Document 765 Gate Drive Transformer For use with TI UCD30xx Digital Power Controllers • Selected by Texas Instruments for their PR796 and PR841 evaluation boards. • Designed to meet UL/CSA/IEC 60950 Reinforced Insulation specification; 3.0 mm creepage and clearance. • 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 Primary Leakage Part Turns inductance2 inductance3 DCR max 1 number ratio ±25% (µH) max (µH) (Ohms) GA3550-BL_1 : 1 : 1 460 1.15 (Pri [A]) 1.25 (Pri [B]) Volt-time product4 (V-µsec) SRF typ5Capacitance (MHz) max (pF) 0.410 (Pri [A]) 165 5.85 0.475 (Pri [B]) 0.440 (sec) 1. When ordering, please specify a packaging code: 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. 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. 1 Pri [ A] 2 10 Sec 9 5 Pri [ B] 6 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 765 Revised 09/16/11 © Coilcraft Inc. 2013 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.