NCD57084DR2G

Isolators - Gate Drivers Overview

The NCD57084DR2G is a high-current single-channel IGBT gate driver featuring 2.5 kVrms internal galvanic isolation via capacitive coupling. It operates with a supply voltage range of 10 V to 20 V and delivers peak output currents of 7 A source and 4 A sink. The device integrates desaturation detection for short-circuit protection, utilizing a dedicated DESAT pin. Key timing parameters include a propagation delay of 60 ns maximum, with rise and fall times of 13 ns each. It is housed in an 8-pin SOIC package, supporting operation from -40°C to +125°C.

Isolators - Gate Drivers Feature Summary

• Integrates 2.5 kVrms galvanic isolation using capacitive coupling technology for robust signal transmission.
• Includes built-in desaturation detection circuitry to provide fast short-circuit protection for IGBTs.
• Delivers high peak drive current capability (7 A source / 4 A sink) for efficient switching control.

Isolators - Gate Drivers Applications

• Industrial motor drives requiring isolated gate control
• High-efficiency power conversion systems
• Inverter circuits in renewable energy applications

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix DR2G corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the 2.5 kVrms isolation rating meets the safety standards applicable to your target market. Ensure the operating temperature range aligns with the thermal management design of the final enclosure. Cross-reference the datasheet revision date to confirm compatibility with existing reference designs.

Isolators - Gate Drivers Selection Notes

Select this component when high-speed switching with integrated fault protection is required. The 2.5 kVrms isolation eliminates the need for external isolators, reducing board space. Compare against the NCD57081 series if lower cost or different isolation levels are acceptable. Consider the 7 A peak current for driving larger IGBT modules directly without additional buffering stages.

Isolators - Gate Drivers Part Context

This part belongs to onsemi's NCD5708x family of compact isolated gate drivers. These devices are designed for low-end cost and board-space-sensitive applications. The family utilizes capacitive coupling for isolation, offering a balance between performance and size compared to magnetic or optical alternatives.

Isolators - Gate Drivers Replacement Considerations

The NCD57081CDR2G is a related variant within the same family but may differ in isolation voltage or feature set. Verify functional equivalence regarding desaturation capabilities and peak current ratings before substitution. Check pinout compatibility to ensure direct replacement without PCB redesign.

Isolators - Gate Drivers FAQ

What type of isolation technology does the NCD57084DR2G use?

It uses internal galvanic isolation based on capacitive coupling technology.

Does this device support short-circuit protection?

Yes, it includes a dedicated desaturation detection function for short-circuit protection.