Document 1042 Flyback Transformer For Microchip AN1444 Microinverter • Developed for the Microchip AN1444 Grid-Connected Solar Microinverter • Designed to operate at 57 kHz with 20 – 55 Vdc input • Rectified sine wave output • Maximum power: 100 W • 3000 Vrms, one minute isolation primary to secondary • 1500 Vrms, one minute isolation windings to core Core material Ferrite Terminations RoHS tin-silver-copper over tin over copper-clad steel. Weight 90 g Ambient temperature –40°C to +85°C Storage temperature Component: –40°C to +85°C. Tray packaging: –40°C to +80°C 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 20 parts per tray PCB washing Tested with pure water or alcohol only. For other solvents, see Doc787_PCB_Washing.pdf Part number NA5814-AL NA5919-AL at 0 A1 L at Ipk2 ±10% (µH) min (µH) 55.0 44.0 55.0 38.5 L DCR max (Ohms)3 pri sec 0.0475 0.360 0.0480 0.110 Leakage L4 max (µH) 1.45 1.58 Turns ratio pri : sec 1 : 7 1 : 4 Ipk2 Output (A)(Vrms) 13.6 230 13.6 110 1. Inductance is for the primary, measured at 150 kHz, 1.0 Vrms, 0 Adc. 2.Ipk is the peak current drawn at minimum input voltage. 3. DCR for the primary is with windings connected in parallel 4. Leakage inductance measured on the primary winding with the secondary pins shorted. 5. Ambient operating temperature range –40°C to +85°C. 6. Electrical specifications at 25°C. Dot indicates pin 1 1 0.047 ∅(12) 1,20 0.200 (8) 5,08 12 NA5814-AL XXXX Y 6 1.670 max 42,40 7 1.968 max 50,0 1.400 35,56 0.300 (2) 7,62 5 6 10 Pri Sec 2 1 12 Primary windings to be connected in parallel on the PC board. Recommended Board Layout 1.200 max 30,48 0.031 (12) 0,80 0.130 min 3,30 Dimensions are in inches mm 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] Document 1042 Revised 04/23/14 © Coilcraft Inc. 2014 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.