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HA3801-ALD Datasheet, PDF (1/1 Pages) Coilcraft lnc. – Flyback Transformers
Document 696
Flyback Transformers ForTITPS23753PoEInterface
and Converter Controller
• Isolated synchronous flyback transformers developed for Texas
Instruments TPS23753 for use at 125 kHz.
• Windings optimized for hiccup overload protection
• 1500 Vrms, one minute isolation primary and bias to secondary
windings
Core material Ferrite
Terminations  RoHS tin-silver over tin over nickel over phos bronze.
Other terminations available at additional cost.
Weight  5.0 – 5.3 g
Ambient temperature  –40°C to +125°C
Storage temperature  Component: –40°C to +125°C.
Tape and reel 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  200 per 13″ reel  Plastic tape:  44 mm wide, 0.4 mm thick,
28 mm pocket spacing, 9.6 mm pocket depth
PCB washing  Tested with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf
  L at 0 A2   L at Ipk3      Leakage L5
Part ±10% min   DCR max (Ohms)
max (µH) Turns ratio      Ipk3
  number1 (µH) (µH) pri   sec4 drive bias pri  drive pri : sec6 pri : drive pri : bias (A)   Output7
Drive
output
HA3801-AL_ 166.5
* HA3802-AL_150.0
* HA3803-AL_166.5
150.0
135.0
150.0
0.735 0.0225 0.510 0.985 2.50 0.45
0.520 0.0275 0.525 0.770 2.00 0.40
0.760 0.101 0.500 1.10 2.05 0.245
6.5 : 1
5.0 : 1
2.0 : 1
3.7 : 1
3.2 : 1
4.0 : 1
2.0 : 1
2.25 : 1
2.0 : 1
1.2 3.3 V, 3 A 5.6 V, 10 mA
1.2 5.0 V, 2 A 7.5 V, 10 mA
1.2 12 V, 0.83 A 6.0 V, 10 mA
1. When ordering, please specify packaging code:
HA3803-ALD
Packaging: D = 13″ machine ready reel. EIA-481 embossed plastic
tape (200 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 100 kHz, 0.1 Vrms.
* HA3802-AL and HA3803-AL ar not available for new designs. See
HA3802-BL and HA3803-BL for improved versions of these parts
3. Peak primary current drawn at minimum input voltage.
4. DCR for secondary is with windings connected in parallel.
5. Leakage inductance for the primary is with the secondary and drive
windings shorted; leakage inductance for the drive winding is with the
secondary windings shorted.
6. Turns ratio is with both secondary windings connected in parallel.
7. Output of the secondary is with the windings connected in parallel.
10 W output from 36 – 57 V PoE input or 24 V adapter; 6 W output from
12 V adapter. Bias winding output is 10 V, 20 mA.
8. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Dot indicates pin 1
1
0.677
17,20
max
6
HA380x-AL
XXXX Y
0.865
21,97
max
0.335
8,51
max
0.079
2,01
0.590
14,98
0.693
17,60
0.028
0,72
12
0.135
3,43
1
0.665
16,88
0.07
1,79
12
7 0.098
2,5
Parts manufactured prior
to December 2011 may
be marked differently.
Recommended
Land Pattern
0.004 /0,10
Dimensions are in
inches
mm
0.098
2,5
3
Primary
12
11
Secondary
5
9
10
2
8
Bias
Drive
1
7
The secondary windings are to be
connected in parallel on the PC board.
US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg
Document 696  Revised 08/01/12
© 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.