THT Current Sense Transformers For Arc Fault Detection Circuits Works with the TI SolarMagic RD-195 DC Arc Fault Detection Reference Design Kit For the TI SM73201-ARC-EV PCB UL/C-UL recognized components 3000 Vrms gate to drive winding test Useful operating frequency from 50 kHz to 500 kHz Electrical Specifications @ 25°C — Operating Temperature -40°C to 130°C Part Number Turns Ratio Primary Inductance (3-7) (mH MIN) (3-7) (Ω MAX) (4-8) (mΩ MAX) (1-10) (mΩ MAX) (Pri-Sec) (Vrms) PA3655NL 200:200:1 76 15.8 15.8 1.7 3000 Part Number RT (Ω) PA3655NL 200 DCR Pri 1 DCR Sec Electrical Specifications @ 25°C — Operating Temperature -40°C to 130°C Reference Data Ipk Max Flux Density (Amps) (Gauss) 34 2000 Notes: 1. These current sense transformers have two one turn primaries that can be used in parallel. The listed current ratings are for parallel connection. 2. The reference values are for an application using the termination resistor (Rt) and operating with unipolar waveform at 100kHz, 40% duty cycle. The estimated temperature rise is 55°C. 3. The peak flux density should remain below 2100 Gauss to ensure that the core does not saturate. Use the following formula to calculate the peak flux density: Bpk = Kb * Ipk * Rt * don/(Ff * Freq. in kHz) where: Rt is the terminating resistor in the application and Ff is 1 for unipolar waveform and 2 for bipolar waveform .810 MAX 20,57 10 .350 8,89 .750 19,05 MAX .700 17,78 17.12 7 .200 5,08 4 SUGGESTED PCB HOLE PATTERN Weight.............................5 grams Tray. . . . . . . . . . . . . . . . . . . . . . 2 0 /t ray Dimensions: 4 Inches mm Unless otherwise specified, all tolerences are ± 7 10 Kb (6X) .040 1 3 Calculation Data Schematic .580 14,73 MAX 1 Hi-Pot 4. The temperature rise of the component is calculated based on the total core loss and copper loss: A. To calculate total copper loss (W): P(cu) = Ipk2 * DCR Sec * Ff * don where: Ff is 1 for unipolar waveform and 2 for bipolar waveform B. To calculate total core loss (W): P(core) = 0.000073 * (Freq. in kHz)1.67 * (Bop in kG)2.532 where: Bop in kG = Kb * Ipk * Rt * don/(2000 * Freq. in kHz) C. To calculate temperature rise: Temperature Rise (C) = 60.18 * (Core Loss(W) + Copper Loss (W)).833 Mechanicals PA3655NL .130 3,30 DCR Pri 2 8 .010 0,25 For More Information Pulse Worldwide Headquarters 12220 World Trade Drive San Diego, CA 92128 U.S.A. Pulse Europe Zeppelinstrasse 15 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, Zhongyuan Road Aerospace Technology Bldg. Super Ocean Finance Ctr. #03-02 Zhongli City 10th Kejinan Road 2067 Yan An Road West PM Industrial Bldg. Taoyuan County (32068) High-Tech Zone Shanghai 200336 Singapore 368363 Taiwan Nanshan District China Shenzen, PR China 518057 Tel: 858 674 8100 Tel: 49 7032 7806 0 Tel: 86 755 33966678 Tel: 86 21 62787060 Tel: 65 6287 8998 Tel: 886 3 4356768 Fax: 858 674 8262 Fax: 49 7032 7806 12 Fax: 86 755 33966700 Fax: 86 2162786973 Fax: 65 6287 8998 Fax: 886 3 4356823 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, 2012. Pulse Electronics, Inc. All rights reserved. 1 pulseelectronics.com P717.A (2/13)