L6590A View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
L6590A Datasheet PDF : 19 Pages
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L6590A
APPLICATION IDEAS
Figure 32. 15W Auxiliary SMPS for PC
Vin = 200 to 375 Vdc
T1 D4 STPS10L25D
L1
4.7 µH
5 Vdc / 3 A
D1
BZW06-154
D2
STTA106
C5, C6, C7
470 µF
10 V
C8
100 µF
10V
R2
1.8 MΩ
C1
10 nF
1
3
IC1
5 L6590A 4
R3
20 kΩ
6, 7, 8
R1 10 Ω
C2
22 µF
25 V
D3
1N4148
C3
47 nF
OP1
PC817
C4
2.2 nF
Y
R4
560 Ω
4
1
R5
2.43 kΩ
3
2
R7
240 Ω
C9
1 3 470 nF
2
IC2
TL431
R6
2.43 kΩ
T1 specification
Core E20/10/6, ferrite 3C85 or N67 or equivalent
≈ 0.9 mm gap for a primary inductance of 2 mH
Lleakage <50 µH
Primary : 200 T, 2 series windings 100T each, AWG33 (∅ 0.22 mm)
Sec : 9 T, 2 x AWG23 (∅ 0.64 mm)
Aux : 21 T, AWG33
Figure 33. 10W AC-DC Adapter
CxA
Vin
100 nF
88 to 264 Vac
L
22 mH
F1
2A/250V
CxB
100 nF
BD1
DF06M
C1
22 µF
400 V
D1
BZW06-154
D2
STTA106
T1 D4 STPS3L60S
L1
4.7 µH
C6, C7
330 µF
16 V
C8
100 µF
16 V
R2
1.8 MΩ
C3
10 nF
1
3
IC1
5 L6590A 4
R3
39 kΩ
6, 7, 8
R1 10 Ω
C2
22 µF
25 V
D3
1N4148
C4
47 nF
R4
100 Ω
OP1
PC817
4
1
3
2
T1 specification
Core E20/10/6, ferrite 3C85 or N67 or equivalent
≈0.5 mm gap for a primary inductance of 1.6 mH
Lleakage <30 µH
Primary : 130 T, 2 series windings 65T each, AWG33 (∅ 0.22 mm)
Sec : 14 T, AWG26 (∅ 0.4 mm)
Aux : 14 T, AWG33
C5
2.2 nF
Y
D5
BZX79C10
12 Vdc / 0.8 A
R5
1 kΩ
REFERENCES
[1] “Getting Familiar with the L6590 Family, High-voltage Fully Integrated Power Supply” (AN1261)
[2] “Offline Flyback Converters Design Methodology with the L6590 Family” (AN1262)
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