MAX5903ACETT-T

Hot Swap Controllers Overview

The MAX5903ACETT-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 utilizes a single external P-channel MOSFET. The device limits inrush current during startup and provides overcurrent protection via a circuit-breaker function, which remains disabled during the initial power-up phase. It features adjustable undervoltage lockout (UVLO) and is housed in a compact 6-TDFN package.

Hot Swap Controllers Feature Summary

• Eliminates external components except the P-channel MOSFET for simplified design
• Provides inrush current limiting and circuit-breaker overcurrent protection
• Features adjustable undervoltage lockout thresholds

Hot Swap Controllers Applications

• Hot-plugging circuit cards into live backplanes
• Power-supply sequencing applications
• General-purpose hot-swap control

Hot Swap Controllers Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when ordering. Confirm the ACET variant corresponds to the commercial temperature range (-40°C to +85°C). Ensure compatibility with the required 6-TDFN footprint. Check for RoHS compliance status as indicated by the '+' designation in related part numbers. Validate that the supplier source is authorized for Analog Devices or Maxim Integrated products.

Hot Swap Controllers Selection Notes

Select this component for systems requiring simple hot-swap implementation without internal switches. It is suitable for voltages up to 72V. Consider the 6-TDFN package size for space-constrained designs. Verify that the external MOSFET selection aligns with the controller's drive capabilities. Ensure the application does not require the circuit-breaker function to be active immediately at startup.

Hot Swap Controllers Part Context

The MAX5903 belongs to the Simple Swapper family of hot-swap controllers from Maxim Integrated, now part of Analog Devices. This series focuses on minimizing external component counts while providing essential protection features like inrush limiting and overcurrent detection. The ACET suffix denotes the specific package and temperature grade within the broader MAX5903 product line.

Hot Swap Controllers Replacement Considerations

The MAX5902 is a pin-compatible alternative within the same family. Verify if the specific threshold requirements or package variations of the MAX5902 meet the design needs. Both devices share similar functionality but may differ in specific electrical characteristics or availability.