MIC2582_14 Datasheet, PDF (1/27 Pages) Micrel Semiconductor – Single-Channel Hot Swap Controllers

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
 Undervoltage Lockout (UVLO) protection
 Auto-restart function (MIC2583R)
 Power-on-Reset (POR) status output
 Power good (PG) status output (MIC2583 and
MIC2583R)
 /FAULT status output (MIC2583 and MIC2583R)
Applications
 RAID systems
 Base stations
 PC board hot swap insertion and removal
 +12V backplanes
 Network switches
Typical Application
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
May 23, 2014
Revision 5.0