TNY264_1 POWERINT [Power Integrations, Inc.], TNY264_1 Datasheet - Page 13

• Manufacturer Part Number: TNY264_1
• Description: Generic PCB for DVD Player using TinySwitch-II
• Manufacturer: POWERINT [Power Integrations, Inc.]

DER-9
6.4 Transformer Electrical Diagram
6.5 Cross Regulation
The extremes of voltages were measured in the actual DVD player, while going through
start/stop/pause/load/eject cycles.
6.6 Design Option with EEL25 - Spreadsheet
The power supply was designed using an EE19 core. It is a smaller and lower cost core
than the EEL25 that this generic PCB layout uses. However, an EEL25 can also be used
for the design.
The design spreadsheet for an EEL25 is provided below. The turns ratio, Vor, Krp and
output power remain the same. Note that the EMI windings have to be re-tuned since the
core has changed.
Page 13 of 26
Output
+12 V
-12 V
3.3 V
5 V
W2
Primary
W1
Bias
W3
Shield
Generic PCB for DVD Player using TinySwitch-II
107T #36 AWG
53T #36 AWG
4T #28 AWG x 5
Figure 4 –Transformer Electrical Diagram
NC
5
1
4
1
3
Minimum
-13.32V
12.56V
3.28 V
5.20 V
14T #28 T.I.W
2T #29 T.I.W x 2
8T #29 T.I.W x 2
Tel: [phone] Fax: [phone]
4T #25 T.I.W x 2
Maximum
-12.92 V
12.92V
5.12 V
3.35 V
9
10
7
6
8
Power Integrations
+12 V
W6
+5 V
W5
+3.3 V
W4
-12 V
W7
www.powerint.com
February 4, 2004
Tolerance
+/- 1.06%
+/- 0.79%
+/- 1.01%
+/- 1.52%