Texas Instruments SN65DSI8 Series, User'S Manual And Implementation Manual, Page: 11 / 17

1.8V REGULATOR
3.3V REGULATOR
9V SilkScreen:
0.01uF
9V
SilkScreen:
5V
NOTE:
DO NOT INSTALL.
DO NOT USE 9V when Jumper in 2-3 position.
NOTE:
WHEN INSTALLED DO NOT INSTALL J15 Power selection header
DNI
SilkScreen:
9V_DIS
NOTE:
Tie to 'LOW' if external backlight driver used.
NOTE:
DimmingCTRL set to 'LOW' for default config.
GND GND
GND GND
NOTE:
Remove FB6 for external power option.
Vin = '5V-24V'
5V REGULATOR
Backlight Driver
SilkScreen:
SilkScreen:
SilkScreen:
SilkScreen:
SilkScreen: BKTLGT 5-24V
Power Selection Hdr
NOTE:
DNI if external backlight driver used.
3P3V SilkScreen:
1P8V SilkScreen:
3P3V SilkScreen:
5V SilkScreen:
SilkScreen: ON OFF
PG1P8
EN1P8
SS1P8
FB_1PT8V
PG PG3P3
EN3P3
SS3P3
FB_3PT3V
L
E
D
9
V
BKLT_FLT
Q1_pin2 EXT_BKLT_9V BL_PWR
BKLT_VBAT
BKLT_SW
BKLT_CIN
BKLT_ISET
BKLT_IFB6
BKLT_IFB5
BKLT_IFB4
BKLT_IFB3
BKLT_IFB2
BKLT_IFB1
5V_AJD
9V_DIODE
EN5V
PG
PWRIN_SW
PG
BOARD_1P8V
BOARD_3P3V
BOARD_5V
BOARD_3P3V
PWR_IN
BOARD_9V
BOARD_5V
PWR_IN BOARD_9V BOARD_5V
BOARD_9V BOARD_5V
PWR_IN BOARD_9V
BOARD_1P8V
PG pg4
DimmingCTRL pg4
LED_BKLT_EN pg4
BL_PWR pg3
IFB1 pg3
IFB2 pg3
IFB3 pg3
IFB4 pg3
IFB5 pg3
IFB6 pg3
R36
348
R96 DNI
C48
DNI
U9
TPS74201RGWT
OUT
1
NC
2
NC
3
NC
4
IN
5
IN
6
IN
7
IN
8
PG
9
BIAS
10
EN
11
GN
D
12
NC
13
NC
14
SS
15
FB
16
NC
17
OUT
18
OUT
19
OUT
20
P
A
D
21
LP5
R92
51
R84
1.15K
C34
DNI
J14
HDR2X1 M .1
1
2
C41
DNI
C43
10000pF
FB6
220 @ 100MHZ
R80 0
R38 DNI
D5
FYV0704S
1
3
2
C38
10uF
C46
10uF
C42
10uF
R81
500
SW3
TS01CQE
1 2 3
LP6
C39
10uF
R83
37.4K
R95 DNI
T
S
J13
2.1mm x 5.5mm
1
2
3
LP7
R93
62K
C49
4.7uF
25V
J15
HDR3X1 M .1
1
2
3
C52
DNI
R86
4.7K
LP4
D2
10V, 3A
1 2
R98 DNI
U8
TPS74201RGWT
OUT
1
NC
2
NC
3
NC
4
IN
5
IN
6
IN
7
IN
8
PG
9
BIAS
10
EN
11
GN
D
12
NC
13
NC
14
SS
15
FB
16
NC
17
OUT
18
OUT
19
OUT
20
P
A
D
21
C54
0.1uF
R89
3.57K
D4
B150
1 2
R35
150
Q1
Si8409DB
1
2 4
3
C50
4.7uF
50V
L1
10uH TP5
T POINT S
U10
TPS61181A-QFN16
PGND
1
SW
2
VBAT
3
VO
4
ISET
5
CIN
6
IFB1
7
IFB2
8
IFB3
9
GND
10
DCTRL
11
IFB4
12
IFB5
13
IFB6
14
EN
15
FLT
16
PAD
17
C37
22uF
C53
1uF
C40
1uF
FB5
DNI
R94 DNI
R85
13K
U7
REG104-A
Vin
1
Vout
2
GND
3
NR/Adjust
4
Enable
5
GND
6
C45
10uF
R88 0
C51
0.1uF
C35
10uF
D6
LED RED
TP3
T POINT S
D7
LED YLW
R79
4.7K
R97 DNI
R82
3.57K
D3
LED Green
R87
4.7K
TP4
T POINT S
R34
10K
C47
10000pF
C44
DNI
R90
2.87K
C36
22uF
R91
100K
Copyright © 2016, Texas Instruments Incorporated
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EVM Schematics
11 SLLU221 – October 2016
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Copyright © 2016, Texas Instruments Incorporated
SN65DSI83, SN65DSI84, and SN65DSI85 EVM User’s Manual and
Implementation Guide
Figure 7. SN65DSI8X Schematic 4