DAK-68A Power Integrations, DAK-68A Datasheet - Page 20

• Manufacturer Part Number: DAK-68A
• Description: KIT DESIGN ACCELERATOR POE CONV
• Manufacturer: Power Integrations
• Series: DPA-Switch®r

Specifications of DAK-68A

• Main Purpose: Special Purpose DC/DC, Power Over Ethernet
• Outputs And Type: 1, Non-Isolated
• Power - Output: 6.6W
• Voltage - Output: 3.3V
• Current - Output: 2A
• Voltage - Input: 36 ~ 57V
• Regulator Topology: Flyback
• Frequency - Switching: 400kHz
• Board Type: Bare (Unpopulated) and Fully Populated
• Utilized Ic / Part: DPA423, DPA424, DPA425
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Other names: 596-1007

Rev. S 12/07
Figure 28. Layout Considerations for DPA-Switch Using R Package.
Figure 29. Layout Considerations for DPA-Switch Using G Package.
20
DPA422-426
TOP VIEW
DC
In
TOP VIEW
+
-
V
DC
+
In
-
Solder Side
Component Side
Via between board layers
Maximize hatched copper area for optimum heat sinking
V
Top Side PCB
Bottom Side PCB
Maximize hatched copper area for optimum heat sinking
Via between board layers
V
DPA-Switch
(Two sided printed circuit board)
S
C
V
DPA-Switch
S
L
V
V
V
C
D
X
S
L
D
X
V
-
S
F
V
V
V
V
coupler
Opto-
Transformer
coupler
Opto-
m
DPA-Switch Heatsink
T
a
n
o
e
s
r
f
r
r
V
V
V
Bottom Diode
PI-3805-012904
Heatsink
+
(Coupled)
-
Output
Diode
Inductor
Out
DC
V
V
V
PI-2883-060602
Out
DC
+
-
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