TNY266P_1

Manufacturer Part NumberTNY266P_1
Description4.9W DVD power supply
ManufacturerPOWERINT [Power Integrations, Inc.]
TNY266P_1 datasheet
 


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Design Example Report
Title
4.9W power supply using TNY266P
Input: 90 – 265 VAC
Specification
Output: 5V/1.5A, 3.3V/1.5A, 12V/0.5A,
-12V/15mA
Application
DVD Player
Author
Power Integrations Applications Department
Document
DER-10
Number
Date
February 4, 2004
Revision
1.0
Summary and Features
• Low cost
• no common-mode choke
• no Y-cap
• no X-cap
• low EMI even with output grounded
• good output cross-regulation even with no TL431
• ~ 200 mW input power during standby using low-cost “DC Switch”
The products and applications illustrated herein (including circuits external to the products and transformer
construction) may be covered by one or more U.S. and foreign patents or potentially by pending U.S. and foreign
patent applications assigned to Power Integrations. A complete list of Power Integrations’ patents may be found
at www.powerint.com.
5245 Hellyer Avenue, San Jose, CA 95138 USA.
Tel: +1 408 414 9200 Fax: +1 408 414 9201
Power Integrations
www.powerint.com

TNY266P_1 Summary of contents

  • Page 1

    Design Example Report Title 4.9W power supply using TNY266P Input: 90 – 265 VAC Specification Output: 5V/1.5A, 3.3V/1.5A, 12V/0.5A, -12V/15mA Application DVD Player Author Power Integrations Applications Department Document DER-10 Number Date February 4, 2004 Revision 1.0 Summary and Features ...

  • Page 2

    DER-10 4.9W DVD power supply using TNY266P 1 Introduction................................................................................................................. 3 2 Photograph................................................................................................................. 4 3 Power Supply Specification ........................................................................................ 5 4 Schematic................................................................................................................... 6 5 Circuit Description ...................................................................................................... 7 5.1 Input EMI Filtering ............................................................................................... 7 5.2 Primary Clamp Snubber ...................................................................................... 7 5.3 ...

  • Page 3

    DER-10 4.9W DVD power supply using TNY266P 1 Introduction This document is an engineering report describing an 4.9W (8.5 W peak) multiple output power supply utilizing a TNY266P for a DVD player. This design is low cost and meets EMI ...

  • Page 4

    DER-10 4.9W DVD power supply using TNY266P 2 Photograph Note the following: • Does not use common-mode choke, X-cap, nor Y-cap • Uses little board space • Does not use a heatsink • Uses small transformer: EE25L • Uses small ...

  • Page 5

    DER-10 4.9W DVD power supply using TNY266P 3 Power Supply Specification Description Input Voltage Frequency No-load Input Power (230 VAC) Output Output Voltage 1 Output Ripple Voltage 1 Output Current 1 Output Voltage 2 Output Ripple Voltage 2 Output Current ...

  • Page 6

    DER-10 4.9W DVD power supply using TNY266P 4 Schematic Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com Figure 2 – Schematic. February 4, 2004 Page ...

  • Page 7

    DER-10 4.9W DVD power supply using TNY266P 5 Circuit Description 5.1 Input EMI Filtering C1, and C2 are the bulk capacitors. Together with L1, they form the EMI filter. TinySwitch-II’s built-in frequency jitter helps achieve low EMI in spite of ...

  • Page 8

    DER-10 4.9W DVD power supply using TNY266P 6 PCB Layout Note: This is a generic PCB for multiple output supplies of different output configurations. In this application, the following components are not stuffed: C15, C16, C17, C18, C20, L2, Q1, ...

  • Page 9

    DER-10 4.9W DVD power supply using TNY266P 7 Bill Of Materials Item Qty Reference C19 5 1 C12 C8, C10 ...

  • Page 10

    DER-10 4.9W DVD power supply using TNY266P 8 Transformer Specification 8.1 Electrical Diagram W2 Primary W3 Shield W1 Bias 8.2 Electrical Specifications Electrical Strength Primary Inductance Resonant Frequency Primary Leakage Inductance 8.3 Materials Item [1] Core: EEL25, TDK Gapped for ...

  • Page 11

    DER-10 4.9W DVD power supply using TNY266P [8] Teflon [9] Copper Tape 2.0 mils thick wide. [10] Varnish 8.4 Transformer Build Diagram - 8.5 Copper Foil ...

  • Page 12

    DER-10 4.9W DVD power supply using TNY266P 8.6 Transformer Construction Bobbin Set Up Set up the bobbin with its pin1 to pin7 oriented to the left hand side. Orientation Apply 3.0 mm margin at each side of bobbin using item ...

  • Page 13

    DER-10 4.9W DVD power supply using TNY266P Transformer Spreadsheets 9 ACDC_TNY- INPUT INFO OUTPUT II_Rev1_1_032701 Copyright Power Integrations Inc. 2001 ENTER APPLICATION VARIABLES VACMIN 90 VACMAX 265 8.55 n 0. CIN ...

  • Page 14

    DER-10 4.9W DVD power supply using TNY266P VMIN VMAX CURRENT WAVEFORM SHAPE PARAMETERS DMAX IAVG IP IR IRMS TRANSFORMER PRIMARY DESIGN PARAMETERS LP NP ALG BM BAC ur LG BWE OD INS DIA AWG CM CMA TRANSFORMER SECONDARY DESIGN PARAMETERS ...

  • Page 15

    DER-10 4.9W DVD power supply using TNY266P TRANSFORMER SECONDARY DESIGN PARAMETERS (MULTIPLE OUTPUTS) 1st output VO1 3.6 IO1 0.600 PO1 VD1 0.5 NS1 ISRMS1 IRIPPLE1 PIVS1 CMS1 AWGS1 DIAS1 ODS1 2nd output VO2 12.0 IO2 0.100 PO2 VD2 0.7 NS2 ...

  • Page 16

    DER-10 4.9W DVD power supply using TNY266P 10 Performance Data All measurements performed at room temperature input frequency. 10.1 Standby Input Power during DC switch off operation Note that less than 200mW “DC Switch” power consumption is possible ...

  • Page 17

    DER-10 4.9W DVD power supply using TNY266P 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 ...

  • Page 18

    DER-10 4.9W DVD power supply using TNY266P 12 Output ripple and Noise Waveforms The ripple and noise were measured during normal DVD operation and switches between different functions at room temperature, 90 VAC input. Note the low output ripple and ...

  • Page 19

    DER-10 4.9W DVD power supply using TNY266P Figure 10 – 12V, 1s, 500 mV/div Figure 11 – -12V, 1s, 50 mV/div Page February 4, 2004 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 ...

  • Page 20

    DER-10 4.9W DVD power supply using TNY266P 13 Conducted EMI EMI was tested at room temperature, during normal operation, playing a DVD. Note the lower EMI, especially with output grounded, in spite of having no common mode choke, no Y-cap ...

  • Page 21

    DER-10 4.9W DVD power supply using TNY266P 14 Revision History Date Author February 4, 2004 DZ/JC Page Revision Description & changes 1.0 First Release Tel: +1 408 414 9200 Fax: +1 408 414 9201 February 4, 2004 ...

  • Page 22

    DER-10 4.9W DVD power supply using TNY266P For the latest updates, visit our Web site: www.powerint.com Power Integrations reserves the right to make changes to its products at any time to improve reliability or manufacturability. Power Integrations does not assume ...