MIC2592B Datasheet, PDF (29/31 Pages) Micrel Semiconductor – Dual-Slot PCI Express Hot-Plug Controller

MIC2592B
Micrel
Current Flow
to the Load
W
*SENSE RESISTOR
*POWER MOSFET
(SO-8)
Current Flow
to the Load
S
D
S
D
S
D
W
G
D
Via to GND Plane
Via to signal plane
(GATE pin connection)
***C_FILTER
C1
0.1µF
**C_GS
**R4
15
**C_MILLER
Via to signal plane
(GATE pin connection)
GND 17
Current Flow
from the Load
Via to GND Plane
W
- DRAWING IS NOT TO SCALE AND NOT ALL PINS SHOWN FOR CLARITY-
*See Table 4 for part numbers and vendors
**Optional components
***Recommended components (variable in value, see Functional Description and Applications Information)
Trace width (W) guidelines given in "PCB Layout Recommendations" section of the datasheet
12V(Slot B) is illustrated in this example. A similar layout is suggested for the 3V supply and both slots
Figure 15. Suggested PCB Layout for Sense Resistor, Power MOSFET, and Capacitors
March 2005
29
M9999-033105