MAX5984AETI+T

Overview

The MAX5984AETI+T is a hot-swap controller designed for PCIe and PCI applications, featuring integrated power switches and current-limiting circuitry. It supports dual-channel operation with independent control for each channel. The device includes programmable soft-start to limit inrush current during power-up. Built-in protection mechanisms include overcurrent, overvoltage, and thermal shutdown to safeguard connected components. It operates within a supply voltage range of 3V to 16V and utilizes an 8-pin TSSOP package for compact board integration.

Feature Summary

• Integrated dual-channel hot-swap controllers with independent per-channel management
• Programmable soft-start functionality to control inrush current during initialization
• Comprehensive protection suite including overcurrent, overvoltage, and thermal shutdown
• Supports standard PCIe and PCI interface requirements for safe insertion and removal

Applications

• PCI Express (PCIe) card edge connectors
• PCI bus backplane systems
• Hot-pluggable peripheral devices
• Server and storage subsystems requiring safe power cycling

Procurement Notes

Verify the specific suffix 'ETI' corresponds to the correct temperature grade and tape-and-reel packaging configuration as defined in the official datasheet. Confirm that the '+T' designation indicates lead-free status and environmental compliance according to manufacturer standards. Ensure compatibility with your system's voltage rails and thermal management requirements before finalizing procurement.

Selection Notes

Select this component when designing systems requiring robust hot-swap capabilities for PCIe or PCI interfaces. Consider its dual-channel architecture if independent control of multiple slots is necessary. Evaluate the need for programmable soft-start settings to match your system's power delivery constraints. Verify that the TSSOP package fits your PCB layout constraints and thermal dissipation needs.

Part Context

This part belongs to Maxim Integrated's family of hot-swap controllers, specifically tailored for high-speed serial and parallel bus standards. It addresses the critical need for safe power management during live insertion and removal of expansion cards. The device simplifies design by integrating power switches and control logic into a single small footprint, reducing bill-of-materials complexity compared to discrete solutions.

Replacement Considerations

Check for direct pin-to-pin replacements within the same product family that may offer updated features or improved thermal performance. Verify electrical parameter compatibility, especially regarding threshold voltages and current limits, when substituting with other models. Consult the manufacturer's cross-reference guide for officially validated alternatives.