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SI8663AB-B-IS1

Name: SI8663AB-B-IS1
Rating: 4.7 (12 reviews)

DGTL ISOLTR 2.5KV 6CH GP 16-SOIC

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規格

Part Status	Active
Base Product Number	SI8663
Technology	Capacitive Coupling
Type	General Purpose
Isolated Power	No
Number of Channels	6
Inputs - Side 1/Side 2	3/3
Channel Type	Unidirectional
Voltage - Isolation	2500Vrms
Common Mode Transient Immunity (Min)	35kV/µs
Data Rate	1Mbps
Propagation Delay tpLH / tpHL (Max)	35ns, 35ns
Pulse Width Distortion (Max)	25ns
Rise / Fall Time (Typ)	2.5ns, 2.5ns
Voltage - Supply	2.5V ~ 5.5V
Operating Temperature	-40°C ~ 125°C
Mounting Type	Surface Mount
Package	16-SOIC (0.154", 3.90mm Width)
Supplier Device Package	16-SOIC
Packaging	Tube

概述

Description

SI8663AB-B-IS1 is a digital isolator from Silicon Labs (Si866x family). It provides galvanic isolation between two logic domains, allowing safe data transfer without a direct electrical connection. Key points:
- Likely multi-channel (the “3” in the part name suggests three isolated channels) with uni- or bi-directional data paths.
- On-chip isolation barrier (high VRMS isolation rating per datasheet) and CMOS-compatible inputs/outputs.
- Low propagation delay and low static/dynamic power; compatible with common logic levels (3.3 V/5 V).
- Offered in a compact IS1 package for surface-mount applications.
- Used to isolate microcontrollers, digital controllers, motor drives, power supplies, sensors, and communication interfaces.
For exact specifications (isolation voltage, propagation delay, channel directions, supply rails VA/VB, recommended operating temperatures, and package details), consult the SI8663AB-B-IS1 datasheet and related application notes.

Package

The SI8663AB-B-IS1 is in an 8-pin SOIC package (SOIC-8), industrial temperature range.

Pinout

- Pin count: 8 pins (SOIC-8 package).
- Function: Dual-channel, bidirectional digital isolator (signal transfer across an isolation barrier) with separate supply pins on each side (VDD1/VSS1 and VDD2/VSS2).

Manufacturer

- Manufacturer: Silicon Labs (Silicon Laboratories, Inc.).
- What kind of company: A US-based fabless semiconductor company that designs and sells mixed-signal ICs and embedded system solutions (e.g., isolation, timing, wireless, microcontrollers) for IoT and embedded applications.

Application

Applications include galvanic isolation for digital signals between a controller and high-voltage/noisy domains. Typical uses: isolated SPI/I2C/UART interfaces, isolated I/O, isolated gate-drive interfaces for motor drives and switch-mode power supplies. Suitable for industrial automation (PLCs, sensors, actuators), power supplies/UPS, telecom equipment, and medical instrumentation requiring isolation.

Equivalent

SI8663AB-B-IS1 is a 3-channel digital isolator (iCoupler). Possible cross-refs from other vendors:
- Analog Devices: ADuM1250/1251/1252 (3-channel digital isolators)
- Texas Instruments: ISO774x / ISO784x families
- Renesas: ISL-series digital isolators
- Broadcom/ Avago: iCoupler digital isolators (HCPL/SiP lines)
Note: pinout, voltage, speed, and isolation ratings vary. For an exact cross-reference, verify channel count, insulation rating, and packaging on a distributor’s cross-reference tool.