Publicité
INV
V CC
2
RCT
3
DC
14
DIS
2.5V
OVER CURRENT
13
ISEN
1.2V
SS
7
VREF
STAND-BY
LCD02TC
First issue 11 / 04
IC1 (LCD 30" Power Supply Board ) - L6561D
COMP
1
-
2.5V
+
VOLTAGE
OVER-VOLTAGE
REGULATOR
DETECTION
8
INTERNAL
SUPPLY 7V
20V
R1
+
UVLO
R2
-
V REF2
2.3V
-
1.8V
+
6
5
GND
ZCD
IC2 (LCD 30" Power supply Board ) - L5991AD
SYNC
DC-LIM
1
15
TIMING
+
-
T
DIS
-
+
IC2 L5991AD
BLANKING
PWM
FAULT
+
SOFT-START
-
2R
1V
R
12
16
ST-BY
SGND
MULT
2
3
MULTIPLIER
5pF
+
-
IC1
R
Q
L6561D
S
DRIVER
ZERO CURRENT
DETECTOR
STARTER
DISABLE
V cc
8
25V
+
15V/10V
PWM UVLO
-
S
Q
R
VREF OK
CLK
DIS
E/A
Vref
4
6
VREF
COMP
91
CS
40K
4
V CC
7
GD
Vref
V C
9
Vref
OUT
13V
10
11
PGND
+
2.5V
5
-
VFB
Publicité
