FAN5069MTCX

Overview

The FAN5069MTCX is a dual-channel hot-swap voltage controller manufactured by Fairchild Semiconductor. It provides precise current limiting and power monitoring for PCIe, PCI-X, and other peripheral bus applications. The device features adjustable current limit thresholds, programmable soft-start timing, and fault protection mechanisms including over-voltage and under-voltage lockout. Packaged in a TSSOP-20 format, it supports system-level power management with integrated diagnostics.

Feature Summary

• Dual-channel independent control for simultaneous hot-plug operations
• Integrated high-side N-channel MOSFET drivers with current sensing
• Programmable soft-start to limit inrush current during insertion
• Fault detection and reporting for over-current and thermal events

Applications

• PCIe and PCI-X peripheral card hot-swap systems
• Server backplane power distribution units
• Industrial I/O module insertion interfaces
• Telecommunications equipment board replacement systems

Procurement Notes

Verify the specific suffix MTCX corresponds to the TSSOP-20 package variant when sourcing. Confirm RoHS compliance status as per the latest manufacturer datasheet revision. Ensure compatibility with existing gate drive resistors and sense resistor configurations in the target design. Cross-reference the part number against the official Fairchild/ON Semiconductor component database to avoid obsolete or discontinued stock variations.

Selection Notes

Select this component for designs requiring independent dual-channel power sequencing and protection. Evaluate the required current limit settings against the load specifications to ensure adequate margin. Consider the thermal performance of the TSSOP-20 package relative to the expected dissipation during fault conditions. Verify that the supply voltage range matches the system's available rails before integration.

Part Context

This part belongs to the FAN5069 series of hot-swap controllers designed for robust peripheral bus connectivity. It addresses the need for safe insertion and removal of electronic modules without disrupting system operation. The series is widely used in computing and communication infrastructure where reliability and controlled power delivery are critical requirements.

Replacement Considerations

Check for direct pin-compatible alternatives within the ON Semiconductor portfolio such as the FAN5069MTX if packaging differences exist. Verify functional equivalence regarding current limit accuracy and fault response times. Ensure any substitute maintains the same dual-channel architecture and diagnostic output capabilities.