Document 708 Flyback Transformer • • • • • For Maxim MAX16801 Off-Line LED Driver Designed for PWM Dimming of High-Brightness LEDs Shown on Maxim MAX16801 demonstration board Bias winding output: 18 V, 20 mA 400 V input; 110 V, 0.4 A output 1500 Vrms, one minute primary and bias to secondary isolation Core material Ferrite Terminations RoHS tin-silver (96.5/3.5) over tin over nickel over phos bronze. Other terminations available at additional cost. Weight 21.3 g Ambient temperature –40°C to +125°C Storage temperature Component: –40°C to +125°C. Tray packaging: –40°C to +80°C Resistance to soldering heat Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles 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 24 parts per tray PCB washing Only pure water or alcohol recommended Inductance Inductance Leakage at 0 Adc1 at Ipk2 Inductance3 Turns ratio Part DCR max pri : sec pri : bias number ±10% (µH) min (µH) (Ohms) max (µH) GA3502-BL 800 720 1.283 (pins 1 – 3)6.60 0.146 (pins 5 – 6) 0.361 (pins 12 – 7) 1. Inductance is for the primary (pins 1 – 3), measured at 250 kHz, 0.3 Vrms. 2. Peak primary current drawn at minimum input voltage. 3. Leakage inductance is for the primary winding (pins 1 – 3) with the secondary winding shorted. 4. Output is for the secondary. Bias winding output is 18 V, 20 mA. 5. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. 1 Pri 2 7 0.108 2,75 1.10 28,0 1 6 Bias Output4 0.75 110 V, 0.4 A 0.551 max 14,0 0.004 / 0,10 mm 1.169 29,7 1.285 max 32,65 0.079 2,0 12 0.043 1,1 1.024 26,0 7 6 Recommended Land Pattern 3 5 (A) Dot indicates pin 1 12 Sec 1 : 0.351 : 0.06 Ipk2 1.053 max 26,75 7 0.157 4,0 6 1 12 0.657 16,7 Dimensions are in US +1-847-639-6400 [email protected] UK +44-1236-730595 [email protected] Taiwan +886-2-2264 3646 [email protected] China +86-21-6218 8074 [email protected] Singapore + 65-6484 8412 [email protected] 0.157 4,0 inches mm Document 708 Revised 12/15/11 © Coilcraft Inc. 2012 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check out web site for latest information.