FAN7389MX

Gate Driver Overview

The FAN7389MX is a six-channel half-bridge gate driver IC manufactured by onsemi, designed for three-phase inverter applications. It operates with a supply voltage range of 10 V to 20 V and supports logic inputs compatible with 3.3 V and 5.0 V standards. The device provides peak output currents of 350 mA sourcing and 650 mA sinking per channel. It features high-voltage floating channels capable of bootstrap operation up to 600 V. Key electrical parameters include rise and fall times of 50 ns and 30 ns respectively, with an operating junction temperature range from -40°C to 150°C. The component is housed in a 28-SOIC surface-mount package.

Gate Driver Feature Summary

• Integrated shoot-through prevention logic to prevent simultaneous conduction of high-side and low-side switches
• Built-in advanced input filter and common-mode dv/dt noise-canceling circuit for signal integrity
• Over-current shutdown capability that turns off all six drivers simultaneously upon fault detection
• Floating channel design enabling bootstrap operation for high-side driving up to 600 V

Gate Driver Applications

• Three-phase motor inverter drivers
• Industrial inverters for power tools and sewing machines
• White goods such as air conditioners, washing machines, refrigerators, and dishwashers

Gate Driver Procurement Notes

Verify the specific ordering suffix against official onsemi documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with system voltage requirements and thermal management constraints before finalizing procurement. Cross-reference part numbers to distinguish between legacy Fairchild and current onsemi manufacturing sources.

Gate Driver Selection Notes

Select this component for designs requiring integrated protection features like over-current shutdown and shoot-through prevention in three-phase topologies. Evaluate the 28-SOIC package dimensions against PCB layout constraints. Confirm that the 600 V floating channel rating aligns with the maximum bus voltage of the target application.

Gate Driver Part Context

This device belongs to the FAN7389 series of three-phase half-bridge gate drivers. It integrates multiple protection functions typically found in discrete solutions into a single monolithic IC. The series is engineered for high reliability in industrial and consumer appliance environments where space efficiency and robust switching performance are critical.

Gate Driver Replacement Considerations

The FAN73892MX is a similar part number within the same product family offering comparable three-phase half-bridge functionality. Verify pinout compatibility and specific parameter tolerances before substitution.