Document 1298 Flyback Transformer For Maxim MAX17597 Flyback Configuration • Mounted on Maxim MAX17597 Evaluation Kit • 18 V – 36 V primary input • 24 V, 0.833 A output • 1500 Vrms, one minute isolation between primary and secondary Core material Ferrite Terminations RoHS tin-silver-copper (96.5/3.0/0.5) over tin over nickel over phos bronze. Other terminations available at additional cost. Weight 13.4 g Ambient temperature –40°C to +125°C Maximum part temperature 135°C (ambient + temp rise) Storage temperature Component: –40°C to +125°C. Tray packaging: –40°C to +80°C Resistance to soldering heat Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C / 85% relative humidity) Failures in Time (FIT) / Mean Time Between Failures (MTBF) 38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332 Packaging 100 parts per tray PCB washing Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. See Doc787_PCB_Washing.pdf. Part number CU8758-AL InductanceInductance at 0 Adc1 at Ipk2 DCR max (Ohms) ±10% (µH) min (mH) pri sec 33 26 0.03 1. Inductance is for the primary, measured at 200 kHz, 0.1 Vrms. 2. Peak primary current drawn at minimum input voltage. 3. Leakage inductance is for the primary winding with the secondary winding shorted. 4. Electrical specifications at 25°C. 5 6 3 4 Pri Sec 1 2 Leakage Turns ratio max (µH) pri : sec 0.041 0.8 (A) 1 : 1.85 3.3 Output 24 V, 0.833 A 0.827 max 21,0 Dot indicates pin 1 CU8758-AL 0.512 max 13,0 XXXX Y 0.024 ∅ 0,6 0.689 17,5 0.138 3,5 7 8 The following pins to be connected on the PC board: Pins 1 – 2 Pins 3 – 4 Pins 5 – 6 Pins 7 – 8 Ipk2 Inductance3 Internal code 0.134 3,4 4 0.689 17,5 5 0.197 5,0 0.197 5,0 1 8 0.846 max 21,5 0.039 ∅ 1,0 1 8 4 5 Recommended PC Board Layout Dimensions are in US +1-847-639-6400 [email protected] UK +44-1236-730595 [email protected] Taiwan +886-2-2264 3646 [email protected] China +86-21-6218 8074 [email protected] Singapore + 65-6484 8412 [email protected] inches mm Document 1298 Revised 06/06/16 © Coilcraft Inc. 2016 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information.