FOD8321

Isolators - Gate Drivers Overview

The FOD8321 is a single-channel, high-speed logic output optocoupler featuring a 2.5A peak output current gate driver. It provides 5000Vrms isolation voltage and supports a supply voltage range of 16V to 30V. The device exhibits a typical propagation delay of 500ns for both low-to-high and high-to-low transitions, with a maximum pulse width distortion of 300ns. Rise and fall times are typically 60ns. It operates within a temperature range of -40°C to 100°C and utilizes a 5-SOP surface-mount package.

Isolators - Gate Drivers Feature Summary

• High-speed logic output design optimized for fast switching applications
• Integrated 2.5A peak output current capability for driving medium power IGBTs and MOSFETs
• Robust electrical isolation with 5000Vrms rating and high common-mode transient immunity

Isolators - Gate Drivers Applications

• Motor control inverter systems
• High-performance power supply circuits
• Fast switching drive for power IGBTs and MOSFETs

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix (e.g., R2V) against the datasheet to confirm packaging type and reel specifications. Ensure the input forward current does not exceed the maximum DC rating of 25 mA. Confirm that the output supply voltage remains within the 16V to 30V operational window during system integration.

Isolators - Gate Drivers Selection Notes

Select this component when high-speed signal transmission with significant isolation voltage is required. The 2.5A output current is suitable for medium-power devices. Consider the 500ns propagation delay for timing-sensitive designs. The 5-SOP package is appropriate for space-constrained surface-mount assemblies requiring robust galvanic isolation.

Isolators - Gate Drivers Part Context

The FOD8321 belongs to onsemi's family of logic output optocouplers designed for industrial and commercial applications. It serves as a bridge between low-voltage control circuits and high-voltage power stages. The device integrates an AlGaAs LED with a high-speed photodetector and output driver stage to ensure reliable data transmission across the isolation barrier.

Isolators - Gate Drivers Replacement Considerations

Check for direct pin-compatible substitutes within the same manufacturer's portfolio that match the 2.5A output current and 5000Vrms isolation requirements. Verify that any alternative device maintains similar propagation delay characteristics to ensure circuit timing integrity.