dpa422 Power Integrations, Inc., dpa422 Datasheet - Page 28

• Manufacturer Part Number: dpa422
• Description: Highly Integrated Dc-dc Converter Ics For Power Over Ethernet & Telecom Applications
• Manufacturer: Power Integrations, Inc.

Rev. S 12/07
Typical Performance Characteristics (cont.)
28
Figure 36. Frequency vs. Temperature.
Figure 40. Under-Voltage Threshold vs. Temperature.
Figure 38. External Current Limit vs. Temperature with
1.2
1.0
0.8
0.6
0.4
0.2
DPA422-426
1.2
1.0
0.8
0.6
0.4
0.2
0
0
1.2
1.0
0.8
0.6
0.4
0.2
0
-50 -25
-50 -25
-50 -25
R
IL
= 12 kΩ.
Junction Temperature (°C)
Junction Temperature (°C)
Junction Temperature (°C)
0
0
0
25
25
25
50
50
50
75 100 125 150
75 100 125 150
75 100 125 150
Figure 39. Overvoltage Threshold vs. Temperature.
Figure 37. Internal Current Limit vs. Temperature.
Figure 41. LINE-SENSE Pin Voltage vs. Current.
1.2
1.0
0.8
0.6
0.4
0.2
1.2
1.0
0.8
0.6
0.4
0.2
0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
0
-200
-50 -25
-50 -25
-150
LINE-SENSE Pin Current (μA)
Junction Temperature (°C)
Junction Temperature (°C)
-100 -50
0
0
25
25
0
50
50
50 100 150 200 250
75 100 125 150
75 100 125 150
www.powerint.com