DA2032-AL Datasheet, PDF (1/2 Pages) Coilcraft lnc. – Flyback Transformers

Document 510-1
Flyback Transformers ForLinearTechnologyLT3750/LT3751
Capacitor Charger Controllers
These surface mount flyback transformers were devel-
oped 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 wind-
ing 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.
Part
number¹
DA2032-AL_
DA2033-AL_
DA2034-AL_
Inductance
at 0 A²
±10% (µH)
10.0
10.0
10.0
Inductance
at Ipk³
min (µH)
9.0
9.0
9.0
DCR max (Ohms)
pri⁴
sec
0.013
0.015
0.018
1.60
1.10
1.75
Leakage
inductance⁵
max (µH)
0.150
0.144
0.250
Ipk³
(A)
3.0
5.0
10.0
Interwinding
capacitance⁶
(pF)
67
76
128
Turns ratio
pri : sec
1 : 10
1 : 10
1 : 10
1. When ordering, please specify packaging code:
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.
10
9
8
7
12
Primary
Secondary
6
1
5
4
3
Primary windings to be connected
in parallel on PC board
Core material Ferrite
Terminations RoHS compliant tin-silver over tin over nickel over
phos bronze. Other terminations available at additional cost.
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.
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 Only pure water or alcohol recommended
Specifications subject to change without notice.
Please check our website for latest information.
Document 510-1 Revised 09/18/09
© Coilcraft, Inc. 2009