SI8640BD-B-IS2

Digital Isolators Overview

The SI8640BD-B-IS2 is a Skyworks digital isolator featuring four independent channels with unidirectional signal transmission. It supports data rates up to 150 Mbps and provides an isolation voltage of 5000 Vrms using capacitive coupling technology. The device operates on supply voltages ranging from 2.375 V to 5.5 V, consuming a maximum power dissipation of 275 mW. Key electrical parameters include a propagation delay of 8 ns, rise/fall times of 4 ns, and pulse width distortion of 4.5 ns. It functions within a temperature range of -40°C to +125°C and is housed in a 16-pin SOIC-wide package.

Digital Isolators Feature Summary

• Capacitive coupling architecture ensures high-speed operation without start-up initialization requirements.
• Wide operating supply voltage range accommodates various logic levels from 2.5 V to 5.5 V.
• High insulation voltage rating of 5000 Vrms provides robust protection for sensitive circuits.

Digital Isolators Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing high-voltage safety compliance
• Power management circuits for motor drives

Digital Isolators Procurement Notes

Verify the specific suffix 'IS2' corresponds to the wide SOIC-16 package configuration during procurement. Confirm that the component meets AEC-Q100 qualification if automotive applications are intended. Ensure compatibility with standard surface-mount assembly processes for the specified package type. Cross-reference datasheet revisions to confirm parameter consistency before finalizing orders.

Digital Isolators Selection Notes

Select this model when four isolated channels are required for high-speed data transmission up to 150 Mbps. The 5000 Vrms isolation rating makes it suitable for harsh electrical environments. Consider the 8 ns propagation delay for timing-critical applications. The wide supply voltage range allows flexibility in system design compared to fixed-voltage alternatives.

Digital Isolators Part Context

This component belongs to the Si864x series of digital isolators from Skyworks Solutions. It utilizes advanced capacitive isolation technology to replace traditional optocouplers. The series offers improved performance in speed, power consumption, and reliability. It is designed for applications demanding high common-mode transient immunity.

Digital Isolators Replacement Considerations

SI8640ED-AS2: Offers higher 5 kV isolation but different packaging. SI8640EC-B-IS1: Provides 3.75 kV isolation in a narrow SOIC package. SI8640BT-ISR: Features lower 2.5 kV isolation in a standard SOIC package. Verify pinout and thermal characteristics when substituting.