MAX5988BETP+

Overview

The MAX5988BETP+ is a hot-swap voltage controller designed for powered devices with an integrated regulator. It enables safe insertion and removal of circuit cards into live backplanes without causing power supply glitches. The device limits inrush current during startup and provides overcurrent protection via a circuit-breaker function, which is disabled initially to allow full load charging. It operates from +9V to +72V and requires only an external P-channel MOSFET.

Feature Summary

• Enables safe hot-plugging of circuit cards into live backplanes
• Limits inrush current to protect the power supply rail
• Provides overcurrent protection with a circuit-breaker function
• Requires minimal external components, primarily an external P-channel MOSFET

Applications

• Server and storage system backplane interfaces
• Telecommunications equipment power modules
• Industrial control board insertion systems
• High-reliability computing hardware expansion slots

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to potential counterfeit risks. Confirm RoHS compliance status and lead-free packaging specifications against current datasheet revisions. Check for obsolescence notices or lifecycle changes as this product may be subject to discontinuation. Ensure the external P-channel MOSFET selection matches the controller's gate drive requirements and voltage ratings.

Selection Notes

Select this controller when operating voltages range between +9V and +72V and minimal external component count is required. Ensure the application demands precise inrush current limiting to prevent backplane voltage droop. Verify that the external MOSFET can handle the peak current capabilities defined by the controller's threshold settings. Consider thermal dissipation requirements for the MOSFET under sustained load conditions.

Part Context

Part of the MAX5902/MAX5903 family of simple swapper hot-swap controllers. Designed for high-voltage applications requiring robust protection against electrical faults during module insertion. Integrates control logic to manage MOSFET gate drive and fault detection without complex external circuitry.

Replacement Considerations

• MAX5988CETP+