is connected to the TMAG5328EVM, the SCB provides 3.3 V on VCC, so an external power supply should not
be connected to VCC in this scenario. If the SCB is not connected to the TMAG5328EVM, however, VCC can be
connected to an external power supply by connecting the external power supply between the VCC and GND test
points. In this scenario, the external power supply voltage must be set to somewhere within 1.8 V to 5.5 V, which
is within the normal power supply voltage range of both the DAC43701 and TMAG5328.
To power the TMAG5328 from an external power supply that is independent of the board's main power rail,
remove the jumper on J2 and connect J4 Pin 1 (labeled TVCC on the board) to the positive terminal of a power
supply and then connect the board's ground to the negative terminal of the power supply. This configuration
enables powering the TMAG5328 from a different power supply than the DAC and the SCB. The TMAG5328
power supply voltage should be set to be within 1.65 V to 5.5 V, which is the normal power supply voltage range
of the TMAG5328.
Various jumper headers and jumper settings are present to add to the flexibility to the board. Some of these
headers require that jumpers be placed appropriately for the board to correctly function.
shows the
functionality of each header on the board.
Table 4-1. Header Names and Jumper Settings
Header Name
Type
Main Functionality
Valid Use-Cases
J1
2 x 6 pin header
Connection to SCB
To connect the TMAG5328EVM
to the SCB, connect this male
header to the female J1 header
on the SCB. The pin mappings on
this header include the following
(even pins are on the top row and
odd pins are on the bottom row):
•
Pin 4: GND
•
Pin 6: VCC (3.3 V provided
by SCB)
•
Pin 9: TMAG5328 Output
•
Pin 10: DAC43701 SCL I2C
communication signal
•
Pin 11: Not used
•
Pin 12: DAC43701 SDA I2C
communication signal
J2
2-pin jumper header
PWR: TMAG5328 power select
•
Place a jumper here to power
the TMAG5328's power rail,
which is labeled on the EVM
as TVCC, to the VCC rail on
the board.
•
If you want to power
the TMAG5328 from an
external power supply that
is independent of the DAC
and SCB, remove the jumper
here and connect the external
power supply between J4
Pin 1 and GND. This option
allows testing the TMAG5328
at voltages other than the 3.3
V provided by the SCB.
Hardware
10
TMAG5328 Evaluation Module
Copyright © 2021 Texas Instruments Incorporated