Si86xx Digital Isolator for Signal Isolation

Product Summary

The Si86xx series is a digital isolator for signal isolation that uses a low-power CMOS process and has a proven track record primarily in isolating digital interfaces such as SPI and RS-485.

The lineup includes models with 1 to 6 channels, allowing you to select the optimal model number depending on the number of input and output channels. Operation is guaranteed over a wide temperature range, and there is no change in characteristics due to aging like with general photocouplers, making design easy. It can also be used as a level shifter to connect signals from circuits with different voltages on the primary and secondary sides. The only external component required is a VDD bypass capacitor.

For details, please refer to the model number table and data sheet described below, and use this article to select a model number for the Si86xx series.

Product features

Low power consumption (1.6mA/ch 1Mbps, 5.5mA/ch 100Mbps 5V)
Lineup of 1 to 6ch
Supports high-speed signals of ~150Mbps (delay time 8ns typ)
~50KV/us (typ) high CMTI (100KV/us (typ) Si86xxT)
Supports 2.5V/5V power supply
~5KVrms isolation voltage
Default Hi, Low options
SOIC SOIC-wide body QSOP and other packages
Wide operating temperature range TA -40 to 125°C
10KV surge tolerant product available (Si86xxT)

Product name and options

Si86xx has a large lineup. Multi-channel models have a lineup with different numbers of inputs and outputs. We also have models with different insulation voltage, packages, and logic with initial values. It is a model that can use a very high-speed signal with a speed of 150 Mbps. (There are some models with 1 Mbps)

We also have a product lineup that can perform bidirectional signal transmission that can be used for isolation such as I2C and SMBus. (1.7MHz max)

Products with bidirectional isolated channels that can be used for I2C, etc.

How to attach a suffix according to the product characteristics of Si86xx

Target application

・Industrial application
-Motorcontrol
-Interfaceisolation
-isolationswitch
・Power application
-Batterymanagement system
・Healthcare applications
・In-vehicle application
-Onboardcharger
-Batterymanagement
-Tractioninverter
・Signal isolation
-level shift
-ADC/DAC signal isolation

Evaluation Board

Si86xx Isolator Evaluation Kit

Evaluation board with Si8600AD, Si8605AD, Si8663BD, Si8663EC, Si8655BA, Si8621BC mounted.

User Guide: Si86XX ISO EVALUATION BOARD USER'S GUIDE　　
User Guide: Si86XX CMOS DIGITAL ISOLATOR-BASED SERIAL INTERFACE USER'S GUIDE

Si86XXTISO-KIT Si86xxT Multi-Channel Isolator Evaluation Kit

Evaluation board with Si8642ET-IS, (4-ch (inverted: 2ch), 150 Mbps, 5KVrms 10 kV surge withstand, Wide Body, Default High I/O) mounted.

User Guide : UG130: Si86xxT-EVB User's Guide
User Guide: Si86XX ISO EVALUATION BOARD USER'S GUIDE