High Isolation Power Transformers EP7 Platform SMD Push Pull Converter Transformer Basic insulation for isolated power supply driver 4.0mm Creepage 4KVrms Isolation (600Vrms continuous) Electrical Specifications 25C - Operating Temperature -40C to +125C Inductance Leakage 1 Part Capacitance DCR (1-3) DCR (4-6) MAX (1-3) Turns Ratio Isolated Voltage (1-3) Inductance Number (pF MAX) ( MAX) ( MAX) (V-sec Max) (1:3) (6:4) (Vrms) (mH 45%) (uH MAX) PH9184.011NL 12.2 12.5 28.5 1.9 2.4 266 1CT : 1CT PH9184.021NL 15.0 15.0 26.5 2.1 1.4 296 2CT : 1CT 4000 PH9184.034NL 6.8 5.0 31.5 1.4 2.2 200 3CT : 4CT Notes: 1. The ET Max is calculated to limit the core loss and temperature rise at 100KHz based on Where ET is the applied Volt Second, ET Max is the rated Volt Second for a bipolar flux swing of 180mT Peak. 180mT flux swing 2. For Push-Pull topology, where the voltage is applied across half the primary winding C. To calculate temperature rise, use the following formula: turns, the ET needs to be derated by 50% for the same flux swing. Temperature Rise (C) = 90 * (Core Loss(W) + Copper Loss (W)) 3. The applied ET may need to be further derated for higher frequencies based on the 4. Optional Tape & Reel packing can be ordered by adding a T suffix to the part number temperature rise which results from the core and copper losses. (i.e. PH9184.011NL becomes PH9184.011NLT). Pulse complies to industry standard tape A. To calculate total copper loss (W), use the following formula: and reel specification EIA481. 2 Copper Loss (W) = Irms Primary * DCR Primary + Irms 5. The NL suffix indicates an RoHS-compliant part number. 2 Secondary *DCR Secondary 6. The temperature of the component (ambient plus the temperature rise) must be B. To calculate total core loss (W), use the following formula: within the stated operating temperature range. 1.67 2.53 Core Loss (W) = 4.40E-10 * (Frequency in kHz) * (180 * ET/ET Max ) Mechanical Schematic PH9184.XXXXNL 6 4 6 4 1 6 .100 2.54 Secondary Primary PH9185.XXXNL PH9184.XXXNL .100X2 2.54X2 .370 .520 5 2 9.40 13.21 Secondary Primary .047 1.20 3 DATE CODE CTRY MFG 4 1 3 SCHEMATIC 3 1 SUGGESTED LAND PATTERN (.394) .394MAX 10.00 ( 10.00 ) Weight ...........................2.6grams 2X.100 2.54 =.200.008 5.08.20 Tape & Reel ........................150/reel 1 3 Tray ......................................80/tray .492 MAX Inches Dimensions: 12.50 MAX mm Unless otherwise specified, 1 3 .010 .016.002 .079 REF 6 4 all tolerances are .005 .13 (.378) .40.05 2.00 REF 6 PLACES 0,25 9.60 .100.008 .079 REF .512 MAX 2.54.20 2.00 REF 13.00 MAX 1 power.pulseelectronics.com P782. D (04/19) High Isolation Power Transformers EP7 Platform SMD Application PH9184NL is a series of high isolation power supply transformer drivers. Intended to operate in a fixed duty cycle Push Pull topology, it is a part of a low cost solution for delivering lower power (up to 3W) from a low voltage source. A typical implementation would be an isolated RS-485/RS-232 power supply driver circuit, the design is compatible with the MAXIM MAX253 IC. A schematic diagram for the Push Pull converter topology is given below. V IN PH9184 V CC D1 VOUT DRIVER IC D2 GND For a fixed 50% duty cycle mode of operation, the output voltage is simply determined by the input voltage and turns ratio. So, with the available turns ratios, a variety of output voltages can be selected. This transformer design conforms to UL60950-1 2 edition with basic insulation for a working voltage up to 300Vac. 3.2mm creepage and 3000Vrms isolation voltage is guaranteed to meet this requirement. The actual isolation and creepage capability of the design exceeds these UL ratings. MAXIM is a registered trademark of Maxim Integrated Products. For More Information Pulse Worldwide Pulse Europe Pulse China Headquarters Pulse North China Pulse South Asia Pulse North Asia Headquarters Pulse Electronics GmbH Pulse Electronics (ShenZhen) CO., LTD Room 2704/2705 3 Fraser Street 1F., No.111 Xiyuan Rd 15255 Innovation Drive Ste 100 Am Rottland 12 D708, Shenzhen Academy of Super Ocean Finance Ctr. 0428 DUO Tower Zhongli City San Diego, CA 92128 58540 Meinerzhagen Aerospace Technology, 2067 Yan An Road West Singapore 189352 Taoyuan City 32057 U.S.A. Germany The 10th Keji South Road, Shanghai 200336 Taiwan (R.O.C) Nanshan District, Shenzhen, China P.R. China 518057 Tel: 858 674 8100 Tel: 49 2354 777 100 Tel: 86 755 33966678 Tel: 86 21 62787060 Tel: 65 6287 8998 Tel: 886 3 4356768 Fax: 858 674 8262 Fax: 49 2354 777 168 Fax: 86 755 33966700 Fax: 86 2162786973 Fax: 65 6280 0080 Fax: 886 3 4356820 Performance warranty of products offered on this data sheet is limited to the parameters specified. Data is subject to change without notice. Other brand and product names mentioned herein may be trademarks or registered trademarks of their respective owners. Copyright, 2019. Pulse Electronics, Inc. All rights reserved. 2 power.pulseelectronics.com P782. D (04/19)