FOD8318R2

Isolators - Gate Drivers Overview

The FOD8318R2 is a single-channel MOSFET output optocoupler designed for IGBT and SiC gate drive applications. It features an active Miller clamp to prevent false turn-on during high dv/dt events. The device provides a peak output current of 2.5 A with a supply voltage range of 15 V to 30 V. Key electrical parameters include a common mode transient immunity (CMTI) of 35 kV/µs, maximum propagation delays of 500 ns for both low-to-high and high-to-low transitions, and a maximum pulse width distortion of 300 ns. It operates within a temperature range of -40°C to 100°C and utilizes a 16-SOIC wide-body package.

Isolators - Gate Drivers Feature Summary

• Integrates an active Miller clamp circuit to suppress spurious turn-on in high-speed switching environments
• Provides desaturation detection capability for isolated fault signaling in power protection schemes
• Delivers high common mode transient immunity to ensure signal integrity under rapid voltage changes

Isolators - Gate Drivers Applications

• Industrial power supplies and motor drives
• Photovoltaic inverters and solar energy systems
• On-board chargers for electric vehicles
• DC motor control circuits

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix R2 indicates reel packaging when sourcing. Confirm the 16-SOIC wide-body package dimensions match PCB layout requirements. Ensure input forward current limits are respected to maintain isolation reliability. Cross-reference datasheet revision dates to confirm parameter consistency against design specifications.

Isolators - Gate Drivers Selection Notes

Select this component when driving IGBT or SiC devices requiring robust noise immunity. The integrated Miller clamp reduces external component count compared to standard optocouplers. Verify that the 35 kV/µs CMTI rating exceeds the system's expected dv/dt stress levels. Consider the 15-30 V output supply range compatibility with target gate driver voltages.

Isolators - Gate Drivers Part Context

This part belongs to onsemi’s FOD8318 family of high-performance gate drive optocouplers. The series is engineered for demanding power electronics applications where reliable isolation and fast switching are critical. The FOD8318R2 variant specifically offers reel packaging for automated assembly processes.

Isolators - Gate Drivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.