Switch Mode Transformer for AC/DC offline Applications EE16H, EE16V, EF20H and EF25V Platforms AC/DC offline Switch Mode Transformer Hipot up to 3000Vrms Flyback Topology Operational Insulation Matched to Tiny Switch and Top Switch chipsets Custom Design Available: <60W with up to Reinforced Insulation Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C Pri. Inductance (3-2) Lk. Inductance w/ DCR PH0256NL Hi-Pot (4,5,8,10) 2800 μH±15% (3-2) 3.3 (10-8) 0.02 (4-5) 0.13 Pri-Sec 500 K1 Factor TNY264/274 Pri. Inductance (4-1) Lk. Inductance w/ PHO259NL DCR Hi-Pot (5,6,7,8) 1800 μH±15% 60 μH max shorted (4-1) 2.556 (5-6) 0.0168 (8-6) 0.174 Pri-Sec 500 85-375Vdc 132KHz 24Vdc, 0.2A Ω Max 5Vdc, 0.5A Vrms TNY266/274 Pri. Inductance (3-1) Lk. Inductance (3-1) (4,5,9,10) w/ DCR Hi-Pot FLYBACK TRANSFORMER 790μH ±10% 30 μH max shorted (3-1) 1.085 (4-5) 0.015 (10-9) 0.026 Pri-Sec 3000 K1 Factor 95-265Vdc 132KHz 12Vdc, 1.25A Ω Max 9Vdc, 0.02A Vrms 4030 PI IC’s TNY279 Germany 49 7032 7806 0 1 80-375Vdc 132KHz 7200 PI IC’s USA 858 674 8100 Vrms 5Vdc, 1A FLYBACK TRANSFORMER K1 Factor PH0262NL Ω Max 10100 PI IC’s 9Vdc, 0.02A 65 μH max shorted Singapore 65 6287 8998 pulseelectronics.com FLYBACK TRANSFORMER Shanghai 86 21 62787060 China 86 755 33966678 Taiwan 886 3 4356768 P724.B (07/13) Switch Mode Transformer for AC/DC offline Applications EE16H, EE16V, EF20H and EF25V Platforms Pri. Inductance Lk. Inductance w/ PH0270NL DCR Hi-Pot 876 μH ±10% (3-1) 28 μH max shorted (3-1) (4,5,6,7,9,10) (3-1) 0.5 (5-4) 0.026 (6-7) 0.025 (9-10) 0.025 Pri-Sec 1500 K1 Factor PI IC’s 85V-265V 132KHz Ω Max Vrms 12Vdc, 2.5A 12Vdc, 0.02A 2900 TOP244 /245 / 246 / 254 / 264 Notes: 1. The temperature of the component (ambient plus temperature rise) must be within the stated operating temperature range. 2. The above transformers and inductors have been tested and approved by Pulse’s power IC partners and are sited in the appropriate datasheet or evaluation board documentation at these companies. To determine which IC and IC partners are matched with the above Pulse part numbers please consult the IC Cross Reference on the Pulse website. 3. For flyback topology applications, it is necessary to ensure that the transformer will not saturate in the application. The peak flux density (Bpk) should remain below 2700Gauss. To calculate the peak density, use the following formula: Bpk (Gauss) = K1_Factor * Ipk (A) FLYBACK TRANSFORMER 4. In high volt-sec applications, it is important to calculate the core loss of the transformer. Approximate transformer core loss can be calculated as: CoreLoss (W) = 3.6E-14 * (Freq_kHz) 1.63 * (ΔB_Gauss) 2.63 where ΔB can be calculated as: For Flyback Topology: ΔB = K1_Factor * Δ(A) For Forward Topology: ΔB = K1_Factor * Volt-µsec 5. The “NL” suffix indicates an RoHS-compliant part number. Non-NL suffixed parts are not necessarily RoHS compliant, but are electrically and mechanically equivalent to NL versions. If a part number does not have the “NL” suffix, but an RoHS compliant version is required, please contact Pulse for availability. Mechanical PH0256NL 2 pulseelectronics.com P724.B (07/13) Switch Mode Transformer for AC/DC offline Applications EE16H, EE16V, EF20H and EF25V Platforms Mechanical PH0259NL PH0262NL 3 pulseelectronics.com P724.B (07/13) Switch Mode Transformer for AC/DC offline Applications EE16H, EE16V, EF20H and EF25V Platforms Mechanical 5 PH0270NL For More Information Pulse Worldwide Headquarters 12220 World Trade Drive San Diego, CA 92128 U.S.A. Pulse Europe Einsteinstrasse 1 D-71083 Herrenberg Germany Pulse China Headquarters Pulse North China Pulse South Asia Pulse North Asia B402, Shenzhen Academy of Room 2704/2705 135 Joo Seng Road 3F, No. 198 Aerospace TechnolSuper Ocean Finance #03-02 Zhongyuan Road ogy Bldg. Ctr. PM Industrial Bldg. Zhongli City 10th Kejinan Road 2067 Yan An Road Singapore 368363 Taoyuan County 320 High-Tech Zone West Taiwan R. O. C. Nanshan District Shanghai 200336 Tel: 886 3 4356768 Shenzen, PR China China Tel: 65 6287 8998 Fax: 886 3 4356823 (Pulse) Tel: 858 674 8100 Tel: 49 7032 78060 518057 Fax: 65 6287 8998 Fax: 886 3 4356820 (FRE) Fax: 858 674 8262 Fax: 49 7032 7806 135 Tel: 86 755 33966678 Tel: 86 21 62787060 Fax: 86 755 33966700 Fax: 86 2162786973 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, 2013. Pulse Electronics, Inc. All rights reserved. 4 pulseelectronics.com P724.B (07/13)