Texas Instruments TUSB8040AEVM User Manual page 14

Appendix A
SILKSCREEN: TIP +5v
J6
2
3
1
2.1mm x 5.5mm
C63
10uF
BOARD_5V
3.3V REGULATOR
U20
2
IN OUT
1
SHDN/ SENSE
C69
10uF
TPS7A4533
1.1V REGULATOR
BOARD_3P3V
U22
5
IN1
6
IN2
7
IN3
8
IN4
C76 11
EN
10uF
10
BIAS
TPS74801RGW
1P1V_PG
PAGE1 1P1V_PG
14
Schematics
BOARD_5V
R55
330
0402
5%
PAGE1 PWRON2Z_BATEN2
PAGE1 PWRON0Z_BATEN0
D6
LED Green 0805
BOARD_3P3V
4
PAGE1 PWRON1Z_BATEN1
5
C70 D9
10uF
LED Green 0805
PAGE1 PWRON3Z_BATEN3
R61
330
0402
5%
1P1V_SS BOARD_1P1V
R81
NOPOP
1
OUT1
18
OUT2
19
R82
OUT3
20
1.87K
OUT4
16
0402
FB
5%
9 1P1V_FB
PG
C77
10uF
R91
4.99K
0402
5%
TI recommends using a R82 with a value of
2.49K to counter the IR drop of the ferrite bead,
FB2. If a ferrite bead with very low DC resistance
is used, R82 should be populated with a 1.87K
resistor.
Copyright © 2012, Texas Instruments Incorporated
DOWNSTREAM PORTS 1 & 3 POWER
(Logical DS Ports 0 & 2)
BOARD_5V
C62
0.1uF
U19
2 9 DN2_VBUS
IN OUT1
3
IN 10
FAULT1Z
4
PWRON2Z_BATEN2
EN1Z
8 DN0_VBUS
OUT2
PWRON0Z_BATEN0 5
EN2Z 6
FAULT2Z
1
GND
11 7 ILIM1
PAD ILIM C64
0.1uF
+
TPS2560DRC
R56
37.4K
0402
5%
Limiting DS Port VBUS current to 1.5A per port.
DOWNSTREAM PORTS 2 & 4 POWER
(Logical DS Ports 1 & 3)
BOARD_5V
C68
0.1uF
U21
2 9 DN1_VBUS
IN OUT1
3
IN 10
FAULT1Z
4
PWRON1Z_BATEN1
EN1Z
8 DN3_VBUS
OUT2
PWRON3Z_BATEN3 5
EN2Z 6
FAULT2Z
1
GND
11 7 ILIM2
PAD ILIM C71
0.1uF
+
TPS2560DRC
R62
37.4K
0402
5%
Limiting DS Port VBUS current to 1.5A per port.
BOARD_3P3V
R65 R66 R67 R68 R69 R70 R71
1K 1K 1K 1K 1K 1K 1K
0402 0402 0402 0402 0402 0402 0402
5% 5% 5% 5% 5% 5% 5%
D12 D13 D14
PAGE3 LEDG0Z_USED0
PAGE3 LEDG1Z_USED1
PAGE3 LEDG2Z_USED2
PAGE3 LEDG3Z_USED3
PAGE3 LEDA0Z_RMBL0
PAGE3 LEDA1Z_RMBL1
PAGE3 LEDA2Z_RMBL2
PAGE3 LEDA3Z_RMBL3
PORT INDICATOR LEDS
BOARD_3P3V BOARD_3P3V
R53 R54
10K 10K
0402 0402
5% 5%
DN2_VBUS PAGE2
OVERCUR2Z PAGE1
DN0_VBUS PAGE2
OVERCUR0Z PAGE1
C66
C65 0.1uF C67
+
150uF 150uF
D7 D8
LED Green 0805 LED Green 0805
R57 R58
330 330
0402 0402
5% 5%
BOARD_3P3V BOARD_3P3V
R59 R60
10K 10K
0402 0402
5% 5%
DN1_VBUS PAGE2
OVERCUR1Z PAGE1
DN3_VBUS PAGE2
OVERCUR3Z PAGE1
C73
C72 0.1uF C75
+
150uF 150uF
D10 D11
LED Green 0805 LED Green 0805
R63 R64
330 330
0402 0402
5% 5%
R72
1K
0402
5%
D15
SW2
LNJ115W88
8-POS 50-MIL SMT
C&K (ITT-CANNON)
TDA08H0SK1R
1 16
2 15
3 14
4 13
5 12
6 11
7 10
8 9
R83 R84 R85 R86 R87 R88 R89
330 330 330 330 330 330 330
0402 0402 0402 0402 0402 0402 0402
5% 5% 5% 5% 5% 5% 5%
POWER
SIZE
DWG NO:
C
SCALE: NONE Thursday, January 19, 2012
SLLU163 – May 2012
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R90
330
0402
5%
Sheet 3 of 3