MAX5903AAETT+

Hot Swap Controllers Overview

The MAX5903AAETT+T is a hot-swap voltage controller designed for safe insertion of circuit cards into live backplanes. It operates within a supply voltage range of +9V to +72V and features a single channel with no internal switch, requiring an external P-channel MOSFET. The device limits inrush current during startup and provides overcurrent protection via a circuit-breaker function that disables during initial power-up. It includes adjustable under-voltage lockout (UVLO) and consumes 1 mA of operating supply current.

Hot Swap Controllers Feature Summary

• Enables safe hot-plugging into live backplanes without causing power-supply glitches
• Limits inrush current to the load while providing overcurrent protection
• Eliminates most external components by integrating control logic with a single external MOSFET

Hot Swap Controllers Applications

• Server and storage backplane power sequencing
• Telecommunications equipment card insertion
• Industrial control system module replacement
• High-voltage peripheral board integration

Hot Swap Controllers Procurement Notes

Verify component authenticity through authorized Analog Devices or Maxim Integrated distributors. Confirm RoHS compliance status and check for obsolescence notices, as availability may be restricted. Ensure the specific suffix matches the required package variant. Request official datasheets and test reports to validate performance specifications against application requirements before finalizing procurement decisions.

Hot Swap Controllers Selection Notes

Select this controller when designing systems requiring high-voltage hot-swap capabilities up to 72V. It is suitable for applications needing precise inrush current limiting and fault protection without complex external circuitry. Consider the SOT-23/TDFN package options based on space constraints. Ensure the external MOSFET selection aligns with the controller's drive characteristics and thermal requirements for reliable operation.

Hot Swap Controllers Part Context

This component belongs to the Simple Swapper family of hot-swap controllers from Maxim Integrated. It shares functional similarities with the MAX5902 series but offers specific pinout and feature configurations tailored for simplified implementation. The device integrates essential protection mechanisms into a compact footprint, serving as a core power management solution for modular electronic architectures.

Hot Swap Controllers Replacement Considerations

The MAX5902 series serves as a related alternative within the same product family. Verify pin compatibility and electrical parameter alignment before substitution. Check for any differences in UVLO thresholds or fault response times between the AA and other suffix variants to ensure seamless integration.