FAN3229TMX-F085

Gate Driver Overview

The FAN3229TMX-F085 is a dual high-speed low-side gate driver manufactured by onsemi, designed to drive N-channel enhancement-mode MOSFETs in low-side switching applications. It provides high peak current pulses during short switching intervals and features TTL or CMOS input thresholds. The device includes internal undervoltage lockout circuitry that holds the output low until the supply voltage is within the operating range. It operates with a supply voltage between 4.5 V and 18 V, delivers an output current of -3 A source and 3 A sink, and is housed in an 8-pin SOIC package.

Gate Driver Feature Summary

• Dual channel configuration for independent low-side switching control
• High-speed operation with matched internal propagation delays between channels
• Integrated undervoltage lockout function to prevent improper switching
• Compatible with both TTL and CMOS logic input thresholds

Gate Driver Applications

• Synchronous rectifier circuits requiring critical timing alignment
• Full-bridge motor drive topologies
• Low-side switching applications for power management ICs

Gate Driver Procurement Notes

Verify component authenticity through authorized distributors as counterfeit risks exist. Confirm RoHS compliance status via official datasheets before integration. Check for AEC-Q101 automotive qualification if used in vehicle electronics. Ensure moisture sensitivity handling protocols are followed due to SMD packaging requirements.

Gate Driver Selection Notes

Select this part when dual low-side driving with precise channel matching is required. Consider the 3A peak current capability for moderate load switching. Evaluate the 4.5V to 18V supply range against system power rails. Compare rise/fall times against switching frequency requirements to minimize losses.

Gate Driver Part Context

This component belongs to the FAN322x series of dual high-speed low-side drivers from onsemi. The series is engineered for applications demanding synchronized dual outputs, such as synchronous rectification. Variants within the family differ primarily in output current ratings and specific package options while maintaining core functional similarities.

Gate Driver Replacement Considerations

Public confirmed substitute part numbers: FAN3227TMX-F085, FAN3228TMX-F085.