RD6 POWERINT | Alldatasheet
Document overview
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Technical content
Output Voltage (I = 3.0 A) (I = 0.1 A)o RD6 85 to 265 VAC Input, 15W Output Product Highlights Low Cost Production Worthy Reference Design
- Complete self-powered USB power supply
- Supports 4 ports and hub controller
- Single sided board
- Fully assembled and tested
- Easy to evaluate and modify
- Extensive performance data
- Over 69% efficiency Fully Protected by TOPSwitch-II
- Primary safety current limit
- Output short circuit protection
- Thermal shutdown protects entire supply Designed for World Wide Operation
- Designed for IEC/UL safety requirements
- Meets VDE Class B EMI specifications
Description
The RD6 reference design board is an example of a low cost production worthy design for a self-powered, 4-port USB hub. The design is a complete solution for powering hubs found in products such as monitors and printers. A total of 15 W of power is delivered through two outputs. The main output supplies 3 A at 5 V. This meets the USB specification of 500 mA for each port (4 port total) with additional power available for a 5 V hub controller. A second 3.3 V (100 mA) output provides power for low voltage hub controllers. The RD6 utilizes the TOP223Y member of the TOPSwitch-II family of Three-terminal Off-line PWM Switchers from Power Integrations. It is intended to help TOPSwitch users to develop their products quickly by providing a production ready design which needs little or no modification to meet system requirements. USB Reference Design Board TOPSwitch-II March 1998 Figure 1. RD6 Overall Physical Dimensions. Figure 2. Table of Key Electrical Parameters.
5 V ± 4%
3.3 V ± 3%
Figure 4. Component Legend of the RD6.
265 VAC input voltage, suitable for powering a USB hub with
Figure 3. Schematic Diagram of the 15 W RD6 Power Supply.
3.15 AJ1
250 VAC
**Figure 5. Parts List for the RD6 (* Two Series-Connected 2.2 nF, Y2 Capaciors such as Murata P/N DE7100F222MVA1-KC can replace**
Figure 12. Turn On Delay
6 OUTPUT
Figure 13. Output Voltage Turn On Transient vs Soft Start Capacitor Figure 15. 5 V Switching Frequency Ripple, 115 VAC Input, 15.3 W Output Figure 14. 5V LineFrequency Ripple, 115 VAC Input, 15.3 W Output
Figure 19. 5 V Transient Load Response (75% to 100% Load)
100 VDE B Limit
Figure 20. EMI Characteristics at 115 VAC Input Figure 21. EMI Characteristics at 230 VAC Input
3000 VAC
700 KHz (min)
60 Hz, 1 minute,
Figure 22. Electrical specification of transformer TRD6
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 23. Construction details of transformer TRD6
Figure 24. Electrical specification of transformer TRD6-1
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. Figure 25. Construction details of transformer TRD6-1
B KOREA Power Integrations International Holdings, Inc. Rm# 402, Handuk Building, 649-4 Yeoksam-Dong, Kangnam-Gu, Seoul, Korea Phone: +82•2•568•7520 TAIWAN Power Integrations International Holdings, Inc. 2F, #508, Chung Hsiao E. Rd., Sec. 5, Taipei 105, Taiwan Phone: +886•2•727•1221 Fax: +886•2•727•1223 WORLD HEADQUARTERS 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 EUROPE & AFRICA Power Integrations (Europe) Ltd. Mountbatten House Fair Acres Windsor Berkshire SL4 4LE, United Kingdom 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 INDIA (Technical Support) Innovatech #1, 8th Main Road Vasanthnagar Bangalore 560052, India Phone: +91•80•226•6023 Fax: +91•80•228•2191 JAPAN Power Integrations, K.K. Keihin-Tatemono 1st Bldg. 12-20 Shin-Yokohama 2-Chome, Kohoku-ku, Yokohama-shi, Kanagawa 222, Japan ASIA & OCEANIA For Your Nearest Sales/Rep Office Please Contact Customer Service Phone: +1•408•523•9265 Fax: +1•408•523•9365 APPLICATIONS HOTLINE World Wide +1•408•523•9260 APPLICATIONS FAX Americas +1•408•523•9361 Europe/Africa +44•(0)•1753•622•209 Asia/Oceania +1•408•523•9364