Specification Number SGE2645-1G Revision. A (082905) ® TM 6W LMT3811 75.0:1 Transformer DESCRIPTION This document describes and specifies the electrical and mechanical characteristics of the SGE2645-1G high voltage transformer for CCFL inverter power supplies. SGE2645-1G is the RoHS compliant and Lead free transformer. For Reliability and Safety Specification, refer to SGE2606-2. WWW . Microsemi .C OM ELECTRICAL CHARACTERISTICS Inductance (@ 10Khz, 0.1V) Items Min Nom Max L1-2, L2-3 (µH) 31 36 42 L4-5 (mH) 700 790 945 Inductance (@ 100KHz, 1V) LLKG1-2, LLKG2-3 (µH) 4.4 4.5 4.6 LLKG4-5 (mH) NA NA NA Rating Note: Max output power varies depend on operating condition. Max Open Output Voltage 2000VRMS , 3sec. Max Output Voltage 1100VRMS Max Output Power 6W DC. Resistance Min Nom Max RDC1-2, RDC2-3(mΩ) 51 52.3 53.5 RDC4-5 (Ω) 273 284 295 RDC1-2 / RDC2-3 0.96 1 1.04 Secondary Self Capacitance ( HP4192A 1MHz C meter, 30mVrms) C4-5 (pF) 2.0 2.5 3.0 Dielectric Voltage Withstand 60Hz, Arc-detect enabled, 5 sec. min. 200µA max. leakage current Secondary to Core 2500VRMS min. ( 60sec) Primary to Core 1000VRMS min. Primary to Secondary 1000VRMS min. Items WINDING SPECIFICATIONS Primary Winding Sequence Wire Size & Type Number of Turns Winding Method Pin 1 – 2 2S – 1F #29, Single Insulation, 180°C 10 Pin 2 – 3 3S – 2F #29, Single Insulation, 180°C 10 Secondary Pin 4 – 5 5S – 4F #45, Triple Insulation, 180°C 1500 Bifilar PHYSICAL SPECIFICATIONS & WIRING DIAGRAM SGE - G XYZD A – SGE2645-1G: MSC PN, XYZ: Datecode (X:YR, YZ=WK), D: Plant Code, A: Rev.# PACKAGING SPEC AND ORDER INFORMATION Packaging Order Information – SGE2645-1G ( Standard for TRAY) SGE2645-1GTR (Tape and Reel ) SGE2645-1GT (with Polymide Tape for TRAY) TAPE & REEL : Refer to SGE2604-4 specification Copyright © 2004 Rev. A, 2005-08-29 Microsemi Integrated Products Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 1 SGE2645-1G PART MARKING Specification Number SGE2645-1G Revision. A (082905) TM ® 6W LMT3811 75.0:1 Transformer NOTES WWW . Microsemi .C OM NOTES PRODUCTION DATA – Information contained in this document is proprietary to Microsemi and is current as of publication date. This document may not be modified in any way without the express written consent of Microsemi. Product processing does not necessarily include testing of all parameters. Microsemi reserves the right to change the configuration and performance of the product and to discontinue product at any time. Copyright © 2004 Rev. A, 2005-08-29 Microsemi Integrated Products Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 2