HA4018-AL

Document 724
Flyback Transformer
For Texas Instruments UCC28600
Flyback Green Mode Controller
• Triple-output flyback transformer
• Designed to operate at 50 kHz with universal ac input
• 3000 Vrms, one minute 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.
Tray 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
L at 0 A1
L at Ipk2
number
±10% (mH) min (mH)
HA4018-AL
2.2
1.7
DCR max Leakage L3Turns Ipk2
(Ohms)
max (µH)
ratios
(A)
Outputs
1.55 (pri)
28.5
6.4 : 1(pri : bias)
0.3
+15 V, 0.05 A (sec 1)
0.350 (bias)
8.2 : 1(pri : sec 1)
+5 V, 0.35 A (sec 2)
0.061 (sec 1)
15 : 1(pri : sec 2)
–15V, 0.125 A (sec 3)
0.305 (sec 2)
5.3 : 1(pri : sec 3)
+12 V, 20 mA (bias)
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.
1
5
Pri
6
2
3
Bias
4
0.472
max
12,0
+15 V @ 0.05 A
Sec1
+5 V @ 0.35 A
8
0.134
3,4
GND
Sec3
–15 V @ 0.125 A
0.024
0,6
0.689
17,5
0.130 min
3,3
Sec2
7
0.823
max
20,9
Dot indicates pin 1
4
0.689
17,5
5
0.197
5,0
0.197
5,0
1
8
0.823
max
20,9
Dimensions are in
0.041
1,03
1
8
4
5
Recommended
PC Board Layout
inches
mm
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]
Document 724 Revised 09/29/09
© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.