Microchip Technology MIC2586R-2BM

Description
The MIC2586 and MIC2586R are single-channel positive voltage hot swap controllers/sequencers designed for safe insertion and removal of boards in live backplane systems. They use external N-channel power MOSFETs for inrush current and output voltage slew rate control. Overcurrent fault protection is provided by programmable analog foldback current-limit circuitry with an overcurrent filter. These protection circuits limit power dissipation of the external MOSFET to ensure it remains within its safe operating area during fault conditions.
The MIC2586 features a circuit breaker function that latches the output MOSFET off if the load current exceeds the current-limit threshold for the duration of the programmable timer. The MIC2586R attempts to restart power after a load current fault with a low duty cycle to prevent MOSFET overheating.
Each device provides either an active-HIGH (-1BM) or an active-LOW (-2BM) "power-is-good" (PWRGD) signal. The MIC2586 and MIC2586R offer up to three time-sequenced PWRGD outputs for controlling DC/DC converter circuits or power modules.

Features
Operates from 10V to 80V with 100V ABS MAX operation
Industrial temperature specifications at Voc = 24V and Voc = 48V
Programmable current limit with analog foldback
Active current regulation minimizes inrush current
Electronic circuit breaker for overcurrent fault protection
Output latch off (MIC2586) or output auto-retry (MIC2586R)
Fast responding circuit breaker (<2μs) to short-circuit loads
Programmable input undervoltage lockout
Fault Reporting:
Three open-drain PWRGD outputs for enabling DC/DC converter(s)
Active-HIGH: MIC2586-1/MIC2586R-1
Active-LOW: MIC2586-2/MIC2586R-2

Applications
General-purpose hot board insertion
High-voltage, high-side electronic circuit breaker
12V/ 24V/ 48V distributed power systems
24V/ 48V industrial/alarm systems
Telecom systems
Medical systems