D1766-AL COILCRAFT | Alldatasheet
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© Coilcraft, Inc. 2008 Specifications subject to change without notice. Please check our website for latest information. Flyback Transformer Document 529 Document 529 Revised 09/11/06 1. When ordering, please specify packaging code: D1766-ALD Packaging: D =1 3″ machine-ready reel. EIA-481 embossed plastic tape (175 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. 5,6 S3Primary 3.3 V 2.5 V 1.8 V GND 8,7 0.930 23,62 0.130 3,30 0.050 1,27 0.118 3,0 0.450 11,43 1.181 30,00 0.827 21,0 0.810 20,57 0.969 24,6 0.084 2,13 0.028 0,72 0.118 3,0 max max max Recommended Land Pattern 0.004 /0,10 D1766-AL Dot indicates pin 1 The D1766-AL multiple-output transformer was devel- oped for use with Linear Technology LTC4267 Power over Ethernet IEEE 802.3af PD Interface with Integrated Switching Regulator. It is ideal for use in telecommuni- cations isolated converters and isolated power supplies. This low-profile transformer is designed for an input voltage of 36 – 72 Volts. It features interleaved primary and secondary windings to minimize leakage induc- tance and 1500 Vrms isolation between windings. Coilcraft can also custom engineer a transformer to meet your specific requirements. For free evaluation samples, contact Coilcraft or visit www.coilcraft.com. For Linear Technology LTC4267 PoE PD Interface 2. Inductance is for the primary, measured at 200 kHz, 1.1 Vrms, 0 Adc. 3. Peak primary current drawn at minimum input voltage. 4. Leakage inductance is for the primary and is measured with secondary windings shorted. 5. Operating temperature range –40°C to +125°C. 6. Electrical specifications at 25°C. Weight: 12.7 g Terminations: Tin-silver over tin over nickel over phos bronze Tape and reel: 175/13″ reel, 44 mm tape width For packaging data see Tape and Reel Specifications section. Inductance Inductance Leakage Part at 0 Adc 2 at Ipk3 DCR max Inductance 4 Turns ratio Ipk3 number1 ±10% (µH) min (µH) (Ohms) max (µH) pri : S1 pri : S2,S3 (A) Outputs 0.013 (pins 8 – 5) 2.5 V, 1.5 A 0.013 (pins 7 – 6) 1.8 V, 2.5 A 0.015 (pins 10 – 9) 0.030 (pins 12 – 11) Pins 9,8,7 to be connected on the board. Pins11,10 to be connected on the board.