Full PDF Text Transcription for U6939-C (Reference)
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U6939-C. For precise diagrams, and layout, please refer to the original PDF.
Document 268 Flyback Transformer – U6939-CMicreFl MorICus3e8Cw4itxhfamily This product is not RoHS-compliant. Contact Coilcraft Schematic for current status or possible a...
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ompliant. Contact Coilcraft Schematic for current status or possible alternatives. 18 This transformer has been specially designed to meet the requirements of Micrel’s MIC38C4x family of BiCMOS current-mode PWM controllers. C Pri Sec 27 3 Ter Free evaluation samples can be requested by contact- D 4 ing the Coilcraft sales office nearest you. Recommended Board Layout Part Inductance1 DCR max number ±8% (µH) (Ohms) Isolation (Vrms) A E U6939-C 380 (1-2) 0.580 (1-7,core) 2500 4 5 (3-4) 0.120 (1-3) 500 F (7-8) 0.011 (3,7-core) 500 B 1. Inductance is for the primary, measured at 100 kHz, 1.0 Vrms, 0 Adc. 2. Operating temperatur