TNY266P_1 POWERINT [Power Integrations, Inc.], TNY266P_1 Datasheet - Page 17

• Manufacturer Part Number: TNY266P_1
• Description: 4.9W DVD power supply
• Manufacturer: POWERINT [Power Integrations, Inc.]

DER-10
10.4 Cross Regulation
Minimum and Maximum output voltages were recorded for each output, while cycling the
unit on/off, start/stop, pause/run, chapter jump, and fast forward/rewind. The test was
done at room temperature, 90 Vac, 115 VAC 132 Vac, 180 Vac, 230 Vac, 265 Vac input.
Note the tight regulation of the PI 3.6V output in spite of the low-cost, simple Zener
regulation. This is possible with TinySwitch-II because of its unique feedback scheme.
Thermal Performance
Note: The Power Supply was installed in the DVD player enclosure. The DVD player was
playing a DVD. Temperature rise is less than 25 °C
11 Minimum Operating Voltage and Peak Power Margin
The unit is capable of starting and running as low as 60 Vac in spite of the small total
input capacitance of 32uf. This indicates plenty of margin for the DVD player’s peak
power requirements, as flyback power supplies deliver less maximum power when the
AC input voltage is low.
Page 17 of 22
Output
+12 V
-12 V
3.6 V
5 V
Ambient (Deg.C)
Transformer (T1)
TNY266 (U1)
Rectifier (D8)
4.9W DVD power supply using TNY266P
Minimum
-12.48
3.644
11.68
Item
4.96
Temperature (°C)
90 VAC
Tel: [phone] Fax: [phone]
Maximum
25
35
48
38
-12.40
12.56
3.848
5.04
265VAC
25
38
53
51
Power Integrations
www.powerint.com
+6.89 / +1.22%
+0.80 / -0.80%
+4.67 / -2.67%
+4.00 / -3.33%
February 4, 2004
Tolerance