MAX4271ESA-T

Hot Swap Controllers Overview

The MAX4271ESA-T is a single-channel hot-swap voltage controller designed for 3V to 12V systems. It features programmable current limiting and dual-speed fault protection with bi-level threshold detection. The device integrates an autoretry function and operates within a supply voltage range of 2.7V to 13.2V, consuming only 600µA of quiescent current. It supports power-fail detection and includes overvoltage and undervoltage lockout protections. Packaged in an 8-SOIC surface-mount format, it functions reliably across an industrial temperature range from -40°C to +85°C.

Hot Swap Controllers Feature Summary

• Dual-speed fault protection with bi-level threshold detection
• Integrated autoretry mechanism for transient fault recovery
• Programmable current limiting for precise load control

Hot Swap Controllers Applications

• Hot-swap circuit protection for backplane systems
• Current-limited power distribution networks
• Fault-protected peripheral card insertion

Hot Swap Controllers Procurement Notes

Verify the specific suffix against official manufacturer documentation to confirm package type and tape-and-reel configuration. Ensure compatibility with system voltage rails and thermal requirements before integration. Cross-reference datasheet revisions to validate pinout consistency and electrical parameter updates.

Hot Swap Controllers Selection Notes

Select this component when designing systems requiring controlled power-up sequences and robust fault handling for 3V to 12V loads. The integrated autoretry and dual-speed protection simplify design compared to discrete solutions. Verify that the SOIC-8 package fits the available board space and thermal constraints.

Hot Swap Controllers Part Context

This part belongs to the MAX4271-MAX4273 family of hot-swap controllers from Analog Devices/Maxim Integrated. These devices provide comprehensive protection for high-density electronic systems by managing inrush currents and isolating faults without disrupting the main power bus.

Hot Swap Controllers Replacement Considerations

MAX4271ESA+ (Non-lead-free variant)

Hot Swap Controllers FAQ

What is the purpose of the dual-speed fault protection?

It provides two distinct current-limit thresholds to handle both slow-rising and fast-fault conditions, ensuring accurate protection during startup and abnormal operation.

How does the autoretry feature function?

Upon detecting a fault, the controller shuts down the output and automatically attempts to restart after a set timeout period, resuming normal operation if the fault condition clears.