RD5 POWERINT | Alldatasheet
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Technical content
Figure 4. Component Legend of the RD5. Figure 3. Schematic Diagram of the 12V RD5 Power Supply.
3.15 AJ1
250 VAC
turns ratios and value of Zener diode VR2.
**Figure 5. Parts List for the RD5 (* Two Series Connected, 2.2 nF, Y2-Capacitors Such as Murata DE7100F222MVA1-KC can replace C7).** ** T1 is available from Premier Magnetics (714) 362-4211 as P/N POL-12017, and from Coiltronics (561) 241-7876 as P/N CTX00-13742. filtered by D3 and C4 to create a bias voltage to the TOP224P. compensates the control loop. measured with AC voltage applied to the RD5. TOPSwitch minimum duty cycle. show how the efficiency changes with input voltage.
Figure 6. Load Regulation Figure 7. Line Regulation
15 W output is outlined on the non-component side of the board,
build-up effective trace thickness. margins required for safety spacing in a conventional design. to meet international safety standards. the peak of the AC input voltage before TOPSwitch turns on. power supply turns on as shown. range in value from 4.7 uF to 47 uF as shown. voltage is shown in Figure 15 for the same test condition. the response is quick and well damped. in Figure 17 for 115 VAC and Figure 18 for 230 VAC.
Figure 12. Turn On Delay Figure 13. Output Voltage Turn On Transient vs. Soft Start Capacitor Figure 8. Efficiency vs. Input Voltage, 20 W Output Figure 9. Efficiency vs. Input Voltage, 4 W Output Figure 10. Efficiency vs. Output Power, 115 VAC Input Figure 11. Efficiency vs. Output Power, 230 VAC Input
15 OUTPUT
Figure 15. Switching Frequency Ripple, 115 VAC In, 20 W OutputFigure 14. Line Frequency Ripple, 115 VAC In, 20 W Output Figure 16. Transient Load Response (75% to 100% of load)
100 VDE B Limit
Figure 18. EMI Characteristics at 230 VAC Input.Figure 17. EMI Characteristics at 115 VAC Input.
3000 VAC
700 KHz (min)
60 Hz, 1 minute,
Figure 19. Electrical specification of transformer TRD5
Figure 20. Construction details of transformer TRD5.
24 V Double Bifilar
1 layer of 10.8 mm wide polyester tape for basic insulation. across bobbin to form a single layer. Finish on Pin 3. 1 layer of 10.8 mm wide polyester tape for basic insulation. Triple Insulated Wire. Finish on Pins 5 and 6. 3 layers of 10.8 mm wide polyester tape for insulation.
- Triple insulated wire sources.
Furukawa Electric America, Inc.
200 Westpark Drive
Figure 21. Electrical specification of transformer TRD5-1.
Figure 22. Construction details of transformer TRD5-1. insulation. Continue winding remaining primary turns from top to bottom. Finish on Pin 1. Sleeve start and finish with 24 AWG Teflon sleeving. Use 1 layer of 12.2 mm wide tape for basic insulation. from bottom to top. Spread turns evenly across bobbin. Finish on Pin 3. Sleeve start and finish leads with 24 AWG Teflon sleeving. Use 3 layers of 18.2 mm wide polyester tape for reinforced insulation. magnet wire from bottom to top. Spread turns evenly across bobbin. Apply 3 layers of 18.2 mm wide polyester tape for outer insulation. Assemble and secure core halves. Impregnate uniformly with varnish.
A RD5
A KOREA Power Integrations International Holdings, Inc. Rm# 402, Handuk Building, 649-4 Yeoksam-Dong, Kangnam-Gu, Seoul, Korea Phone: +82•2•568•7520 JAPAN Power Integrations, K.K. Keihin-Tatemono 1st Bldg. 12-20 Shin-Yokohama 2-Chome, Kohoku-ku, Yokohama-shi, Kanagawa 222, Japan EUROPE & AFRICA Power Integrations (Europe) Ltd. Mountbatten House Fair Acres Windsor Berkshire SL4 4LE, United Kingdom WORLD HEADQUARTERS NORTH AMERICA - WEST Power Integrations, Inc. 477 N. Mathilda Avenue Sunnyvale, CA 94086 USA Main: +1•408•523•9200 Customer Service: Phone: +1•408•523•9265 Fax: +1•408•523•9365 NORTH AMERICA - EAST & SOUTH AMERICA Power Integrations, Inc. Eastern Area Sales Office
1343 Canton Road, Suite C1
Marietta, GA 30066 USA Phone: +1•770•424•5152 Fax: +1•770•424•6567 Power Integrations reserves the right to make changes to its products at any time to improve reliability or manufacturability. Power Integrations does not assume any liability arising from the use of any device or circuit described herein, nor does it convey any license under its patent rights or the rights of others. PI Logo and TOPSwitch are registered trademarks of Power Integrations, Inc. ©Copyright 1998, Power Integrations, Inc. 477 N. Mathilda Avenue, Sunnyvale, CA 94086 http://www.powerint.com TAIWAN Power Integrations International Holdings, Inc. 2F, #508, Chung Hsiao E. Rd., Sec. 5, Taipei 105, Taiwan Phone: +886•2•2727•1221 Fax: +886•2•2727•1223 INDIA (Technical Support) Innovatech #1, 8th Main Road Vasanthnagar Bangalore 560052, India Phone: +91•80•226•6023 Fax: +91•80•228•2191 APPLICATIONS HOTLINE World Wide +1•408•523•9260 APPLICATIONS FAX World Wide +1•408•523•9361