DA2032-AL

Document 510-1
Flyback Transformers
For Linear Technology LT3750/LT3751
Capacitor Charger Controllers
These surface mount flyback transformers were developed for use with Linear Technology LT3750 Capacitor
Charger Controller. DA2033-AL and DA2034-AL are
also specified for the LT3751 Controller. They have a
smaller footprint than other transformers designed for
this application.
These low-profile transformers feature 1500 Vrms, one
minute winding to winding isolation and 750 Vrms winding
to core isolation. They are designed to operate with an
input range of 3 – 24 V and to charge a capacitor to 300 V.
They are shown on the Linear Technology LT3750 application note for use in a 300 V, 3 A charging circuit
(DA2032); a 300 V, 6 A charging circuit (DA2033); and a
300 V, 9 A charging circuit (DA2034).
Coilcraft can also custom engineer a transformer to meet
your specific requirements. For free evaluation samples,
contact Coilcraft or visit www.coilcraft.com.
InductanceInductance
Leakage Interwinding
DCR max (Ohms)inductance5
at 0 A2 Ipk3 capacitance6 Turns ratio
Part
at Ipk3
number1
±10% (µH)
min (µH)
pri4 sec
max (µH)
(A)
(pF)
pri : sec
DA2032-AL_ 10.0
9.0
0.0131.60 0.150
3.0 67
1 : 10
DA2033-AL_ 10.0
9.0
0.0151.10 0.144
5.0 76
1 : 10
DA2034-AL_ 10.0
9.0
0.0181.75 0.250 10.0 128
1 : 10
1. When ordering, please specify packaging code:
Core material Ferrite
DA2034-ALD
Packaging:D=13″ machine-ready reel. EIA-481 embossed plastic
tape (DA2032-AL & DA2033-AL: 200 parts per full reel;
DA2034‑AL: 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 is for the primary, measured at 100 kHz, 0.1 Vrms, 0 Adc.
3. Peak primary current drawn at minimum input voltage.
4. DCR is with the primary windings connected in parallel.
5. Leakage inductance is with the primary windings connected in parallel
and with the secondary winding shorted.
6. Capacitance measured at 100 kHz, 0.1 Vrms from pin 3 to pin 1 with all
other pins shorted.
7. Electrical specifications at 25°C.
Terminations RoHS compliant tin-silver over tin over nickel over
phos bronze. Other terminations available at additional cost.
10
9
8
7
12
Primary
Secondary
1
6
5
4
3
Weight DA2032: 5.9 g; DA2033: 8.2 g; DA2034: 14.1g
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 DA2032-AL 200 per 13″ reel. Plastic tape: 44 mm wide, 0.4 mm
thick, 28 mm pocket spacing, 9.6 mm pocket depth
DA2033-AL 200 per 13″ reel. Plastic tape: 44 mm wide, 0.4 mm
thick, 24 mm pocket spacing, 10.56 mm pocket depth
DA2034-AL 175 per 13″ reel. Plastic tape: 44 mm wide, 0.4 mm
thick, 32 mm pocket spacing, 11.9 mm pocket depth
PCB washing Tested with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf.
Primary windings to be connected
in parallel on PC board
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 510-1 Revised 02/09/11
© 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.
Document 510-2
Flyback Transformers for Linear LT3750
DA2032-AL
Dot indicates pin 1
12
1
0.135
3,43
0.028
0,72
0.665
16,88
1
0.070
1,79
DA2032-AL
0.677
max
17,20
XXXX Y
6
7
0.098
2,5
0.865
max
21,97
Recommended
Land Pattern
0.098
2,50
0.350
max
8,89
0.079
2,01
DA2033-AL
0.004 /0,10
0.590
14,98
0.693
17.60
Dot indicates pin 1
12
1
0.130
3,30
0.028
0,711
1
0.748
19,0
0.070
1,79
DA2033-AL
0.685 max
17,40
XXXX Y
6
7
0.950 max
24,13
0.100
2,54
Recommended
Land Pattern
0.100
2,54
0.385
max
9,78
0.076
1,93
DA2034-AL
0.004 /0,10
0.699
17,0
0.799
20,3
Dot indicates pin 1
12
1
0.028
0,711
0.130
3,30
0.930
23,62
1
DA2034-AL
0.810
max
20,57
Recommended
Land Pattern
XXXX Y
6
7
1.181
max
30,00
0.050
1,27
0.118
3,00
0.118
3,0
Internal code
Parts manufactured prior
to September 2011 may be
marked differently.
0.450
max
11,43
0.827
21,00
0.080
2,03
0.004 /0,10
0.969
24,60
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]
Dimensions are in
inches
mm
Document 510-2 Revised 02/09/11
© 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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