L6668 Просмотр технического описания (PDF) - STMicroelectronics
Номер в каталоге
Компоненты Описание
производитель
L6668 Datasheet PDF : 23 Pages
| |||
L6668
Figure 46. Typical Application: 80W, WRM flyback; Electrical Schematic
NTC1
F1 T2A250V
J1
88 to264
Vac
BD1
DF04M
C1
100 µF
400 V
C4
100 nF
C3 100 nF
R5 47kΩ
R4
330 kΩ
VREF S-COMP
DIS
STBY 8
13
R8
4.03 kΩ
15
7
L6668
C2
25 V
47 µF
R6
9.1 kΩ
VCC HV
5
14
OUT
ISEN
12
R9
6.2 kΩ
16
RCT 6
N.C.
9
SKIPADJ
11
SS
10
3
COMP GND
C5
3.3 nF
R10
82.5 kΩ
C6
56 nF
R11
47 kΩ
C7
2.2 nF
OC1
PC817A
T1: CORE E32/16/9, N67
PRIM. IND. 430µH; lgap = 1mm
D4
T1 STPS20150CT
R1
3 MΩ
D1
1.5KE200
N1
C8A,B,C
680 µF
N2
25 V
56T
10T
R2
D2
3 MΩ
STTH1L06
R3 10Ω D3 1N4148
C12
2.2 nF
Y1
N3
8T
R710Ω
R12 1kΩ
Q1
R14
STP9NK65 4.3 kΩ
R13A,B
0.56
1/2W
OC1
PC817A
R15
1.2 kΩ
TL431
1
3
2
18V/4.5A
C9
100 nF
J2
GND
R17
8.06 kΩ
C10
100 nF
R16
47 kΩ
R18
1.3 kΩ
Table 6. Light load measurements on the circuit of figure 46
Output power
Test condition
Pout = 0.5 W
Vin= 110 Vac
Vin= 230 Vac
Pout = 0 W
Vin= 110 Vac
Vin= 230 Vac
Input power
0.71 W
0.86 W
0.09 W
0.17 W
20/23
Share Link: 