SI8921BD-IS4 - Skyworks Solutions Inc.

Manufacturer Part Number

SI8921BD-IS4

Manufacturer

Skyworks Solutions, Inc.

Introduction

The SI8921BD-IS4 is a high-performance, high-voltage digital isolation amplifier designed for a variety of applications, including automotive, inverters, power supplies, and UPS.

Product Features and Performance

High-voltage operation up to 5.7 kVRMS

Wide common-mode voltage range of ±1200 V

Fast signal propagation delay of 50 ns (typ.)

Low input offset voltage of ±1 mV (max.)

Single +5 V supply voltage

Integrated transformer-based isolation barrier

Wide temperature range of -40°C to +125°C

Product Advantages

Reliable high-voltage isolation for safety-critical applications

Excellent common-mode rejection ratio (CMRR) for superior noise immunity

Compact 8-SOIC surface-mount package for space-efficient designs

Robust performance across a wide temperature range

Key Technical Parameters

Input Voltage Range: ±1200 V

Isolation Voltage: 5.7 kVRMS

Propagation Delay: 50 ns (typ.)

Input Offset Voltage: ±1 mV (max.)

Supply Voltage: +5 V

Quality and Safety Features

RoHS3 compliant

Designed for automotive and industrial applications

Compatibility

The SI8921BD-IS4 is a direct replacement for the SI8921BD isolation amplifier, providing the same functionality and performance in the same 8-SOIC package.

Application Areas

Automotive systems

Inverters

Power supplies

Uninterruptible power supplies (UPS)

Product Lifecycle

The SI8921BD-IS4 is an active product, and Skyworks Solutions, Inc. continues to support and manufacture this device. No discontinuation or replacement plans have been announced.

Key Reasons to Choose This Product

Reliable high-voltage isolation for safety-critical applications

Excellent noise immunity and common-mode rejection

Compact and space-efficient surface-mount package

Wide temperature range for robust performance in diverse environments

Proven track record in automotive and industrial applications