MIC2584_05 Datasheet, PDF (1/28 Pages) Micrel Semiconductor – Dual-Channel Hot Swap Controller/Sequencer

MIC2584/2585
Micrel
MIC2584/MIC2585
Dual-Channel Hot Swap Controller/Sequencer
General Description
The MIC2584 and MIC2585 are dual-channel positive volt-
age hot swap controllers designed to facilitate the safe
insertion of boards into live system backplanes. The MIC2584
and MIC2585 are available in 16-pin and 24-pin TSSOP
packages, respectively. Using a few external discrete com-
ponents and by controlling the gate drives of external N-
Channel MOSFET devices, the MIC2584/85 provides inrush
current limiting and output voltage slew rate control in harsh,
critical power supply environments. Additionally, the MIC2585
provides output turn-on sequencing and output tracking
during turn-on and turn-off. In combination, the devices’
many features provide a simplified, robust solution for many
network applications to meet the power sequencing and
protection requirements of multiple-voltage logic systems.
Features
• 1.0V 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
• Dual-level overcurrent fault sensing eliminates false
tripping
• Fast response to short circuit conditions (< 1µs)
• Two sequenced output mode selections
(MIC2585 only)
• ∆250mV supply tracking mode during turn-on/turn-off
(MIC2585 only)
• Overvoltage and undervoltage output monitoring
(Overvoltage for MIC2585 only)
• Undervoltage lockout protection
• /FAULT status output
• Power-On Reset and Power-Good status output
(Power-Good for MIC2585 only)
Applications
• RAID systems
• Network servers
• Base stations
• Network switches
• Hot-board insertion
Ordering Information
Part Number
Standard
Pb-Free
MIC2584-xBTS
MIC2584-xYTS
MIC2585-1xBTS
MIC2585-2xBTS
MIC2585-1xYTS
MIC2585-2xYTS
* Contact Micrel for availability.
Output Sequencing
N/A
OUT2 follows OUT1
OUT1 follows OUT2
Fast Circuit Breaker
Threshold
x = J, 100mV
x = K, 150mV *
x = L, 200mV *
x = M, Off *
Package
16-pin TSSOP
24-pin TSSOP
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 [phone] • fax + 1 [phone] • http://www.micrel.com
March 2005
1
MIC2584/2585