Coilcraft JA4173-ALD Flyback transformer Datasheet

Document 788
Flyback Transformers
For STMicroelectronics PM8803
PoE Plus Powered Device Controller
• Designed to operate at 250 kHz in continuous conduction
mode with 42 – 57 Volts input
• 1500 Vrms, one minute isolation from the primary and bias
windings to the secondary windings
Core material Ferrite
Terminations RoHS tin-silver over tin over nickel over phos bronze.
Other terminations available at additional cost.
Weight 6.5 g
Ambient temperature –40°C to +85°C
Storage temperature Component: –40°C to +85°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 175 per 13″ reel Plastic tape: 32 mm wide,
0.5 mm thick, 28 mm pocket spacing, 12.93 mm pocket depth
PCB washing Only pure water or alcohol recommended
Inductance Inductance
Leakage
4
6
Part
Power at 0 A2
at Ipk3 DCR max (Ohms)
inductance5 Turns ratio
1
number
(W) ±10% (µH) min (µH)
pri
sec
bias
max (µH)
pri : sec pri : bias
HA3691-AL_
JA4173-AL_
20
20
100
100
90.0
90.0
0.185 0.0085 0.340
0.211 0.0060 0.404
0.805
1.60
1 : 0.25 1 : 0.469
1 : 0.156 1 : 0.50
Ipk3
(A)
Output7
1.3
1.3
5 V, 4 A
3.3 V, 6 A
1. When ordering, please specify packaging code:
HA3691-ALD
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 measured at 250 kHz, 0.2 Vrms, 0 Adc.
3. Peak primary current drawn at minimum input voltage.
4. DCR for the secondary is with windings connected in parallel.
5. Leakage inductance is for the primary and is measured with the secondary shorted.
6. Turns ratio is with the 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.
0.080
2,03
0.590
14,99
Dot above pin1
0.500 max
12,70
0.004 /0,10
0.039
1,00
0.699 max
17,75
0.050
1,27
0.512
13,00
10
1
Recommended
Land Pattern
1
Secondary windings to be connected
in parallel on PC board
0.028
0,70
0.530 max
13,46
0.098
2,50
5
6
Dimensions are in
These
are preproduction
products for electrical evaluation only.
USparts
+1-847-639-6400
[email protected]
Specification subject
to change without notice.
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]
inches
mm
Document 788
0.098
2,50
Revised 03/31/11
© 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.
Similar pages