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SI8663BC-B-IS1

SI8663BC-B-IS1

Skyworks Solutions, Inc.
Digital Isolators 3.75 kV 3 forward & 3 reverse 6-channel isolator
1,292 in stock
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Overview

The SI8663BC-B-IS1 is a high-performance six-channel digital isolator from Skyworks Solutions, featuring three forward and three reverse channels. Utilizing proprietary capacitive coupling technology, it provides 3.75 kVrms isolation and supports high-speed data rates up to 150 Mbps while maintaining low propagation delay.

Why Choose This Part

This device offers excellent reliability with a high common-mode transient immunity (CMTI) of 35kV/us and AEC-Q100 qualification for automotive use. Its 3/3 channel configuration is ideal for bidirectional communication on a single chip, reducing PCB footprint compared to using multiple discrete isolators.

Applications

Industrial Fieldbus Isolation
Provides galvanic isolation for multi-channel communication protocols like SPI or custom parallel buses in harsh factory environments.
Battery Management Systems (BMS)
Safely bridges high-voltage battery stacks and low-voltage control logic in electric vehicle power electronics.
Isolated PWM Control
Transmits high-speed motor control signals across an isolation barrier with minimal timing jitter and high noise immunity.

Key Specifications

Type General Purpose
Data Rate 150Mbps
Technology Capacitive Coupling
Channel Type Unidirectional
Mounting Type Surface Mount
Isolated Power No
Package / Case 16-SOIC (0.154", 3.90mm Width)
Voltage - Supply 2.5V ~ 5.5V
Number of Channels 6
Voltage - Isolation 3750Vrms
Operating Temperature -40degC ~ 125degC
Inputs - Side 1/Side 2 3/3
Rise / Fall Time (Typ) 2.5ns, 2.5ns
Supplier Device Package 16-SOIC
Pulse Width Distortion (Max) 4.5ns
Propagation Delay tpLH / tpHL (Max) 13ns, 13ns
Common Mode Transient Immunity (Min) 35kV/us

Getting Started

Ensure both VDD1 and VDD2 are bypassed with 0.1uF and 4.7uF capacitors placed as close to the pins as possible for stable operation. Since this IS1 variant defaults to a low state on loss of power, verify that your system safety logic is compatible with a logic 0 fail-safe condition.

Also Consider

ADuM163N Analog Devices - Uses iCoupler transformer technology as an alternative to capacitive coupling for applications requiring different EMI profiles.

Categories

Interface ICs > Digital Isolators
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