Document 853
For Akros AS1135
Flyback Transformers PoE Controller
• Flyback transformers for IEEE802.3at PoE applications
• Input voltage GA3568: 36 – 57 V; HA3809: 10 – 57 V
• 1500 Vrms isolation from primary and bias to secondary
and sync windings.
Core material Ferrite
Terminations RoHS tin-silver over tin over nickel over phos
bronze. Other terminations available at additional cost.
Weight 11.4 – 11.8 g
Ambient temperature –40°C to +125°C
Storage temperature Component: –40°C to +125°C.
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 175 per 13″ reel Plastic tape: 44 mm wide,
0.4 mm thick, 32 mm pocket spacing, 11.9 mm pocket depth
PCB washing Only pure water or alcohol recommended
Inductance Inductance
at 0 A2 at Ipk3
number1 ±±0ꢀ (µH) min (µH) pri sec bias sync
Leakage
inductance5
max (µH)
DCR max (Ohms)4
Turns ratios6
pri : sec pri : bias pri : sync (A)
Part
Ipk3
Output7
GA3568-DL_
HA3809-AL_
60
30
54
25
0.132 0.0055 0.220 0.200
0.042 0.010 0.165 0.165
1.20
0.680
1:0.167 1:0.29 1:0.29
1:0.176 1:0.29 1:0.29
2.6
3.9
3.3 V, 9.1 A
3.3 V, 9.1 A
1. When ordering, please specify termination and packaging codes:
Dot indicates pin 1
12
HA3809-ALD
1
Termination: L = RoHS tin-silver over tin over nickel over phos bronze.
Special order: T = RoHS tin-silver-copper (95.5/4/0.5) or S = non-RoHS tin-lead (63/37).
0.810
20,57
max
Packaging: D = 13″ machine-ready reel. EIA-481 embossed plastic tape (175 parts per full reel).
B = Less than full reel. In tape, but not machine ready. To have a leader and trailer added
($25 charge), use code letter D instead.
6
7
2. Inductance is for the primary, measured at 300 kHz, 0.7 Vrms. For the GA3568-AD inductance is per winding.
3. Peak primary current drawn at minimum input voltage.
4. DCR for the secondary is with the windings connected in parallel. For GA3568-AD DCR for the primary is with
both windings connected in parallel.
1.181
30,00
max
5. Leakage inductance is for the primary windings with the secondary windings shorted.
6. Turns ratios are for the full primary (pni 3 to pin 1) and with the secondary windings connected in parallel.
7. Output of the secondary is with the windings connected in parallel. Bias winding output is 5 V, 20 mA.
8. Electrical specifications at 25°C.
0.425
10,80
max
0.004/0,10
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
0.827
21,00
0.969
24,60
0.080
2,03
GA3568-DL
HA3809-AL
4
3
8
10
8
0.050
1,27
0.930
23,62
10
3
0.028
0,711
7
1
6
1
Pri
Sec
Pri
Sec
1
2
1
9
7
9
7
Recommended
Land Pattern
5
11
5
Bias
6
11
0.118
3,0
Sync
Sync
Bias
12
0.118
3,0
0.130
3,30
6
12
12
Secondary windings to be
connected in parallel on PC board.
Primary windings and secondary
windings to be connected in
parallel on PC board.
inches
mm
Dimensions are in
Specifications subject to change without notice.
Please check our website for latest information.
Document 853 Revised 05/18/10
© Coilcraft, Inc. 2010
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