MIC2587R-2BM

Hot Swap Controllers Overview

The MIC2587R-2BM is a single-channel positive voltage hot swap controller designed for safe board insertion and removal in live backplane systems. It operates from +10V to +80V with 100V absolute maximum rating. The device acts as a controller for external N-channel power MOSFETs, providing inrush current control and output voltage slew rate control. Key electrical parameters include an operating supply voltage range of 10V to 80V, a supply current of 2 mA, and an industrial temperature range of -40°C to +85°C. It features programmable current limit with analog foldback and fast responding circuit breaker protection.

Hot Swap Controllers Feature Summary

• Active current regulation minimizes inrush current during board insertion
• Electronic circuit breaker provides overcurrent fault protection with auto-retry functionality
• Programmable input undervoltage lockout ensures stable operation under varying supply conditions
• Open-drain Power-is-Good output signals status for enabling downstream DC/DC converters

Hot Swap Controllers Applications

• General-purpose hot board insertion in telecom systems
• +12V/+24V/+48V distributed power systems
• +24V/+48V industrial and alarm systems
• High-voltage, high-side electronic circuit breaker applications

Hot Swap Controllers Procurement Notes

Verify the suffix 'R' indicates auto-retry fault handling and '-2' denotes active-low Power-is-Good output. Confirm package type matches design requirements. Check RoHS compliance status against specific manufacturing lot dates. Ensure external MOSFET selection aligns with the controller's drive capabilities and thermal constraints.

Hot Swap Controllers Selection Notes

Select this component when auto-retry after fault is required instead of latch-off. The active-low output configuration suits systems where low signal indicates valid power. Verify that the external N-channel MOSFET can handle the peak load currents defined by the programmable current limit settings. Ensure the input voltage range covers the system's nominal and transient supply levels.

Hot Swap Controllers Part Context

This part belongs to the MIC2587 family of single-channel hot swap controllers manufactured by Microchip Technology (formerly Micrel). It is functionally equivalent to the LT1641 but offers integrated auto-retry features. The device simplifies power distribution design by managing inrush and fault conditions without complex external logic.

Hot Swap Controllers Replacement Considerations

MIC2587-2BM is a direct pin-for-pin functional substitute differing only in latch-off versus auto-retry behavior. LT1641 serves as a legacy equivalent but lacks the integrated auto-retry feature. Verify pin compatibility and fault handling requirements before substitution.