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Número de pieza
componentes Descripción
FL7930BG Ver la hoja de datos (PDF) - ON Semiconductor
Número de pieza
componentes Descripción
Fabricante
FL7930BG
Single-Stage Flyback and Boundary-Mode PFC Controller for Lighting
ON Semiconductor
FL7930BG Datasheet PDF : 25 Pages
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Internal Block Diagram
V
CC
V
REF
V
BIAS
V
CC
2.5V
REF
H:open
Internal
Bias
reset
ZCD
5
INV
1
COMP
3
OVP
2
-
+
V
TH(ZCD)
THD
Optimized
Sawtooth
Generator
Control Range
Compensation
+
-
Overshoot-less
Control
V
REF
V
REF
Stair
Step
-
+
Clamp
Circuit
reset
Restart
Tmer
S
Q
R
Q
f
MAX
Limit
V
IN
Absent
disable
-
V
REF
+
INV_open
OVP
0.35 0.45
V
OVP,LH
+
-
disable
2.5 2.88
disable
2.5 2.675
Figure 3. Functional Block Diagram
8.5 12
8
V
CC
-
V
Z
+
V
TH(S/S)
V
CC
Gate
Driver
V
O(MAX)
7
OUT
+
-
V
CS_LIM
40k
W
8pF
4
CS
6
GND
Thermal
Shutdown
© 2010 Fairchild Semiconductor Corporation
FL7930B
•
Rev. 1.0.4
3
www.fairchildsemi.com
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