Texas Instruments TCA9536EVM, Руководство пользователя

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5 Schematic
Figure 5-1 illustrates the EVM schematic.
P1
8
P0
1
P2
2
GND
3
SCL
5
SDA
6
VCC
7
P3
4
TCA9536DTM
U2
VCC
8
P0
1
P1
2
P2
3
P3
5
SCL
6
SDA
7
GND
4
TCA9536D
U1
VCC
10
IO0
1
IO1
2
IO2
3
IO3
4
INT
7
RESET
6
SCL
8
SDA
9
GND
5
TCA9537DGS
U3
Most popular
Must support
0
R16
0
R18
0
R17
0 R12
0 R13
0
R14
0 R15
0
R31
0
R32
0 R33
0 R36
0
R38
0
R35
0
R37
0
R39
TP3
1
J7
4.7k
R11
Vcc
820
R9
GND
GND
GND
4
1
2
3
J5
SDA
SCL
GND
SDA
SCL
Connections for MCU
2.0k
R10
1 2
3 4
5 6
J4
SCL
Vcc
2.0k
R20
1 2
3 4
5 6
J8
SDA
Adjustable pull up resistors
100nF
50V
C1
GND
SDA
SCL 100nF
50V
C2
GND
4.7k
R34
10nF
100V
C3
GND
560
R8
Green
1
2
D4
Green
1
2
D3
Green
1
2
D2
Green
1
2
D1
560
R7
560
R6
560
R5
Vcc
1 2
J2
Option to have seperate Power supplies on LED
1
J1
VLED
100k
R4
100k
R3
100k
R2
100k
R1
100k resistors prevent the p-ports from potentiallyhaving shoot through currents when set as an input
4x2 jumpers provide user the option to disconnect from LEDs easily
1
4
3
2
J3
4x1 header allows for easier connection to off board circuitry via female to male/female jumper wire
560
R29
Green
1
2
D8
Green
1
2
D7
Green
1
2
D6
Green
1
2
D5
560
R28
560
R27
560
R26
VLED
100k
R25
100k
R24
100k
R23
100k
R22
100k resistors prevent the p-ports from potentiallyhaving shoot through currents when set as an input
9537_P0
9537_P1
9537_P2
9537_P3
9537_INT
9536_P0
9536_P1
9536_P2
9536_P3
5x1 header allows for easier connection to off board circuitry via female to male/female jumper wire
Vcc
10nF
100V
C4
GND
20k
R40
1
2
J14
GND
Can connect to MCU or allow to be disabled using SHUNT
Vcc
VLED
Green
1 2
D9
560
R41
VLED
1 2
J15
Optional LED on INT
TP6
TP5
GND
9537_P0
9537_P1
9537_P2
9537_P3
1
2
J16
GND
MCU connection
0
R30
4
1
2
3
J12
Shared_Vcc
Shared_SCL
Shared_SDA
Shared_Vcc
Shared_SCL
Shared_SDA
9536_P3
9536_P2
9536_P1
9536_P0
Shared_9536_P0
Shared_9536_P1
Shared_9536_P2
Shared_9536_P3
Shared_9536_P0
Shared_9536_P1
Shared_9536_P2
Shared_9536_P3
820
R21
4.7k
R19
J9
Additional GND connection
GND GND
J10 VLED VLED
Additional VLED connection
J11 Vcc Vcc
Additional Vcc connection
TP4
TP2
1 2
3 4
5 6
7 8
J13
1 8
3 6
5 4
7 2
J6
1
2
3
4
J17
PPPC041LFBN-RC
Figure 5-1. TCA9536EVM Schematic
www.ti.com Schematic
SCPU046 – SEPTEMBER 2021
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