FAN7390N

Gate Driver Overview

The FAN7390N is a monolithic high- and low-side gate drive IC designed to drive high-speed MOSFETs and IGBTs operating up to +600V. It features a buffered output stage with all NMOS transistors for high pulse current driving capability and minimum cross-conduction. The device supports floating channels for bootstrap operation, common-mode dv/dt noise canceling, and built-in under-voltage lockout for both channels. It offers matched propagation delay, logic and power ground offset of +/- 7V, and compatibility with 3.3V and 5V input logic.

Gate Driver Feature Summary

• Monolithic high- and low-side gate drive IC capable of driving high-speed MOSFETs and IGBTs up to +600V
• Buffered output stage with all NMOS transistors for high pulse current driving and minimum cross-conduction
• Floating channels for bootstrap operation supporting voltages up to +600V
• Common-mode dv/dt noise canceling circuit with built-in under-voltage lockout for both channels

Gate Driver Applications

• PDP sustain driver
• HID lamp ballast
• SMPS
• Motor driver

Gate Driver Procurement Notes

Verify the exact suffix (e.g., MX, M1X) against the datasheet, as 'N' may indicate a specific package or tape-and-reel variant not explicitly detailed in general summaries. Confirm RoHS compliance status and lead times directly with onsemi or authorized distributors, as availability varies by region and production lot. Ensure the ordering part number matches the required pin configuration and voltage ratings.

Gate Driver Selection Notes

Select this component when driving high-voltage switches up to 600V with high peak currents. It is suitable for applications requiring noise immunity via dv/dt cancellation and precise timing through matched propagation delays. Consider the 3.3V/5V logic compatibility and the +/- 7V ground offset for system integration. Verify thermal performance and PCB layout requirements for the specific SOIC package used.

Gate Driver Part Context

The FAN7390 series includes variants like FAN7390MX and FAN7390M1X, typically housed in 8-SOIC or 14-SOP packages. These are half-bridge gate drivers from onsemi (formerly Fairchild), designed for high-frequency switching applications. The series emphasizes robustness against noise and efficient drive capabilities for power semiconductors.

Gate Driver Replacement Considerations

Check for direct substitutes such as FAN7390MX or FAN73901MX if pinouts and electrical characteristics match. Verify that any replacement maintains the 600V rating, 4.5A drive current, and logic compatibility. Cross-reference datasheets for propagation delay and UVLO thresholds to ensure functional equivalence.