IRISMPS5 IRF [International Rectifier], IRISMPS5 Datasheet - Page 3

• Manufacturer Part Number: IRISMPS5
• Description: IRISMPS5 DEMO BOARD USER GUIDE
• Manufacturer: IRF [International Rectifier]

PHYSICAL LAYOUT
The board layout of the IRISMPS5 Demo board is shown in Figure 2. The PCB is a double–sided
FR4 type ( 2oz. copper thickness).
The input of the primary section is consist of the AC input connector, fuse and EMI filter section
which are located at the right side of the board, arranged in a straight forward direction.
Most parts of the primary section ( high voltage area ) are surrounded by the primary heat sink
to which the IRIS4015 integrated switcher is attached with insulation pad. Primary section
also includes the bridge rectifier DB1 and primary bulk cap/s (C5 or C5A//C5B) and primary
side and bias winding of the power transformer.
The major parts in the secondary section are the DC output connector, pi-filter, precision
reference voltage IC U2, secondary heat sink to which the output rectifier is attached with
thermal grease.
The output connector is at the leftmost part of the board. The output is filtered using a pi-filter
consist of low impedance e-caps C13A - C ,inductor L3 and e-cap C15. A ceramic capacitor C16
is located at the backside of the board. This c-cap is positioned nearest at output connector
pads to minimize switching noise.
REFERENCE DEMO BOARD
DOCUMENT Name : IRISMPS5_USERGUIDE_Rev2
DATE : 5/28/2004
Figure 2. – Component layer of IRISMPS5 demo board with physical boundary
and dimensions.
www.irf.com
MODEL : IRISMPS5
PN:1950-1001_Rev.2
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IRISMPS5