Document 765 Gate Drive Transformer For use with TI UCD30xx Digital Power Controllers • Selected by Texas Instruments for their PR796 and PR841 evaluation boards. • Isolation: 3000 Vrms primaries to secondary; 500 Vrms windings to core Core material Ferrite Terminations RoHS compliant tin-silver over tin over copper. Other terminations available at additional cost. Weight 6.3 g Ambient temperature –40°C to +85°C Storage temperature Component: –40°C to +85°C. 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 200/13″ reel Plastic tape: 44 mm wide, 0.4 mm thick, 24 mm pocket spacing, 10.56 mm pocket depth PCB washing Only pure water or alcohol recommended Part number1 Turns ratio Primary inductance2 ±25% (µH) Leakage inductance3 max (µH) GA3550-BL_ 1:1:1 460 1.15 (Pri [A]) 1.25 (Pri [B]) DCR max (Ohms) 0.410 (Pri [A]) 0.475 (Pri [B]) 0.440 (sec) 1. When ordering, please specify a packaging code: Volt-time product4 (V-µsec) SRF typ5 (MHz) 165 5.85 Dot indicates pin 1 1 0.069 1,75 12 GA3550-BL CCIXXXX 0.028 0,70 0.100 2,54 0.685 max 17,40 0.100 2,54 34.0 (1 – 10) 10.5 (1 – 5) 2. Inductance is for each winding, measured at 200 kHz, 0.4 Vrms, 0 Adc. 3. Leakage inductance is measured at 200 kHz, 0.4 Vrms with secondary pins shorted. 4. Volt-time product is per winding. 5. SRF is per winding, measured on an Agilent/HP 4192 or equivalent. 6. Operating temperature range −40°C to +85°C. 7. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. GA3550-BLD Packaging: D = 13″ machine ready reel. EIA-481 embossed plastic tape (200 parts per full reel). B = Less than full reel. In tape, but not machine ready. To have a leader and trailer added ($25 charge), use code letter D instead. 1 Capacitance max (pF) 1 12 Pri [ A] 2 Recommended Land Pattern 10 Sec 9 5 Pri [ B] 7 6 0.748 19,0 0.699 17,00 0.130 3,30 6 0.394 max 10,0 0.799 20.30 0.950 max 24,13 0.004 / 0,10 Dimensions are in inches mm Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2009 Document 765 Revised 10/20/09