RD8 查看數據表（PDF） - Power Integrations, Inc
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RD8 Datasheet PDF : 12 Pages
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elimination of the margins required for safety spacing in a
conventional design.
If a conventional margin wound transformer is desired, the
design of Figures 20-21 can be used. This design (TRD8-1)
uses an EEL16 core and bobbin to accommodate the 6 mm total
creepage distance required to meet international safety standards
RD8
when using magnet wire rather than triple insulated wire. It has
the same pinout and printed circuit foot print as TRD8. The
margin wound transformer is approximately 50% taller than the
triple insulated wire design due to the inclusion of creepage
margins required to meet international safety standards.
105
VIN = 115 VAC
100
95
0
105
100
100
200
300
400
Load Current (mA)
VIN = 230 VAC
95
0
100
200
300
400
Load Current (mA)
Figure 4. Load Regulation.
100
Po = 3 W
80
60
40
20
0
50
100
200
300
Input Voltage (VAC)
Figure 6. Efficiency vs. Input Voltage, 3 W Output.
105
100
95
50
105
PO = 3 W
100 150 200 250 300
Input Voltage (VAC)
100
95
50
PO = 0.6 W
100 150 200 250 300
Input Voltage (VAC)
Figure 5. Line Regulation.
100
Po = 0.6 W
80
60
40
20
0
50
100
200
300
Input Voltage (VAC)
Figure 7. Efficiency vs. Input Voltage, 0.6 W Output.
5 C
3/99
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