MAX5901NNEUT+T

Hot Swap Controllers Overview

The MAX5901NNEUT+T is a hot-swap voltage controller designed for negative supply rails ranging from -9V to -100V. It enables safe insertion of circuit cards into live backplanes without power-supply glitches. The device limits inrush current during startup and provides overcurrent protection via an adjustable circuit-breaker function. It requires only an external n-channel MOSFET, eliminating other passive components. Packaged in a surface-mount SOT-23-6, it operates within a temperature range of -40°C to +85°C with a supply current of 500µA.

Hot Swap Controllers Feature Summary

• Enables safe hot-plugging of circuit cards into live backplanes without causing power-supply glitches
• Limits inrush current by gradually turning on the external MOSFET during startup
• Provides adjustable circuit-breaker functionality for overcurrent protection
• Simplifies design by requiring only an external n-channel MOSFET

Hot Swap Controllers Applications

• Server and storage system backplane power sequencing
• Telecommunications equipment power distribution
• Industrial control board insertion protection
• Network infrastructure hot-swappable module integration

Hot Swap Controllers Procurement Notes

Verify the suffix 'NNEUT' corresponds to the standard SOT-23-6 package and tape-and-reel quantity. Confirm the '+T' designation indicates RoHS compliance and lead-free status as per Analog Devices specifications. Ensure the negative voltage rating matches the system rail requirements between -9V and -100V. Check for any specific ordering prefixes or suffixes that may alter thermal or electrical characteristics.

Hot Swap Controllers Selection Notes

Select this component when designing systems requiring negative voltage hot-swap protection. It is suitable for applications needing minimal external component count compared to discrete solutions. Consider the SOT-23-6 package size constraints and the requirement for an external N-channel MOSFET rated for the system voltage. Verify that the adjustable current limit settings align with the load's maximum operating current and fault tolerance requirements.

Hot Swap Controllers Part Context

Part of the Simple Swapper family, the MAX5901 complements the MAX5900 series. While the MAX5900 typically handles lower voltage ranges, the MAX5901 supports higher negative voltages up to -100V. Both share similar functional architectures but differ in input voltage specifications. This part serves as a specialized solution for high-voltage negative rail protection in dense electronic assemblies.

Hot Swap Controllers Replacement Considerations

The MAX5900AAEUT+T is a related device within the same family but operates at different voltage levels. Verify compatibility before substitution, as pinouts and voltage ratings may differ. No direct cross-model substitutes are confirmed in public documentation; consult official Analog Devices resources for equivalent part numbers.