FOD3125

Isolators - Gate Drivers Overview

The onsemi FOD3125 is a high-temperature gate drive optocoupler featuring a single channel and an 8-pin PDIP through-hole package. It delivers a maximum continuous output current of 2.5 A, suitable for driving medium-power IGBTs and MOSFETs. Key electrical parameters include a typical forward voltage of 1.5 V to 1.8 V, a maximum input current of 16 mA, and an isolation voltage of 5000 Vrms. The device exhibits typical rise and fall times of 60 ns. It operates within a temperature range of -40°C to 125°C and complies with UL1577 standards.

Isolators - Gate Drivers Feature Summary

• Capable of driving most medium power IGBT/MOSFET at high temperatures up to 125°C
• Provides high noise immunity for fast switching applications
• Features logic output configuration for direct interface with control circuits

Isolators - Gate Drivers Applications

• Motor control inverter applications
• Fast switching driving of power IGBTs
• High-performance power supply designs

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix code against the manufacturer datasheet to confirm pinout and packaging variations. Ensure the procurement source provides valid UL1577 certification documentation. Confirm that the component meets the required operating temperature range of -40°C to 125°C for the intended application environment before finalizing orders.

Isolators - Gate Drivers Selection Notes

Select this component when high-temperature operation up to 125°C is required for gate drive isolation. The 2.5 A output current capability makes it suitable for medium-power IGBT and MOSFET drivers. Consider the 8-pin PDIP package for through-hole assembly requirements. Verify compatibility with input logic levels and ensure sufficient isolation voltage margins for the system design.

Isolators - Gate Drivers Part Context

The FOD3125 belongs to the FOD series of DC input optocouplers from onsemi. It is designed specifically for gate drive isolator applications where high temperature stability and fast switching speeds are critical. The device integrates an LED input side with a push-pull output stage to provide robust signal transmission across isolation barriers in power electronics systems.

Isolators - Gate Drivers Replacement Considerations

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