DAK-68A Power Integrations, DAK-68A Datasheet - Page 29

• 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

Typical Performance Characteristics (cont.)
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Figure 44. Max. Duty Cycle Reduction Onset Threshold
Figure 46. Remote OFF DRAIN Supply Current vs. Temperature.
EXTERNAL CURRENT LIMIT Pin Current (μA)
Figure 42. EXTERNAL CURRENT LIMIT Pin Voltage vs. Current
1.2
1.0
0.8
0.6
0.4
0.2
0
1.2
1.0
0.8
0.6
0.4
0.2
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
-50 -25
-50 -20
-250
0
Current vs. Temperature.
-225
V
-200 μA
Junction Temperature (°C)
Junction Temperature (°C)
X
-200
= 1.375 - ⏐I
0
0
-175
≤
I
X
25
25
-150
≤
X
-25 μA
⏐x 843 kΩ
-125
50
50
-100
75 100 125 150
75 100 125 150
-75
-50
-25
0
Figure 47. Breakdown Voltage vs. Temperature.
Figure 43. CONTROL Pin Current at Minimum Duty
Figure 45. I
1.1
1.0
0.9
1.2
1.0
0.8
0.6
0.4
0.2
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
-50 -25
-50 -25
0
Cycle vs. Temperature.
V
C
C
vs. DRAIN Voltage.
Junction Temperature (°C)
= 5 V
Junction Temperature (°C)
10
0
DRAIN Voltage (V)
0
20
25
25
50
30
50
DPA422-426
75 100 125 150
75 100 125 150
40
50
60
Rev. S 12/07
29