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Flyback Transformer for
TI Green Mode Controller

  • Triple output flyback transformer
  • Developed for use with Texas Instruments UCC28600 Green Mode Controller.
  • Designed to operate at 50 kHz with universal ac input
  • 3000 Vrms, one minute isolation from primary and bias to secondaries
  • RoHS-compliant. Tin-silver (96.5/3.5) over tin over copper over steel terminations

SPECIFICATIONS


Part number
Click to get parts
L at 0 A1
±10% (mH)
L
at Ipk2
min (mH)
DCR max3
(Ohms)
Leakage
L max4
(µH)
Turns ratio Ipk2
(A)
Outputs
HA4018-AL 2.2 1.7 1.55 (pri)
0.350 (bias)
0.061 (sec 1)
0.305 (sec 2)
0.450 (sec 3)
28.5 6.4 : 1 (pri : bias)
8.2 : 1 (pri : sec 1)
15 : 1 (pri : sec 2)
5.3 : 1 (pri : sec 3)
0.3 +15 V, 0.05 A (sec 1)
+5 V, 0.35 A (sec 2)
–15V, 0.125 A (sec 3)
+12 V, 20 mA (bias)
1 Inductance is for the primary, measured at 50 kHz, 0.1 Vrms, 0 Adc.
2 Peak primary current drawn at minimum input voltage.
3 DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
4 Leakage inductance is for the primary and is measured at 50 kHz, 0.1 Vrms, 0 A with secondary windings shorted.
5 Ambient temperature range: −40°C to +85°C
6 Storage temperature range: Component: −40°C to +85°C
Packaging trays: −40°C to +80°C
7 Resistance to soldering heat: Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between.
8 Electrical specifications at 25°C.
Refer to Soldering Coilcraft Components before soldering.
PCB washing: Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info

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Updated: April 11, 2017