Document 994
For TI TPS23753 PoE Interface
Flyback Transformers and Converter Controller
These three parts are improved versions of the HA3801-AL,
HA3802-AL and HA3803-AL, which are not recommended for
new designs.
• Windings optimized for hiccup overload protection
• 1500 Vrms, one minute isolation primary and bias to second-
ary windings
Core material Ferrite
Terminations RoHS tin-silver (96.5/3.5) 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 to MIL-STD-202 Method 215 plus an addi-
tional aqueous wash. See Doc787_PCB_Washing.pdf.
Leakage L5
max (µH)
L at0A2 LatIpk3
DCR max (Ohms)
Turns ratio
Part
±±0ꢀ
(µH)
min
Ipk3
Drive
output
number1
(µH)
pri
sec4 drive bias pri drive pri:sec6 pri:drive pri:bias (A)
Output7
HA3801-BL_ 166.5
HA3802-BL_ 150.0
HA3803-BL_ 166.5
150.0 0.735 0.0270 0.510 1.05 2.50 0.41 1:0.154 1:0.27 1:0.50 1.2 3.3 V, 3 A 5.6 V, 10 mA
135.0 0.520 0.0275 0.560 0.88 1.90 0.40 1:0.25
150.0 0.760 0.103 0.475 1.10 1.80 0.25 1:0.50
1:0.31 1:0.44 1.2
1:0.25 1:0.50 1.2 12 V, 0.83 A 6.0 V, 10 mA
5 V, 2 A
7.5 V, 10 mA
1. When ordering, please specify packaging code:
HA3803-BLD
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 12 V, 20 mA.
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.
3. Peak primary current drawn at minimum input voltage.
8. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
0.07
1,79
0.028
0,72
Dot indicates pin 1
1
Internal code
0.135
3,43
0.665
16,88
12
11
3
1
12
12
7
Primary
Secondary
0.677
max
17,20
9
10
5
6
8
Drive
7
2
0.098
2,5
0.098
2,5
Recommended
Land Pattern
0.866
Bias
max
22,0
1
The secondary windings are to be
connected in parallel on the PC board.
0.350
max
8,89
0.004/0,10
0.590
14,98
inches
mm
Dimensions are in
0.079
2,01
0.693
17,60
Document 994 Revised 04/10/17
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
© Coilcraft Inc. 2017
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.
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