MIC2342-2YTQ Micrel Inc, MIC2342-2YTQ Datasheet - Page 29
MIC2342-2YTQ
Manufacturer Part Number
MIC2342-2YTQ
Description
Dual -Slot PCI Express Hot-Plug Controller
Manufacturer
Micrel Inc
Type
Hot-Swap Controllerr
Datasheet
1.MIC2342-2YTQ.pdf
(32 pages)
Specifications of MIC2342-2YTQ
Applications
General Purpose, PCI Express
Internal Switch(s)
No
Voltage - Supply
3.3V, 12V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
48-TQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
576-2993
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power ground) trace should be the same width as the
positive voltage power traces (input/load) and isolated
from any ground and signal planes so that the
controller’s power is common mode. Also, these traces
should be as short as possible in order to minimize the
IR drops between the input and the load. As indicated in
the Pin Description section, an external connection must
be made that ties together both channel inputs ((+)
Kelvin sense) of each Main power rail (i.e., 3VINA and
3VINB, 12VINA and 12VINB must be externally
connected). These connections should be implemented
directly at the chip. Insure that the voltage drop between
the two (+) Kelvin sense inputs for each rail is no greater
than 0.2mV by using a common power path for the two
inputs (e.g., 12VINA, 12VINB).
plated-through vias will be necessary to make circuit
connection to the power, ground, and signal planes on
multi-layer PCBs.
Micrel, Inc.
June 2008
Figure 12. 4-Wire Kelvin Sense Connections for R
Finally, the use of
SENSE
29
Figure 13. Current Limit Sense Filter for Noisy Systems
MIC2342/2342R
M9999-062008-B