LG LT66 Benutzerhandbuch Seite 68

EXTERNAL_POWER OUT 5V/12V
POWER_OUT
R1804
100K
POWER_OUT S w i t c h i n g n o i s e r e d u c i n g [ M P S r e c o m m e n d ]
C1803 0 . 1 u F
50V
POWER_OUT
IC1802
R1810
MP4460DQ-LF-Z EP_GND 22
c l o s e t o p i n
POWER_OUT SW_1 BST
1 10
D1800
SW_2 VIN_2
MBRA340T3G
2 9
EN VIN_1
3 8
POWER_OUT POWER_OUT
R1809
POWER_OUT COMP FREQ 200K
$0.21
4 7
R1800 C1802 1/8W
18K FB GND
150pF 1%
5 6
POWER_OUT 50V
POWER_OUT
R1802
150K
POWER_OUT
POWER_OUT
POWER_OUT
POWER_OUT
L1802
C1806
22UH C1807
22uF
0 . 1 u F
25V
50V
+12V
POWER_OUT
POWER_OUT IC1800
R1813
TPS54327DDAR
[EP]GND
10K
EXT5V_CTRL
EN VIN
1 8
POWER_OUT
POWER_OUT
POWER_OUT
R1811 R1812
56K 11K VFB VBST
2 7
1% 1%
C1814 VREG5 SW
100pF 3 6
POWER_OUT
SS GND
4 5
POWER_OUT
R1805
12K
1%
POWER_OUT
C1800
C1801
1uF
3300pF
10V
50V
POWER_OUT
REAL TIME CLOCK(RTC)
IC1801
M41T83RMY6F
NC_1 NC_4
1 18
NF_1 NV_4
2 17
NF_2 NF_3
+3.5V_ST 3 16
NC_2 VCC
4 15
RST IRQ2
5 14
DU NC_3
6 13
SQW IRQ1/FT/OUT
7 12
R1801 R1807
VBAT SCL
1K 33
8 11
R1808
BA1800
VSS SDA 33
9 10
BATTERY
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
Copyright © 2012 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
Vout=(1+R1/R2)*0.765=5.03V
GND
+24V POWER_OUT
1
C1813
470pF
DV/DT
50V
2
POWER_OUT
R1818
POWER_OUT
1K ENABLE/FAULT
C1810 C1812 3
EXT12V_CTRL
3 . 3 u F 0 . 1 u F POWER_OUT
50V 50V
I-LIMIT
4
+12V
NC
5
+12V
POWER_OUT L1800
R1816 R1817
CB3216PA501E
270K 10K
1/16W 1/16W
POWER_OUT
1% 1%
POWER_OUT
R1815
20K
1/16W
1%
EXTERNAL_POWER DETECTION
c l o s e I C 1 8 0 0
POWER_OUT
C1816
10uF
25V EXT_5V EXT_12V
EXT_5V
C1805
POWER_OUT
0 . 1 u F R1822 R1821
POWER_OUT
POWER_OUT 200 2.4K
L1803 POWER_OUT POWER_OUT
50V L1801
BLM18PG121SN1D
3.6uH
POWER_OUT
D1801 POWER_OUT
NR8040T3R6N
C1804 C1808
22uF 22uF
APX803D29
16V 16V
POWER_OUT
VCC
3
R1819 C1815
1.2K 0 . 1 u F GND
16V
1/16W
OPT
POWER_OUT
+3.5V_ST
OPT
C1809 C1811
0 . 1 u F 22uF
16V 16V
+3.5V_ST
OPT
R1814
10K
CLOCK_SCL
CLOCK_SDA
POWER_OUT
R1820
43
IC1803
MP5000DQ
SOURCE_5
10
EXT_12V
POWER_OUT
SOURCE_4
9 POWER_OUT
L1804
CB3216PA501E
SOURCE_3
8
C1817
SOURCE_2 0 . 1 u F
7 50V
POWER_OUT
SOURCE_1
6
11
VCC
R1823
100K
IC1804
POWER_OUT
R1806
100
RESET
2
EXT_PWR_DET
1
EMEA INTERACTIVE
GP4_MSTAR
2 0 1 1 . 0 8 . 2 1
1 9
EXT_POWER
LGE Internal Use Only
2 0