Schematics
Friday, October 27, 2017
D
27
26_POWER_THIRD_PARTY
13
MTK Confidential
ofSheetDate:
Size
Title
Flash LED 5V Boost
LCM Backlight LED Driver
Kelvin connection
Switching Charger w/o Power Path
SW CHG I2C address: TBD (Write:0xTBC, Read:0xTBC)
40mil 40mil
40mil
40mil
Kelvin connection
BATTERY CONNECTOR
Kelvin connection
Rfg > 0.5W
Battery NTC=10K, R2615 select 16.9K, 1%
Battery NTC=47K, R2615 select 61.9K, 1%
RT9458_BATS
Note: 26-2
Note 26-2:
For better ESD or surge performance we need choose suitable
device for system protection. Please refer to [Surge device selection
guide V2.0] provide by MTK.
Note 26-1:
Schematic design notice of "26_POWER_THIRD_PARTY"
If LCD module Power requirement is 3 Power mode.
AVDD/AVEE of LCM module is powered by 3rd party chip (e.g.RT4801A/RT9399).
A
B
C
D
5 4 3 2 1
D
C
B
A
12345
[13]
[13]
[13,26,64]
[13,26,64] [22]
[22]
[22]
[22]
[22]
VOUT max. : 38V
Switch Frequency : 5KHz~100KHz
VFB : 200mV
后闪光灯
Torch:VFB=50mV
F
l
a
s
h
:
V
F
B
=
︵
1
.
2
6
V
/
R
S
E
T
︶
*
1
0
.
2
K
ALL:Iout=VFB/Rsense
FLASH LED--FRONT
前闪 无
A969-5.1有用过
21
C2609
C / 100 / nF / 0201 / NC
12
R2615 16.9K 1%
21
C2604
C / 100 / nF / 0201 10V
12
SH2604
NO PAD 0402
NO0402/SMD
21
C2603
C / 47 / nF / 0201 16V
12
SH2605
NO PAD 0402
NO0402/SMD
12
R2617
∮1%
R / 0.01 / ohm / 1206
12
PL2602
DFE252012F-1R0M=P2
PL / 1 / uH / 2520
12
R2604
∮1%
21
C2606
C / 10 / uF / 0603 25V
21
C2607
4.7uF
21
C2602
C / 1 / uF / 0603 25V
12
R2602
1K
21
C2608
C / 100 / nF / 0201 / NC
R70210K
SH2602
NO0402/SMD
SH2603
NO0402/SMD
R
6
2
0
3
1
0
R
C
6
2
1
0
10K
R
6
2
0
6
1K
1
23
Q6203
2SC4617
1
VIN
2
C1
3
C2
4
FLASH
5
EN
6
REST
7
FB
8
SGND
9
PGND
10
VOUT
11
GND
U5101
POWER-DC2DC-SGM3140
R
6
2
0
7
8
6
K
/
5
0
0
m
A
21
C
6
2
1
2
4
.
7
u
F
/
N
C
21
C
6
2
1
1
4
.
7
u
F
/
N
C
21
C
6
2
1
3
4
.
7
u
F
/
N
C
12
R
6
2
0
9
R0603
0
.
3
R
A1
VBUS
B2
PMID
A4
SCL
C1
SW
D1
PGND
B1
PMID
C2
SW
D2
PGND
C3
SW
A2
VBUS
A3
BOOT
B3
PMID
B4
SDA
C4
STAT
D3
PGND
D4
OTG
E1
CSIN
E2
CD
E3
VREF
E4
CSOUT
U402
WCSP20/P0.4/B0.25/BQ24158
FAN54015
21
C2
1uF
R3824K
D2001
D / MMSZ5231BT1G
ESD4
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
U
2
MI5809A
1
2
J2602
1
C
2
A
T
V
S
2
6
0
1
SOD323
1
2
3
6
5
4
CON2101
VBAT-CON-L531
R
1
NC
VBUS
VBAT
TREF_PMU
VBAT
D_GND
D_GND
D_GND
D_GND D_GND
D_GND
D_GND
D_GND
INT_SIM2_EINT_CHG
DRVBUS
SDA1
SCL1 ISENSE
BATSNS
CS_P
CS_N
BATON
RT9458_BOOT
ISENSE
BATSNS
CS_P
CS_N
DISP_PWM
VBAT
BACK_FLASH_EN
F
L
A
S
H
-
B
+
F
L
A
S
H
-
B
-
G
P
I
O
︳
F
L
A
S
H
︳
S
T
R
O
B
E
B
A
C
K
︳
F
L
A
S
H
︳
E
N
F
L
A
S
H
-
B
+
F
L
A
S
H
-
B
-
VBAT
F
L
A
S
H
-
B
-
CHG-EN
TREF-B
D_GND
VBUS
RT9458_ISNS
VDRV
C
H
R
L
D
O
VBUS
F
L
A
S
H
-
B
+