L6590 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
L6590 Datasheet PDF : 23 Pages
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L6590
Figure 24. Test Board (1) with Primary Feedback: Electrical Schematic
F1
2A/250V
Vin
88 to 264 Vac
BD1
DF06M
C1
22 µF
400 V
D1
BZW06-154
D2
STTA106
T1 D4 BYW100-100
L1 Vo =12 V ± 10%
4.7 µH Po= 1 to 10 W
C7, C8
330 µF
16 V
C9
100 µF
16 V
R1 68 Ω
1
3
L6590
IC1
R2
5.6 kΩ
C5 R3
680 nF 1.1 kΩ
4
6, 7, 8
5
C6
10 nF
C4
100 nF
R5
110 Ω
R4
1.5 kΩ
C2
D3
22 µF 1N4148
25 V
C7
2.2 nF
Y
T1 specification
Core E20/10/6, ferrite 3C85 or N67 or equivalent
≈0.5 mm gap for a primary inductance of 2.9 mH
Lleakage <90 µH
Primary : 180 T, 2 series windings 90T each, AWG33 (∅ 0.22 mm)
Sec : 19 T, AWG30 (∅ 0.3 mm)
Aux : 19 T, AWG33
Figure 25. Test Board (1) Evaluation Data
Output Voltage [V]
13.5
1W
13
Load & Line regulation
12.5 2.5 W
12 5 W
Pout =
10 W
11.5
50
100
150
200
250
Input Voltage [Vac]
Efficiency [%]
86
84
82
80
78
76
74
72
300
50
100
Efficiency
150
200
Input Voltage [Vac]
Pout =
10 W
5W
2.5 W
1W
250
300
10/23
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