MIC2587-2YM

Hot Swap Controllers Overview

The MIC2587-2YM is a single-channel positive high-voltage hot-swap controller designed for safe board insertion and removal in live backplane systems. It operates within a supply voltage range of 10V to 80V, with an absolute maximum rating of 100V. The device features programmable current limiting with analog foldback, active current regulation to minimize inrush current, and fast-acting circuit breaker protection against short circuits in under 2µs. It includes programmable input undervoltage lockout (UVLO) and provides an active-low Power-is-Good open-drain output. The component supports latch-off fault behavior and functions as a general-purpose electronic circuit breaker.

Hot Swap Controllers Feature Summary

• Active current regulation minimizes inrush current during board insertion
• Fast responding circuit breaker protects against short circuit loads
• Programmable current limit with analog foldback capability
• Active-low Power-is-Good output for system status reporting

Hot Swap Controllers Applications

• General-purpose hot board insertion
• +12V/+24V/+48V Distributed Power Systems
• +24V/+48V Industrial/Alarm Systems
• Telecom Systems
• Medical Systems

Hot Swap Controllers Procurement Notes

Verify the specific suffix -2YM indicates the active-low Power-is-Good logic level compared to other variants. Confirm the package is 8-SOIC and check RoHS compliance status. Ensure the application requires latch-off fault protection rather than auto-retry functionality associated with the R-series variants.

Hot Swap Controllers Selection Notes

Select this variant when an active-low power good signal is required for downstream DC/DC converter enablement. Compare with MIC2587-1YM if active-high signaling is preferred. Consider MIC2587R variants if automatic retry after fault conditions is necessary instead of manual reset via latch-off.

Hot Swap Controllers Part Context

The MIC2587 series serves as a pin-for-pin functional equivalent to the LT1641. It is part of Microchip's portfolio of hot-swap controllers, originally developed by Micrel Semiconductor. The device integrates high-side switch control capabilities without an internal MOSFET, requiring an external N-channel MOSFET for current handling.

Hot Swap Controllers Replacement Considerations

LT1641 is documented as a pin-for-pin functional equivalent.