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| ICE Components, Inc. 1165 Allgood Road Suite 20 Marietta, GA 30062 Voice: (800) 729-2099 Email: cust.serv@icecomp.com Fax: (678) 560-9304 Web: www.icecomponents.com SMPS Xfmr TO Series Designed in conjunction with ON-Semi, the TO Series of transformers work with the ON Semiconductor NCP1207 PWM current-mode controller with quasiresonant (QR) switching capability. Standard designs for 5V and 12V single outputs in power levels ranging from 25W to 85W will get your prototypes up and running fast. Just contact ICE Components to request samples or to discuss a custom version to meet your specific requirement. Electrical Specifications Part Number TO-05300 TO-05400 TO-05500 TO-05650 TO-05800 TO-12300 TO-12400 TO-12600 TO-12850 ELECTRICAL SPECIFICATIONS--STANDARD SERIES Output Power Range (W) 25-30 31-40 41-50 51-65 66-80 25-30 31-40 41-60 61-85 Vout (VDC) 5.0 5.0 5.0 5.0 5.0 12.0 12.0 12.0 12.0 Iout max LPRI (H) 471.4 351.8 289.7 224.9 182.9 384.4 288.4 194.4 139.5 IPK (A) 1.80 2.46 3.09 3.89 4.81 1.93 2.63 3.97 5.55 Input Bulk Cap (F) 68 82 120 150 180 68 82 120 180 Core Type EFD30 ER28 ER28 PQ32/20 ERL28 EF25 EFD30 ER28 ERL28 (A) 6.0 8.0 10.0 13.0 16.0 2.5 3.33 5.0 7.1 1. 2. 3. 4. Measured at 100 kHz, 1 Vrms. Electrical specifications at 25C. Meets UL 94V-0. Operating temperature range: -40C to +130C. Operating temperature is the sum of ambient temperature plus temperature rise. 5. Transformer inductance values calculated using ON Semi-conductor's "QR Inductance Calculation" spreadsheet, available at http://www.onsemi.com/pub/collateral/QR IND CALC.xls. Certain design assumptions were necessary to develop core and bobbin choices: A. Input bulk capacitor sized at 2 uF/W, rounded up to the first commercially available value. B. Universal input voltage, with 265 VAC as the upper limit. The lower limit input voltage was adjusted to cause the input bulk capacitor value to be a commercially available value. Maximum switching frequency: 100 kHz. Maximum duty cycle: <50%. Efficiency set at 87%. Output diode drop set at 0.4 V. Turns ratios are as follows: 1. 5V: 1:0.08 2. 12V: 1:0.20 H. Estimated total drain capacitance set at 100 pF. I. BMAX set at 0.250 T. J. Wire sized for <40C temperature rise at low input line voltage and full output load at 25C. 6. Constructed using UL Class B insulation system. 7. Hi-Pot Test: 3750 VAC primary to secondary, and 2500 VAC windings to core. C. D. E. F. G. Specifications subject to change without notice. (10/06) TO-1 SMPS Xfmr * Mechanical - EFD30 TO Series Packaging: Tray=24 pieces, Box=12 trays, Box=288 pieces Foot Print * units: mm Mechanical - ER28 Packaging: Tray=66 pieces, Box=5 trays, Box=330 pieces Foot Print * units: mm Mechanical - PQ32/20 Packaging: Tray=40 pieces, Box=4 trays, Box=160 pieces Foot Print * units: mm Mechanical - ERL28 Packaging: Tray=48 pieces, Box=5 trays, Box=240 pieces Foot Print * units: mm Mechanical - EF25 Packaging: Tray=77 pieces, Box=5 trays, Box=385 pieces Foot Print Specifications subject to change without notice. units: mm (10/06) TO-2 |
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