Document 1241 800 W Planar Transformer For TI UCC28950 Controller • Designed for Texas Instruments PMP6712 Dual-Channel Full-Bridge Converter for PoE Power Sourcing (PSE) • 38 – 60 V input; 54 V, 15 A output • 1500 Vrms, one minute isolation from primary to secondary windings • Listed as T2 and T4 on Texas Instruments BOM-PMP6712 • Insulated bottom surface Core material Ferrite Terminations Matte tin over nickel over brass. Weight 56 g Ambient temperature –40°C to +125°C Storage temperature Component: –40°C to +125°C. Tray packaging: –40°C to +80°C Maximum part temperature +165°C (Ambient + temperature rise) 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 20 per tray PCB washing Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. See Doc787_PCB_Washing.pdf. Part number Inductance DCR max (mOhms) at 0 A1 min (µH) pri sec NA5871-AL 42 1.37 4.4 Leakage inductance max (µH) Turns pri : sec Output 0.20 3:5 54 V, 15 A 1. Inductance is measured at 100 kHz, 0.1 Vrms, 0 Adc. 2. Leakage inductance is for the primary, measured with the secondary shorted 3. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. Dot indicates pin 1 Internal code XXXXY 4 NA5871-AL 1 1 11 11 0.36 9,14 1.29 max 32,8 6 0.133 (4) 3,38 ∅ 0.36 9,14 4 0.18 4.57 Recommended Land Pattern 0.54 13,71 6 1.73 43,96 1.91 max 48,5 0.531 max 13,5 0.10 typ 2,54 Insulator 0.006 /0,15 Dimensions are in inches mm Document 1241 Revised 12/06/14