TNY267P_1 POWERINT [Power Integrations, Inc.], TNY267P_1 Datasheet - Page 11

• Manufacturer Part Number: TNY267P_1
• Description: 9W DVD power supply
• Manufacturer: POWERINT [Power Integrations, Inc.]

DER-7
8.5 Copper Foil Preparation
8.6 Winding Instructions
Page 11 of 20
Bobbin Set Up
Orientation
Margin Tape
W1 Bias Winding
Basic Insulation
W2 Two Layers
Primary Winding
Basic Insulation
W3 Copper Shield
Basic Insulation
Margin Tape
W4 3.3 V Winding.
W5 +5V Winding
Basic Insulation
W6 +12 Winding
Basic Insulation
W7 -23 V Winding
W8 F- / F+ Winding
Outer Insulation
Core Assembly
Final Varnish
P in 5
# 2 8 A W G
Set up the bobbin with its pin1 to pin7 oriented to the left hand side.
Apply 3.0 mm margin at each side of bobbin using item [9]. Match combined
height of primary, shield and bias windings.
Start at pin 10 temporally. Wind 14 trifilar turns of item [4] from right to left.
Wind tightly and uniformly across entire width of bobbin. Finish at pin 7 using
item [10] at the finish leads. Flip the starting lead over to pin 6 using item [10]
at the finish lead.
Apply 2 layers of tape item [7]
Start on pin 4 using item [10] at the start leads. Wind 30 bifilar turns of item [3]
from left to right. Wind another 30 turns from right to left in second layer.
Finish on pin 1 using item [10] at the finish leads.
Apply 2 layers of tape item [7]
Start on pin 5 using item [10] at the start leads. Wind 1 turns of copper shield
shown in figure 6. Apply next step tape item[8] first before close this winding
to avoid copper shortage.
Apply 3 layers of tape item [8]
Apply 3.0 mm margin at each side of bobbin using item [9]. Match combines
height of secondary windings.
Start at pin 13 using item [10] at the start leads. Wind 2 trifilar turns of item
[5]. The wires should be tightly and uniformly wound spread across the
bobbin width. Finish on pin 12 using item [4] at the finish leads.
Start on pin 11 using item [10] at the start leads. Wind 1 trifilar turn of item [5].
Wind the wire between 3.3V windings. Finish on pin 13 using item [10] at the
finish leads.
Apply one layer of tape item [7]
Start at pin 8 using item [10] at the start leads. Wind 4 turns of item [4]. Wind
uniformly spread across the bobbin. Finish at pin 11 using item [10] at the
finish leads.
Apply one layer of tape item [7]
Start at pin 12 using item [10] at the start leads. Wind 12 turns of item [4].
Wind from right to left in a uniform and tightly wound spread across the
bobbin width. Finish on pin 14 using item [4] at the finish leads.
Start at pin 10 using item [10] at the start leads. Wind 2 turns of item [4].
Finish at pin 9 using item [10] at the finish leads.
3 Layers of tape [8] for insulation.
Assemble and secure core halves. Item [1]
Dip varnish uniformly in item [12]
9W DVD power supply using TNY267P
Figure 6 – Foil Winding Preparation Diagram.
+ 5 V
O U T
1 T C o p p e r F o il 1 6 m m
0 .1 2 m m T h ic k .
4 5 m m
Tel: [phone] Fax: [phone]
w id e .
Power Integrations
www.powerint.com
February 4, 2004