Coilcraft MA5401-AEC Flyback / buck transformer Datasheet

Document 924B-1
Flyback / Buck Transformer
for TI UCC25230
Switching Converter
The MA5401-AE was developed for use with the Texas Instruments UCC25230 Switching Converter (12 – 100 V input,
0.20 A output).
It is designed to meet UL60950 Functional Isolation for
working voltage up to 210 V peak.
With 1000 Vrms (1500 Vdc) hipot and a small package size,
this transformer is ideal for use in high density isolated circuit
applications.
It provides tight coupling (k > 0.99), high inductance and
excellent current handling in a rugged, low cost part.
SHS
D1
+
VIN
L1
SLS
CIN
+
L2
Co
VPRI
VOUT
CPRI
–
0.189 ±0.003
4,80 ±0,08
Dot indicates pin 1
1
–
Typical Flyback / Buck Converter
4
XXX X
2
Dash
number
0.189 ±0.003
4,80 ±0,08
3
Internal
code
0.114 ±0.004
2,90 ±0,10
Recommended
Land Pattern
0.138
3,50
0.090
2,30
45°
typ
0.134 0.090
3,40 2,30
0.060
1,52
1
4
L1
2
L2
1:1
3
0.030
0,75
0.197
5,00
0.059
1,50
0.134
3,40
0.197
5,00
Dimensions are in
Core material Ferrite
Environmental RoHS compliant, halogen free
Terminations RoHS compliant silver-palladium-platinum-glass frit.
Other terminations available at additional cost.
Weight 210 – 225 mg
Ambient temperature –40°C to +125°C (Ambient temperature
+ self-heating must not exceed a part temperature of 125°C. See
notes for calculating temperature rise due to self-heating.)
Storage temperature Component: –40°C to +125°C.
Tape and reel packaging: –40°C to +80°C
Winding to winding isolation 1500 Vdc
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 750/7″ reel; 2500/13″ reel Plastic tape: 12 mm wide,
0.32 mm thick, 8 mm pocket spacing, 3.1 mm pocket depth
Recommended pick and place nozzle OD: 5 mm; ID: ≤ 2.5 mm
PCB washing Tested with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf.
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 924B-1
Revised 09/17/12
© 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.
Document 924B-2
MA5401-AE for TI UCC25230 Switching Converter
Part
Inductance2
DCR max3
number1
±20% (µH)
(Ohms)
MA5401-AE_ 220
5.25
SRF typ4
(MHz)
Coupling
coefficient
typ
Leakage
inductance5
typ (µH)
6.5
>0.99
0.541
Isat (A)6 Hipot7
10% drop 20% drop 30% drop
(Vdc)
0.16
0.21
0.24
1. When ordering, please specify packaging code:
Temperature rise calculation based on current
MA5401-AEC
Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic
tape (750 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.
D = 13″ machine-ready reel. EIA-481 embossed plastic
tape. Factory order only, not stocked (2500 parts per
full reel).
2. Inductance shown for each winding, measured at 100 kHz, 0.1 Vrms,
0 Adc on an Agilent/HP 4284A LCR meter or equivalent. When leads
are connected in parallel, inductance is the same value. When leads are
connected in series, inductance is four times the value.
3. DCR is for each winding. When leads are connected in parallel, DCR is
half the value. When leads are connected in series, DCR is twice the value.
4. SRF measured using an Agilent/HP 4191A or equivalent. When leads
are connected in parallel, SRF is the same value.
5. Leakage Inductance is for L1 and is measured with L2 shorted.
6. DC current, at which the inductance drops the specified amount from its
value without current. It is the sum of the current flowing in both windings.
7. Hipot production tested 100% at 1800 Vdc for 2 seconds.
8. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Winding power loss = (IL12 + IL22 ) × DCR in Watts (W)
157°C
Temperature rise = Winding power loss ×
W
1500
Equal current in each winding (0.15 A):
Winding power loss = (0.15 2 + 0.15 2) × 5.25 = 0.236 W
157°C = 37°C
Temperature rise = 0.236 W ×
W
Unequal current (IL1 = 0.21 A, IL2 = 0.06 A):
Winding power loss = (0.21 2 + 0.06 2) × 5.25 = 0.250 W
157°C = 39.3°C
Temperature rise = 0.250 W ×
W
Typical Current Derating
100
90
80
70
60
50
40
30
25°C
Percent of rated current
120
110
20
10
0
-40
-20
0
20
40
60
80
100
120 140
Ambient temperature (°C)
Typical L vs Current
Typical L vs Frequency
1000
800
700
Inductance (µH)
600
500
400
300
200
100
0.1
1
10
100
Frequency (MHz)
These
are preproduction
products for electrical evaluation only. Document 924B-2 Revised 09/17/12
USparts
+1-847-639-6400
[email protected]
Specification subject
to change without notice.
UK +44-1236-730595
[email protected]
© Coilcraft Inc. 2013
This product may not be used in medical or high
Taiwan +886-2-2264 3646 [email protected]
risk applications without prior Coilcraft approval.
China +86-21-6218 8074 [email protected]
Specification subject to change without notice.
Please check web site for latest information.
Singapore + 65-6484 8412 [email protected]
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