MAX5903LBEUT-T

Hot Swap Controllers Overview

The MAX5903LBEUT-T is a hot-swap controller designed for safe circuit card insertion into live backplanes. It operates within a supply voltage range of +9V to +72V and features an adjustable current limit function. The device provides overcurrent protection with a circuit-breaker capability, which is disabled during startup to allow inrush current flow. It utilizes a SOT-23-6 surface-mount package and functions across an operating temperature range of -40°C to +85°C.

Hot Swap Controllers Feature Summary

• Enables safe hot-plugging of circuit cards into live backplanes without causing power-supply rail glitches
• Provides adjustable inrush current limiting and overcurrent protection via an integrated circuit-breaker function
• Eliminates the need for external components other than the required p-channel MOSFET

Hot Swap Controllers Applications

• Hot-plug applications requiring safe insertion into live backplanes
• Power supply sequencing systems
• Overcurrent protection circuits for high-voltage loads

Hot Swap Controllers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and specific ordering suffixes against official Analog Devices documentation. Ensure storage conditions meet moisture sensitivity level requirements prior to assembly.

Hot Swap Controllers Selection Notes

Select this controller when designing systems requiring simple hot-swap solutions for voltages up to 72V. It is suitable for applications needing adjustable current limiting and robust overcurrent protection without complex external circuitry. Consider the SOT-23-6 package constraints for thermal management.

Hot Swap Controllers Part Context

Part of the Simple Swapper family, the MAX5903 series simplifies hot-swap design by integrating control logic and gate drive. It complements similar models like the MAX5902, offering a compact solution for protecting downstream loads during unexpected power insertion events in industrial and communication equipment.

Hot Swap Controllers Replacement Considerations

The MAX5902 serves as a functional substitute within the same family, sharing identical operational principles and pinout compatibility. Verify that the replacement part supports the required voltage range and current limit adjustments for the specific application.