High Isolation Power Transformers Toroid Platform SMD Push Pull Converter Transformer 4KVrms Isolation (550Vrms Continuous) Reinforced insulation, 8.5mm Creepage Sidecar Package Patented: US Pat 9,646,755 Inductance (1-3) (H 35%) Part Number Electrical Specifications @ 25C - Operating Temperature -40C to +125C Leakage Inductance Capacitance DCR (1-3) DCR (4-6) (1-3) with (4-6) shorted (1, 2, 3) to (4, 5, 6) ( MAX) ( MAX) (H MAX) (pF MAX) PH9384.011NL 538 0.8 20 PH9384.012NL 538 0.6 30 PH9384.021NL 538 1.6 15 PH9384.034NL 680 0.6 30 PH9384.035NL 680 0.7 30 PH9384.038NL 538 0.7 30 PH9384.043NL 538 0.8 20 PH9384.083NL 538 2.0 15 PH9384.089NL 538 0.6 30 Notes: 1. The ET Max is calculated to limit the core loss and temperature rise at 200KHz based on a bipolar flux swing of 130mT Peak. 2. For Push-Pull topology, where the voltage is applied across half the primary winding turns, the ET needs to be derated by 50% for the same flux swing. 3. The applied ET may need to be further derated for higher frequencies based on the 4. temperature rise which results from the core and copper losses A. To calculate total copper loss (W), use the following formula: 5. Copper Loss (W) = Irms_Primary2 * DCR_Primary + Irms_ Secondary2*DCR_Secondary B. To calculate total core loss (W), use the following formula: 6. Core Loss (W) = 2.72E-12 * (Frequency in kHz)2.43*(130 * [ET/ET Max])2.5 0.30 0.33 0.30 0.35 0.35 0.40 0.30 0.30 0.30 0.40 0.65 0.25 0.52 0.65 0.90 0.30 0.22 0.42 MAX (1-3)1 (V-sec Max) Turns Ratio (1:3) (6:4) Isolated Voltage (Vrms) 24 24 24 27 27 27 24 24 24 1CT : 1CT 1CT : 2CT 2CT : 1CT 3CT : 4CT 3CT : 5CT 3CT : 8CT 4CT : 3CT 8CT : 3CT 8CT :9CT 4000 Where ET is the applied Volt Second, ET Max is the rated Volt Second for 130mT flux swing C. To calculate temperature rise, use the following formula: Temperature Rise (C) = 154 * (Core Loss(W) + Copper Loss (W)) The AEC-Q200 temperature and humidity operational life testing was completed using a dielectric strength test of 4000Vdc. Optional Tape & Reel packing can be ordered by adding a "T" suffix to the part number (i.e. PH9384.012NL becomes PH9384.012NLT). Pulse complies to industry standard tape and reel specification EIA481. The "NL" suffix indicates an RoHS-compliant part number. Mechanical PH9384.XXXNL Schematic 1 6 2 5 3 4 PRIMARY SECONDARY Weight ...........................0.85grams Tape & Reel ........................400/reel Tray ......................................55/tray Dimensions: mm Unless otherwise specified, all tolerances are 0.25 1 power.pulseelectronics.com P775. K (08/18) http://www.power.pulseelectronics.com/contact High Isolation Power Transformers Toroid Platform SMD Application PH9384NL 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 MAXIMTM MAX253 IC. A schematic diagram for the Push Pull converter topology is given below. VIN PH9384 VCC D1 V OUT 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. PH9384.034NL has been certified by UL to comply with UL60950-1 2 edition with reinforced insulation for a working voltage up to 300Vac. 7mm creepage and 3000Vrms isolation voltage is guaranteed to meet this requirement. The actual isolation voltage (550Vrms) and creepage (8.5mm) capability of the design exceeds these UL ratings. The remainder of the PH9384.XXXNL series was not included in the UL certification but are fully complaint with the requirements for reinforced insulation. MAXIM is a registered trademark of Maxim Integrated Products. For More Information Pulse Worldwide Pulse Europe Headquarters Pulse Electronics GmbH 15255 Innovation Drive Ste 100 Am Rottland 12 San Diego, CA 92128 58540 Meinerzhagen U.S.A. Germany Tel: 858 674 8100 Fax: 858 674 8262 Tel: 49 2354 777 100 Fax: 49 2354 777 168 Pulse China Headquarters Pulse Electronics (ShenZhen) CO., LTD D708, Shenzhen Academy of Aerospace Technology, The 10th Keji South Road, Nanshan District, Shenzhen, P.R. China 518057 Pulse North China Room 2704/2705 Super Ocean Finance Ctr. 2067 Yan An Road West Shanghai 200336 China Pulse South Asia 3 Fraser Street 0428 DUO Tower Singapore 189352 Pulse North Asia 1F., No.111 Xiyuan Rd Zhongli City Taoyuan City 32057 Taiwan (R.O.C) Tel: 86 755 33966678 Fax: 86 755 33966700 Tel: 86 21 62787060 Fax: 86 2162786973 Tel: 65 6287 8998 Fax: 65 6280 0080 Tel: 886 3 4356768 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. (c) Copyright, 2018. Pulse Electronics, Inc. All rights reserved. 2 power.pulseelectronics.com P775. K (08/18) http://www.power.pulseelectronics.com/contact