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AN3407 Fiches technique(PDF) 21 Page - STMicroelectronics

No de pièce AN3407
Description  Resonant driver for LED SMPS demonstration board
PDF  25 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN3407 Fiches technique(HTML) 21 Page - STMicroelectronics

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AN3407
PFC coil specifications
Doc ID 018857 Rev 1
21/25
8
PFC coil specifications
Figure 29.
PFC: QP2520V-vertical type for PFC choke
Note:
Class B insulation system: SBI4.2
with standing voltage: 1.0 kV/3 sec/AC/5 mA, primary to secondary, 0.5 kV/1 sec/AC/3 mA,
primary to core, 0.5 kV/1 sec/AC/3 mA, secondary to core
Table 5.
Transformer specifications
Core spec-QP2520
Ae
118.0 mm2
Le
46 mm
Wiring spec. for resonant transformer
No.
Start
Finish
Wire
Winding
Turns
Inductance
DCR (m
Ω)
L1
1.2
3.4
0.1
Φ 35c*
1p(Litz)
Primary
62
±0.5 580 µH ±10%
280 max.
L2
7
6
0.3
Φ* 1c
AUX
6
±0.5



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