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Si86P442BC-IS

Si86P442BC-IS

MPN: SI86P442BC-IS
Skyworks Solutions, Inc.
Digital Isolators 3.75 kV 4-channel digital Isolator
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Overview

The Si86P442BC-IS is a high-performance 4-channel digital isolator with integrated isolated power, providing 3750Vrms isolation in a wide-body SOIC-20 package. It features a 2/2 channel configuration (2 forward, 2 reverse) and supports data rates up to 150Mbps with high common-mode transient immunity of 100kV/us. This device is designed to provide robust signal isolation and power transfer in space-constrained industrial and automotive systems.

Why Choose This Part

This isolator offers exceptional timing performance with a maximum propagation delay of 15ns and minimizes signal distortion at 150Mbps. Its integrated isolated power capability reduces PCB footprint by eliminating external DC-DC converter components. Additionally, the 100kV/us CMTI ensures reliable data integrity even in electrically noisy environments with high voltage slew rates.

Applications

Isolated SPI/UART Communication
Provides high-speed signal isolation for microcontrollers and peripherals operating on different voltage domains.
Industrial Automation
Protects sensitive control logic from high-voltage transients and ground loops in factory floor environments.
Battery Management Systems (BMS)
Safely bridges communication between high-voltage battery stacks and low-voltage monitoring circuits.
Motor Control Inverters
Isolates gate drive signals and feedback loops from high-power switching noise.

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 2/2
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

Designers should ensure proper decoupling with low-ESR capacitors placed as close to the VDD pins as possible to maintain power stability. When routing, maintain the creepage and clearance distances required for 3.75kVrms isolation on the PCB layout. Evaluation can be performed using Skyworks Solutions development kits designed for the Si86xxx isolator family.