Circuit-, IC descriptions and list of abbreviations
EN 145
LX7500R
9.
9.8.3 ICs Digital Board Chrysalis
IC7106 NCP303LSN29, Digital Board 2.1 Chrysalis, Reset Circuit
IC7501 NCP1570D, Digital Board 2.1 Chrysalis, DC/DC Converter Control
NCP303LSNxxT1
Open Drain Output Configuration
V
ref
2
Input
3
Gnd
5
C
D
R
D
1
Reset Output
NCP1570
Figure 2. Block Diagram
–
+
UVLO COMP
–
+
–
+
–
+
Fault Latch
Set Dominant
+
–
0.25 V
Error Amp
–
R
S
Q
PWM Latch
Reset Dominant
PWM COMP
+
Σ
OSC
Art Ramp
80%, 200 kHz
0.525 V
+
–
8.5 V/7.5 V
+
–
0.985 V
S
R
Q
V
CC
GND
V
FB
COMP
GATE(H)
GATE(L)
PGDELAY
PWRGD
Non
Overlap
V
CC
+
–
0.89 V/0.69 V
+
–
+
–
0.25 V
S
R
Q
PGDELAY Latch
Set Dominant
–
+
+
–
3.3 V
12
µ
A
+
–
Содержание LX7500R
Страница 60: ...Diagnostic Software EN 60 LX7500R 5 ...
Страница 103: ...EN 103 7 LX7500R Circuit Diagrams and PWB Layouts uP Sub Board top view uP Sub Board bottom view ...
Страница 125: ...Circuit IC descriptions and list of abbreviations EN 125 LX7500R 9 9 3 5 Video routing Figure 9 1 Video IO Europe ...
Страница 129: ...Circuit IC descriptions and list of abbreviations EN 129 LX7500R 9 9 4 4 Video routing Figure 9 3 Video IO Nafta ...
Страница 136: ...Circuit IC descriptions and list of abbreviations EN 136 LX7500R 9 Figure 9 9 ...
Страница 137: ...Circuit IC descriptions and list of abbreviations EN 137 LX7500R 9 Figure 9 10 ...
Страница 141: ...Circuit IC descriptions and list of abbreviations EN 141 LX7500R 9 IC7411 NJM2285 Analog Board Video Switch ...