D1766-AL

Document 529 Flyback Transformer ForLinearTechnology LTC4267 PoE PD Interface The D1766-AL multiple-output transformer was developed for use with Linear Technology LTC4267 Power over Ethernet IEEE 802.3af PD Interface with Integrated Switching Regulator. It is ideal for use in telecommunications isolated converters and isolated power supplies. This low-profile transformer is designed for an input volt- age of 36 – 72 Volts. It features interleaved primary and secondary windings to minimize leakage inductance 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. Part   number1 Inductance Inductance   at 0 Adc2   at Ipk3 DCR max ±10% (µH) min (µH) (Ohms)   InLdeuacktaagnec e4 T urns ratio   Ipk3 max (µH) pri : S1  pri : S2,S3 (A) D1766-AL_ 221 200 0.420 (pins ...