GA3568 Datasheet, PDF (1/1 Pages) Coilcraft lnc. – Flyback Transformers

Document 853
Flyback Transformers ForAkrosAS1135
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
Part
at 0 A²
at Ipk³
DCR max (Ohms)⁴
Leakage
inductance⁵
Turns ratios⁶
Ipk³
number¹ ±10% (µH) min (µH) pri sec bias sync max (µH) pri : sec pri : bias pri : sync (A)
GA3568-DL_
60
HA3809-AL_
30
54
0.132 0.0055 0.220 0.200 1.20
1 : 0.167 1 : 0.29 1 : 0.29 2.6
25
0.042 0.010 0.165 0.165 0.680
1 : 0.176 1 : 0.29 1 : 0.29 3.9
Output⁷
3.3 V, 9.1 A
3.3 V, 9.1 A
1. When ordering, please specify termination and packaging codes:
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).
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.
2. Inductance is for the primary, measured at 300 kHz, 0.7 Vrms. For the GA3568-AD inductance is per winding. ⁶
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.
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.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
0.004 /0,10
GA3568-DL
4
3
Pri
HA3809-AL
8
10
3
Sec Pri
10
8
Sec
1
0.930
23,62
0.050
1,27
6
Dot indicates pin 1
12
0.810 _max
20,57
7
1.181 _max
30,00
0.827
21,00
0.969
24,60
0.425
10,80
max
0.080
2,03
0.028
0,711
7
1
9
2
7
5
11
Bias
Sync
6
12
Secondary windings to be
connected in parallel on PC board.
1
9
7
Recommended
5
11
Land Pattern
Bias
Sync
6
12
Primary windings and secondary
windings to be connected in
parallel on PC board.
0.130
3,30
Dimensions
are
in
inches
mm
0.118 ₁
3,0
12 _0.118
3,0
Specifications subject to change without notice.
Please check our website for latest information.
Document 853 Revised 05/18/10
© Coilcraft, Inc. 2010