Document 924B-1 Flyback / Buck Transformer for TI UCC25230 Switching Converter The MA5401-AE was developed for use with the Texas Instruments UCC25230 Switching Converter (12 – 100 V input, 0.20 A output). It is designed to meet UL60950 Functional Isolation for working voltage up to 210 V peak. With 1000 Vrms (1500 Vdc) hipot and a small package size, this transformer is ideal for use in high density isolated circuit applications. It provides tight coupling (k > 0.99), high inductance and excellent current handling in a rugged, low cost part. SHS D1 + VIN L1 SLS CIN L2 Co VPRI + VOUT CPRI – 0.189 ±0.003 4,80 ±0,08 Dot indicates pin 1 1 – Typical Flyback / Buck Converter 4 XXX X 2 Dash number 0.189 ±0.003 4,80 ±0,08 3 Internal code 0.114 ±0.004 2,90 ±0,10 Recommended Land Pattern 0.138 3,50 0.090 2,30 45° typ 0.134 0.090 3,40 2,30 0.060 1,52 1 4 L1 2 L2 1:1 3 0.030 0,75 0.197 5,00 0.059 1,50 0.134 3,40 0.197 5,00 Dimensions are in Core material Ferrite Environmental RoHS compliant, halogen free Terminations RoHS compliant silver-palladium-platinum-glass frit. Other terminations available at additional cost. Weight 210 – 225 mg Ambient temperature –40°C to +125°C (Ambient temperature + self-heating must not exceed a part temperature of 125°C. See notes for calculating temperature rise due to self-heating.) Storage temperature Component: –40°C to +125°C. Tape and reel packaging: –40°C to +80°C Winding to winding isolation 1500 Vdc 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 750/7″ reel; 2500/13″ reel Plastic tape: 12 mm wide, 0.32 mm thick, 8 mm pocket spacing, 3.1 mm pocket depth Recommended pick and place nozzle OD: 5 mm; ID: ≤ 2.5 mm PCB washing Tested with pure water or alcohol only. For other solvents, see Doc787_PCB_Washing.pdf. 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 924B-1 Revised 09/17/12 © 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. Document 924B-2 MA5401-AE for TI UCC25230 Switching Converter Inductance2 DCR max3 Part number1 ±20% (µH) (Ohms) SRF typ4 (MHz) CouplingLeakage Isat (A)6 coefficient inductance5 Hipot7 typ typ (µH) 10% drop 20% drop 30% drop (Vdc) MA5401-AE_ 220 5.256.5 >0.990.541 0.16 0.21 0.24 1500 1. When ordering, please specify packaging code: Temperature rise calculation based on current MA5401-AEC Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic tape (750 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. D = 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (2500 parts per full reel). 2. Inductance shown for each winding, measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4284A LCR meter or equivalent. When leads are connected in parallel, inductance is the same value. When leads are connected in series, inductance is four times the value. 3. DCR is for each winding. When leads are connected in parallel, DCR is half the value. When leads are connected in series, DCR is twice the value. 4. SRF measured using an Agilent/HP 4191A or equivalent. When leads are connected in parallel, SRF is the same value. 5. Leakage Inductance is for L1 and is measured with L2 shorted. 6. DC current, at which the inductance drops the specified amount from its value without current. It is the sum of the current flowing in both windings. 7. Hipot production tested 100% at 1800 Vdc for 2 seconds. 8. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. Winding power loss = (IL12 + IL22 ) × DCR in Watts (W) 157°C Temperature rise = Winding power loss × W Equal current in each winding (0.15 A): Winding power loss = (0.15 2 + 0.15 2) × 5.25 = 0.236 W 157°C = 37°C Temperature rise = 0.236 W × W Unequal current (IL1 = 0.21 A, IL2 = 0.06 A): Winding power loss = (0.21 2 + 0.06 2) × 5.25 = 0.250 W 157°C = 39.3°C Temperature rise = 0.250 W × W Typical Current Derating 100 90 80 70 60 50 40 30 25°C Percent of rated current 120 110 20 10 0 -40 -20 0 20 40 60 80 100 120 140 Ambient temperature (°C) Typical L vs Current Typical L vs Frequency 1000 800 700 Inductance (µH) 600 500 400 300 200 100 0.1 1 10 100 Frequency (MHz) These are preproduction products for electrical evaluation only. Document 924B-2 Revised 09/17/12 USparts +1-847-639-6400 [email protected] Specification subject to change without notice. UK +44-1236-730595 [email protected] © Coilcraft Inc. 2013 This product may not be used in medical or high Taiwan +886-2-2264 3646 [email protected] risk applications without prior Coilcraft approval. China +86-21-6218 8074 [email protected] Specification subject to change without notice. Please check web site for latest information. Singapore + 65-6484 8412 [email protected]