HA4018-AL Datasheet, PDF (1/1 Pages) Coilcraft lnc. – Flyback Transformer

Document 724
Flyback Transformer ForTexasInstrumentsUCC28600
Flyback Green Mode Controller
• Triple-output flyback transformer
• Designed to operate at 50 kHz with universal ac input
• 3000 Vrms isolation from primary and bias to secondaries
Core material Ferrite
Terminations RoHS compliant tin-silver over tin over copper over
steel. Other terminations available at additional cost.
Weight 9.7 g
Ambient temperature –40°C to +85°C
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 100 per tray
PCB washing Only pure water or alcohol recommended
Part
number
HA4018-AL
L at 0 A¹
±10% (mH)
2.2
L at Ipk²
min (mH)
1.7
DCR max
(Ohms)
1.55 (pri)
0.350 (bias)
0.061 (sec 1)
0.305 (sec 2)
0.450 (sec 3)
1. Inductance is for the primary, measured at 50 kHz, 0.1 Vrms, 0 Adc.
2. Ipk is peak primary current drawn at minimum input voltage.
3. Leakage inductance is for the primary winding, measured at 50 kHz,
0.1 Vrms, 0 A with all secondary pins shorted.
4. Electrical specifications at 25°C.
Leakage L³
Turns
Ipk²
max (µH)
ratios
(A)
Outputs
28.5
6.4 : 1 (pri : bias) 0.3 +15 V, 0.05 A (sec 1)
8.2 : 1 (pri : sec 1)
+5 V, 0.35 A (sec 2)
15 : 1 (pri : sec 2)
–15V, 0.125 A (sec 3)
5.3 : 1 (pri : sec 3)
+12 V, 20 mA (bias)
Dot indicates pin 1
0.823
20,9
max
0.472
12,0
max
1
Pri
2
3
Bias
4
5 _{+15 V @ 0.05 A}
Sec1
6 _{+5 V @ 0.35 A}
Sec2
7 _GND
Sec3
8 _{–15 V @ 0.125 A}
0.130
3,3
min
4
0.197
5,0
0.689
17,5
0.134
3,4
0.024
0,6
Æ
0.689
17,5
5
1
8
0.197
5,0
© Coilcraft, Inc. 2009
1
0.823
20,9
max
Dimensions are in
inches
mm
Specifications subject to change without notice.
Please check our website for latest information.
4
5
8
0.041
1,03
Æ
Recommended
PC Board Layout
Document 724 Revised 09/29/09