolating SPI buses in noisy environments, supporting clock speeds that take advantage of the 150Mbps data rate.
Battery Management Systems
Ensures safety and signal integrity in high-voltage battery monitoring by providing galvanic isolation between the battery cells and the controller.
Isolated Sensor Interfaces
Powers and isolates analog-to-digital converters (ADCs) or other sensors located on a separate ground plane.

Key Specifications

Type General Purpose
Data Rate 150Mbps
Technology Capacitive Coupling
Channel Type Unidirectional
Mounting Type Surface Mount
Isolated Power Yes
Package / Case 16-SOIC (0.295", 7.50mm Width)
Voltage - Supply 3.135V ~ 3.465V
Number of Channels 2
Voltage - Isolation 3750Vrms
Operating Temperature -40degC ~ 125degC
Inputs - Side 1/Side 2 2/0
Rise / Fall Time (Typ) 2.5ns, 2.5ns
Supplier Device Package 16-SOIC
Pulse Width Distortion (Max) 6.7ns (Min)
Propagation Delay tpLH / tpHL (Max) 15ns, 15ns
Common Mode Transient Immunity (Min) 100kV/us

Getting Started

To evaluate this part, design a PCB following the manufacturer's layout guidelines for creepage and clearance to maintain the 3750Vrms rating. Ensure adequate decoupling capacitors are placed close to the VDD pins as specified in the datasheet to manage the switching noise of the integrated DC-DC converter.

Also Consider

SI86P421BC-IS Skyworks Solutions Inc. - Variant of the same family providing one forward and one reverse channel for bidirectional communication.

Categories

Interface ICs > Digital Isolators