C1453-AL Datasheet, PDF (1/1 Pages) Coilcraft lnc. – Flyback Transformer

Document 483
Flyback Transformer ForTexasInstrumentsTPS23750
PoE Powered Device Controller
• Isolated non-synchronous flyback transformers developed
for Texas Instruments PMP717 reference design.
• Designed for discontinuous conduction mode, 34 – 57 V input
• 1500 Vrms isolation primary to secondary windings
Core material Ferrite
Terminations RoHS tin-silver over tin over nickel over phos
bronze. Other terminations available at additional cost.
Weight 1.4 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 500 per 13″ reel Plastic tape: 24 mm wide,
0.36 mm thick, 16 mm pocket spacing, 6.13 mm pocket depth
PCB washing Only pure water or alcohol recommended
Part
number¹
C1453-AL_
Inductance
at 0 Adc²
±10% (µH)
50
Inductance
at Ipk³
min (µH)
DCR max
(Ohms)
Leakage
Inductance⁴
max (µH)
40
0.185 (pins 3 – 1) 1.10
0.030 (pins 6 – 10)
0.030 (pins 7 – 9)
0.385 (pins 4 – 5)
Turns ratio
pri : sec⁵ pri : bias
1 : 0.166 1 : 0.5
Ipk³
(A)
1.22
Output⁶
3.3 V, 1.5A
1. When ordering, please specify packaging code:
C1453-ALD
Packaging: D = 13″ machine ready reel. EIA-481 embossed plastic
tape (500 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 250 kHz, 0.3 Vrms.
3. Peak primary current drawn at minimum input voltage.
4. Leakage inductance is for the primary winding with the secondary
windings shorted.
5. Turns ratio is with the secondary windings connected in parallel.
6. Output of the secondary is with the windings connected in parallel. Bias
winding output is 10 V.
7. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Dot indicates pin 1
3
1
10
Pri
0.453 _max
1
11,50
4
7
6
Sec
10
9
5
6
0.512 _max
13,00
0.256
6,50
max
Bias
5
Secondary windings to be
connected in parallel on the
PC board.
0.004 / 0,10
5
0.028
0,70
0.063
0.394
6
1,60
10,00
0.079
1
10
2,00
0.079
2,00
1
Dimensions are in
inches
mm
10
0.055
1,40
Recommended
Land Pattern
Specifications subject to change without notice.
Please check our website for latest information.
Document 483 Revised 10/28/08
© Coilcraft, Inc. 2009