Skyworth RGB R&D Centre
Technical Document
22/35
9.Schematic Circuit Diagram
(要求清晰,放大后能看清楚所有文字)
Page1 Power Circuit
C2P8
100nF
R9P5
100KΩ
EN9
R8P1
4.7Ω
R9P6
NC/100KΩ
R9P0
330Ω
C2P6
100nF
C6P5
220nF
R8P8
470KΩ
R8P2
8.2KΩ
C6P3
100nF
R9P7
NC/100KΩ
C6P4
220pF
C1P4
10uF
+12V_PWR
C6P10
22uF
C2P9
100nF
根据系统需要调整
L0P6
10uH
R4P3
NC/100KΩ
C4P7
100nF
R4P2
100KΩ
R4P8
0Ω
C5P8
10uF
C4P79
NC/100nF
C5P0
10uF
C4P6
10uF
R4P5
51KΩ
R4P4
10KΩ
GPIO_PM0
,
SOC 3.3_Standby
上拉
C4P32
10uF
C4P5 1uF
FB0P6
60Ω/100MHz
C4P9
100nF
C4P8
10uF
C4P4
NC/22pF
R4P7
33KΩ
C4P52
22uF
U1P3
MP1653GTF-Z
VIN
1
SW
2
GND
3
BST
4
EN
5
FB
6
R4P6
1KΩ
+5V_Standby
+12V_PWR
SW1
EN1
EN1
U2P3
AZ1117CH-3.3TRG1
IN
3
OUT
2
ADJ
1
VOUT
4
+12V_PWR
2
、
+12V_PWR
转
+5V_Standby
SW1
(
DC-DC
价格
0.078USD
规格标称最大
3A
,
720KHZ
输入电压范围
4.5V-16V
轻载高效 优选)
Ven>1.36V:ON
Ven<1.04V:OFF
注意
EN
端电压及电容,根据系统需要调整
C6P0
22uF
EN
端的电压范围是
2.5V-6V,
上电时间需调节
,
关机要放电
L1P1
2.2uH
1
2
U2P2
AZ1117CH-3.3TRG1
IN
3
OUT
2
ADJ
1
VOUT
4
+12V_PWR TO +1.10V_VDDC
VID_0
FB8756
VDDC Power
C2P1
22uF
TUNER 3V3
根据系统需要调整
L0P7
10uH
C4P80
100nF
R4P9
NC/100KΩ
R4P10
0Ω
C5P9
10uF
C4P81
NC/100nF
C5P10
10uF
C4P82
10uF
R4P13
51KΩ
R4P12
10KΩ
C4P84
10uF
C4P83 1uF
FB0P7
60Ω/100MHz
C4P85
100nF
C4P87
NC/22pF
C4P86
10uF
C4P88
22uF
R4P14
33KΩ
U1P4
MP1653GTF-Z
VIN
1
SW
2
GND
3
BST
4
EN
5
FB
6
+5V_VDD
R4P15
1KΩ
+12V_PWR
SW2
U2P1
AZ1117CH-3.3TRG1
IN
3
OUT
2
ADJ
1
VOUT
4
EN2
+12V Power
L :Power off
H :Power on
EN2
U1P2
TLV62565DBVR
EN
1
GND
2
SW
3
VIN
4
FB
5
2
、
+12V_PWR
转
+5V_VDD
SW2
(
DC-DC
价格
0.078USD
规格标称最大
3A
,
720KHZ
输入电压范围
4.5V-16V
轻载高效 优选)
Ven>1.36V:ON
Ven<1.04V:OFF
注意
EN
端电压及电容,根据系统需要调整
U1P1
MP8756GD-Z
VIN
1
PGND
2
PG
3
NC4
4
VOUT
5
MODE
6
SW
7
BST
8
VCC
9
AGND
10
FB
11
EN
12
Q0P1
AO3401A
1
2
3
Q0P2
KMBT3904
1
2
3
1.5V
输出,最大负载
1.4A
5V
输出,最大负载
2.3A
5V
输出,最大负载
2.3A
VBL_CTRL
BL_ON/OFF
Q0P10
KMBT3904
1
2
3
R3P12
1KΩ
POWER_CONNECT
PWR_ON/OFF
+5V_Normal
+12V_Normal
+12V_PWR
R7P5
10KΩ
STANDBY
C0P1
22uF
Inverter controler
DDR Power
+1.1V_VDDC
BL_ON/OFF
R2P1
4.7KΩ
VBL_CTRL
VBL_CTRL
BL_ON/OFF
PWR_ON/OFF
PWR_ON/OFF
R2P5
200Ω
BL_ADJUST
R3P11
NC/12KΩ
BL-ADJUST
VID_0
VID_0
L1P3
2.3uH
C0P6
100nF
R1P0
NC/100KΩ
C0P4
100nF
C0P7
10uF
R1P1
10KΩ
R0P2
100KΩ
C2P5
33pF
R0P3
15KΩ
R0P9
0Ω
FB1
(
DC-DC
价格
0.028USD 1.5MHZ
规格标称最大1
.5A
输入电压范围
2..7v-5.5v
优选)
FB1
R6P17
NC/4.7KΩ
R6P18
NC/10KΩ
C5P7
100nF
C4P1
10uF
C4P2
10uF
C4P3
100nF
R6P14
10KΩ
STANDBY
C6P1
22uF
C6P2
22uF
MARK4
MARK
Test Point & MARK
MARK1
MARK
MARK6
MARK
MARK3
MARK
MARK5
MARK
MARK2
MARK
MARK8
MARK
MARK7
MARK
H1 HOLE
Screw_
外销异形
1
2
3 4 5
6
7
H2
HOLE
New_Screw
1
2
3
4
5
C0P5
10uF
R7P3
47KΩ
R7P2
47KΩ
R7P4
47KΩ
输出电容的容值需要根据系统的实际需要进行调整
1.1V
输出,最大负载
5A
输出电压为
5V\3.3V
时,这三个不要贴,
输出为
1.2V\1 .5V\1.8V\2.5V
时,需要贴上。
PIN6
NC
NC
R9P7
模式
R9P6
R7P11
0Ω
NC
100K
轻载高效模式(带
USM
的
PFM)
>2.6V(2.7V)
NC
非轻载高效模式(
PWM)
BRI_ADJ
BRI_ADJ
+3.3V_TU
R9P2
100KΩ
C0P8
22uF
R6P16
1KΩ
C3P10
NC/2.2uF
BL-ADJUST
+3.3V_Standby
BRI_ADJ
+5V_Standby
+1.5V_DDR
+5V_Standby
FB8756
+5V_Standby TO +5V_Normal
STANDBY
STANDBY
Q1P8
AO3401A
1
2
3
R1P7
10KΩ
C1P9
220nF
R1P5
10KΩ
Q1P5
KMBT3904
1
2
3
R1P6
100KΩ
+5V_Normal
+5V_Standby
R7P12
10KΩ
STANDBY
EN2
C3P35
100nF
+5V_Normal
C3P36
100nF
C3P33
10uF
FB0P4
NC/60Ω/100MHz
C3P34
10uF
+3.3V_Standby
+5V_Standby
2
、
+5V_Standby TO +3.3V_Standby
C1P8
22uF
C1P7
100nF
C3P37
100nF
C3P38
10uF
C3P39
100nF
+3.3V_Normal
+5V_Normal
C3P40
10uF
+5V_Normal TO +3.3V_Normal
BRI_ADJ
BL-ADJUST
C0P3
22uF
C3P8
10uF
+5V_Normal
C0P2
22uF
C8P2
100nF
Q7P2
NC/2N7002K
G
1
D
2
S
3
R3P10
NC/0Ω
BL_ON/OFF
EN9
+5V_Standby TO +1.5V_DDR
FB0P3
60Ω/100MHz
规格标称最大
6A
700KHZ
输入电压范围
4.5V-26V
VCC2
8
、
Pin7
对地 的
VCC
电容走线要短,
VCC
电容地直接连
Pin2
或至少大于
3
个过 孔
2
、
PCB
排版时输入电容和输 出电容尽量靠近
IC
VOUT1
PCB
排版 时储能电感要尽量靠近
IC
VCC2
R7P1
NC/4.7KΩ
R7P8
NC/4.7KΩ
R7P9
NC/1KΩ
+12V_PWR
+12V_Normal
VOUT1
EN9
VCC2
R8P0
10KΩ
R8P5
499Ω
C1P3
1uF
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