Document 441 Power Transformer For Maxim MAX5074 Isolated PWM Power IC The C0984-CL transformer is designed specifically for the Maxim MAX5074 isolated PWM power IC in a forward DCDC converter. It can be used in power supplies for IEEE 802.3af-compliant PoE applications, IP phones, WLAN Access-Points and a variety of other telecom applications with an input voltage range from 36 V to 72 V. This transformer features very low secondary winding DCR and 1500 Vrms isolation from the primary and bias windings to the secondary. Coilcraft can also custom engineer a transformer to meet your specific requirements. For free evaluation samples, contact Coilcraft or visit www.coilcraft.com. DCR max (Ohms) Part Inductance2 number1 Power min (µH) pri sec bias Leakage inductance3 max (µH) Turns ratio pri : sec pri : bias C0984-CL_ 18 W 395 0.127 0.065 0.875 1.75 1 : 0.88 1 : 0.44 1. When ordering, please specify a packaging code: C0984-CLD Packaging:D =13″ machine ready reel. EIA-481 embossed plastic tape (200 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. Dot indicates pin 1 12 1 0.135 3,43 1 C0984-CL XXXXY 0.677 max 17,20 0.028 0,72 6 0.865 max 21,97 0.079 2,01 0.665 16,88 0.07 1,79 1 Primary 3 5 11 Secondary 8 Bias 6 0.098 2,5 0.098 2,5 Parts manufactured prior to December 2011 may be marked differently. 0.340 max 8,64 0.590 14,98 0.693 17.60 2. Inductance is for the primary, measured at 10 kHz, 0.1 Vrms, 0 Adc. 3. Leakage inductance is for the primary winding with the other windings shorted. 4. Operating temperature range –40°C to +125°C. 5. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. Recommended Land Pattern 7 Output 12 V, 1.5 A (sec) 14 V, 0.03 A (bias) 0.004 /0,10 Dimensions are in inches mm Weight 5.8 g Terminations Tin-silver (96.5/3.5) over tin over nickel over phos bronze Ambient temperature –40°C to +125°C Storage temperature Component: –40°C to +125°C. Tape and reel packaging: –40°C to +80°C Packaging 200/13″ reel Plastic tape: 44 mm wide, 0.35 mm thick, 28 mm pocket spacing, 9.6 mm pocket depth PCB washing Tested with pure water or alcohol only. For other solvents, see Doc787_PCB_Washing.pdf. 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 441 Revised 12/20/11 © 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.