MIC2582/MIC2583
Single-Channel Hot Swap Controllers
General Description
The MIC2582 and MIC2583 are single-channel posi...
MIC2582/MIC2583
Single-Channel Hot Swap Controllers
General Description
The MIC2582 and MIC2583 are single-channel positive
voltage hot swap controllers designed to allow the safe insertion of boards into live system backplanes. The MIC2582 and MIC2583 are available in 8-pin SOIC and 16-pin QSOP packages, respectively. Using a few external components and by controlling the gate drive of an external N-Channel
MOSFET device, the MIC2582/83 provide inrush current limiting and output
voltage slew rate control in harsh, critical power supply environments. Additionally, a circuit breaker function will latch the output
MOSFET off if the current-limit threshold is exceeded for a determined period. The MIC2583R option includes an auto-restart function upon detecting an over current condition.
Datasheets and support documentation are available on Micrel’s web site at: www.micrel.com.
Features
MIC2582: Pin-for-pin functional equivalent to the LTC1422
2.3V to 13.2V supply
voltage operation Surge
voltage protection up to 20V Current regulation limits inrush current regardless of
load capacitance Programmable inrush current limiting Electronic circuit breaker Optional dual-level overcurrent threshold detects
excessive load faults Fast response to short-circuit conditions (<1µs) Programmable output under-
voltage detection Under
voltage Lockout (UVLO) protection Auto-restart function (MIC2583R) Power-on-Reset (POR) status output Power good (PG) status output (MIC25...