DESCRIPTION

· The MIC2588 and MIC2594 are single-channel, negative-voltage hot swap controllers designed for safe insertion and removal of circuit boards into live high-voltage system backplanes.

· They feature inrush current limiting, output voltage slew-rate control, and overcurrent fault protection with a programmable threshold.

· These controllers include a 400µs nuisance-trip delay and provide a master Power-Good signal to indicate valid output voltage range.

FEATURES

· Pin-for-pin functional equivalent to LT1640/LT1640A/LT4250.

· Safe insertion and removal from live –48V backplanes.

· Operates from –19V to –80V.

· Electronic circuit breaker function with a 400µs nuisance-trip delay.

· Regulated maximum output current into faults.

· Programmable inrush current limiting and fast response to short circuits (<1µs).

· Programmable undervoltage and overvoltage lockouts (MIC2588-xBM).

· Programmable UVLO hysteresis (MIC2594-xBM).

· Fault reporting with Active-HIGH (-1BM) and Active-LOW (-2BM) Power-Good output signal.

APPLICATIONS

· Central office switching.

· –48V power distribution.

· Distributed power systems.

· Server Networks.