C1173-AL

Document 439
Flyback Transformers
For Texas Instruments TPS23750
PoE Powered Device Controller
• Isolated synchronous flyback transformers developed for Texas
Instruments PMP929 reference design.
• Operates up to 500 kHz with 18 – 72 V input
• 1500 Vrms, one minute isolation primary and bias to secondary
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,
0.35 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
Leakage L5
L at 0 A2 L at Ipk3 max (µH)
Turns ratio Ipk3
Part ±10% min
DCR max (Ohms) Drive
number1(µH) (µH) pri sec4 drive bias pri drive pri : sec6pri : drivepri : bias(A) Output7output
C1173-AL_166.5 150.0 0.7700.0200.523 1.12 2.50 0.400 6.5 : 13.7 : 12.0 : 1 1.23.3 V, 3 A 5.6 V, 10 mA
C1174-AL_150.0 135.0 0.515 0.023 0.570 0.88 2.00 0.400 5.0 : 13.2 : 12.25 : 1 1.2 5.0 V, 2 A 7.5 V, 10 mA
GA3562-BL_166.5
150.0 0.740 0.100 0.456 1.15 2.05 0.245
2.0 : 14.0 : 12.0 : 1 1.212 V, 0.83 A 6.0 V, 10 mA
1. When ordering, please specify packaging code:
C1174-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.
3. Peak primary current drawn at minimum input voltage.
Dot indicates pin 1
1
12
1
0.665
16,88
12
0.07
1,79
7
0.865 max
21,97
0.098
2,5
Recommended
Land Pattern
0.098
2,5
Parts manufactured prior
to December 2011 may
be marked differently.
0.335 max
8,51
0.590
14,98
0.693
17,60
Secondary
9
10
8
5
XXXX Y
6
12
11
3
Primary
C117x-AL
0.677 max
17,20
0.079
2,01
0.135
3,43
0.028
0,72
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. Bias
winding output is 10 V, 20 mA.
8. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
2
Bias
Drive
1
7
The secondary windings are to be
connected in parallel on the PC board.
0.004 /0,10
Dimensions are in
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 439 Revised 12/21/11
© 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.
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