Document 607 PFC Boost Inductor For ON Semiconductor NCP1606 PFC Controller • Designed to operate in 100 Watt applications. • Referenced as LBOOST in application note AND8282/D. • Auxiliary winding provides zero current detection (ZCD) information and can also supply power to the NCP1606. • 1000 Vrms winding to winding and winding to core isolation Core material Ferrite Terminations RoHS compliant tin-silver over tin over copper over copper-steel Weight 27.2 g Ambient temperature –40°C to +85°C with Irms current, +85°C to +125°C with derated current Storage temperature Component: –40°C to +85°C. Packaging: –40°C to +80°C Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C / 85% relative humidity) Failures in Time (FIT) / Mean Time Between Failures (MTBF) 38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332 Packaging 36 parts per tray PCB washing Only pure water or alcohol recommended Part number Inductance1 ±15% (µH) Inductance at Ipk min (µH) Ipk (A) FA2890-AL 400.0 340.0 3.7 DCR max (Ohms)2 pri aux 0.27 1. Inductance measured at 100 kHz, 0.1 V, 0 Adc using an Agilent/ HP 4284A impedance analyzer or equivalent. 2. DCR measured on Cambridge Technology micro-ohmmeter. 3. Leakage inductance is for the primary and measured with pins 4 and 8 shorted. 4. Current that causes a 40ºC temperature rise from 25°C ambient. 5. Electrical specifications at 25°C. Leakage inductance3 max (µH) Turns ratio pri : aux Irms4 (A) 50.0 10 : 1 2.2 0.345 1.122 max 28,50 0.830 max 21,10 1 Pri 5 4 Aux 8 Irms Derating 0.787 ±0.008 20,0 ±0.20 120 110 0.031 0,80 100 90 80 4 70 0.054 1.37 5 1.025 max 26,04 60 50 1 40 1 0.591 15,0 0.197 5,00 Recommended Board Layout 30 20 0.787 20,0 8 25°C Percent of rated Irms 1.275 ±0.225 3,235 ±0,575 10 0 -40 -20 0 20 40 60 80 100 120 140 Ambient temperature (°C) Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2009 Document 607 Revised 12/23/08