MIC2582 Datasheet, PDF (21/22 Pages) Micrel Semiconductor – Single Channel Hot Swap Controllers

MIC2582/MIC2583
Power MOSFET, timer(s), and feedback network connec-
tions. The feedback network resistor values are selected for
a 12V application. Many hot swap applications will require
load currents of several amperes. Therefore, the power (V_CC
and Return) trace widths (W) need to be wide enough to allow
the current to flow while the rise in temperature for a given
copper plate (e.g., 1oz. or 2oz.) is kept to a maximum of
10°C~25°C. Also, these traces should be as short as possible
in order to minimize the IR drops between the input and the
load. For a starting point, there are many trace width calcu-
lation tools available on the web such as the following link:
http://www.aracnet.com/cgi-usr/gpatrick/trace.pl
Micrel
Finally, the use of plated-through vias will be needed to make
circuit connections to power and ground planes when utilizing
multi-layer PC boards.
MOSFET and Sense Resistor Vendors
Device types and manufacturer contact information for power
MOSFETs and sense resistors is provided in Table 4. Some
of the recommended MOSFETs include a metal heat sink on
the bottom side of the package. The recommended trace for
the MOSFET Gate of Figure 11 must be redirected when
using MOSFETs packaged in this style. Contact the device
manufacturer for package information.
MOSFET Vendors
Vishay (Siliconix)
International Rectifier
Fairchild Semiconductor
Philips
Hitachi
Key MOSFET Type(s)
Si4420DY (SO-8 package)
Si4442DY (SO-8 package)
Si4876DY (SO-8 package)
Si7892DP (PowerPAK™ SO-8)
IRF7413 (SO-8 package)
IRF7457 (SO-8 package)
IRF7601 (SO-8 package)
FDS6680A (SO-8 package)
PH3230 (SOT669-LFPAK)
HAT2099H (LFPAK)
Applications*
I_OUT ≤ 10A
I_OUT = 10-15A, V_CC < 3V
I_OUT ≤ 5A, V_CC ≤ 5V
I_OUT ≤15A
I_OUT ≤ 10A
I_OUT = 10-15A
I_OUT ≤ 5A, V_CC < 3V
I_OUT ≤ 10A
I_OUT ≥ 20A
I_OUT ≥ 20A
Contact Information
www.siliconix.com
[phone]
www.irf.com
[phone]
www.fairchildsemi.com
[phone]
www.philips.com
www.halsp.hitachi.com
[phone]
* These devices are not limited to these conditions in many cases, but these conditions are provided as a helpful reference for customer applications.
Resistor Vendors
Vishay (Dale)
IRC
Sense Resistors
Contact Information
“WSL” Series
www.vishay.com/docswsl_30100.pdf
[phone]
“OARS” Series
“LR” Series
(second source to “WSL”)
www.irctt.com/pdf_files/OARS.pdf
www.irctt.com/pdf_files/LRC.pdf
[phone]
Table 4. MOSFET and Sense Resistor Vendors
April 2003
21
MIC2582/MIC2583