L6590A データシートの表示（PDF） - STMicroelectronics
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L6590A Datasheet PDF : 19 Pages
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Figure 19. Coss vs. Drain Voltage
Coss [pF]
250
Tj = 25 °C
200
150
100
50
0
0 100 200 300 400 500 600 700
Vdrain [V]
Figure 21. Test Board electrical schematic
L6590A
Figure 20. Standby Function Thresholds
Drain Peak Current [mA]
220
200
22 kHz → 65 kHz
180
160
140
120
100
65 kHz → 22 kHz
80
60
-50
0
50
100
150
Tj [°C]
CxA
Vin
100 nF
88 to 264 Vac
L
22 mH
R5 1.8 MΩ
R6 39 kΩ
F1
2A/250V
CxB
100 nF
BD1
DF06M
C1
22 µF
400 V
T1 D4 1N5821
D1
BZW06-154
D2
STTA106
R1 10 Ω
C5, C6, C7
470 µF
16V
Rubycon ZL
L1
4.7 µH 5 Vdc / 2 A
C8
220 µF
10V
Rubycon
ZL
1
3
IC1
5
4
L6590A
6, 7, 8
C2
22 µF
25V
D3
1N4148
R2
560 Ω
C3
22 nF
OP1 4
PC817
3
R6
6.8 kΩ
C4
2.2 nF
Y1 class
1
2
R5
2 kΩ
C9
1
100 nF
3
2
IC2
TL431
R3
2.43 kΩ
R4
2.43 kΩ
T1 specification
Core E20/10/6, ferrite 3C85 or N67 or equivalent
≈0.6 mm gap for a primary inductance of 1.4 mH
Lleakage <30 µH
Primary : 128 T, 2 series windings 64T each, AWG32 (∅ 0.22 mm)
Sec : 6 T, 4xAWG32
Aux : 14 T, AWG32
9/19
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