VCC
VCC
VCC
VCC
GND
GND
GND
GND
55A1
55A2
55A3
55A4
16V
1uF
C2
16V
1uF
C3
16V
1uF
C4
16V
1uF
C5
GND
GND
GND
GND
100
R3
100
R4
100
R5
100
R6
35V
1.5uF
C8
35V
1.5uF
C9
35V
1.5uF
C10
35V
1.5uF
C11
TP2
DNP
TP3
DNP
TP4
DNP
TP5
DNP
VCC
1
OUT
3
GND
2
PDRV5055A1ELPGQ1
U12
VCC
1
OUT
3
GND
2
PDRV5055A2ELPGQ1
U11
VCC
1
OUT
3
GND
2
PDRV5055A3ELPGQ1
U10
VCC
1
OUT
3
GND
2
PDRV5055A4ELPGQ1
U9
Schematics, PCB Layout, and Bill of Materials
www.ti.com
8
SLYU047A – April 2018 – Revised May 2018
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Copyright © 2018, Texas Instruments Incorporated
DRV5055EVM
4
Schematics, PCB Layout, and Bill of Materials
NOTE:
Board layouts are not to scale. These figures are intended to show how the board is laid out. The figures are not intended to be used for
manufacturing DRV5055EVM PCBs.
4.1
Schematics
Figure 2
to
Figure 6
show the schematic of the DRV5055EVM.
Figure 2
pertains to DRV5055 devices that the DRV5055EVM is meant to demo.
Figure 3
shows the schematic of the microcontroller that does all the processing of the measurement data and user input, as well as the LCD that
the microcontroller drives.
Figure 4
displays the circuitry for user inputs and programming inputs.
Figure 5
corresponds to the GPIO extender used
for turning on the respective LED indicators and reading the status of the slider switch.
Figure 6
is the schematic of the power stage used to
transform the 5-V USB input to a 3.3-V supply rail for all other onboard devices.
Figure 2. Schematic for DRV5055 Devices Gain Variants A1 to A4 (Right to Left)