2.1 Getting Started: Single EVM
1. Connect Power to the EVM.
2. Connect the EVM to the Host PC through the USB. In the event that the power is provided by the USB cable,
apply the appropriate jumper connection to connect VBUS and VSYS see
3. Launch the GUI and evaluate.
Terminal J6, labeled VSYS_IN in
and
, can accept wire gauges up to 14 AWG. The voltage
supplied must be within the input range of the device, 2.7 V to 5.5 V. The power supply providing the input to
VSYS_IN is required to supply 120% of the output power. Once power has been supplied to VSYS_IN, the
pullup on nPWRON/ENABLE pin will enable the device and the power output rails will activate. The default ON
Request for the master device is the ENABLE pin which is a level sensitive input. Please refer to
more details.
2.2 Getting Started: Multiple EVM Evaluation
1. Connect Power to one EVM and remove the jumpers on all EVMs shorting VBUS and VSYS. All VCCA and
GND power pins are shared between the stacked EVMs.
2. Connect one EVM to the Host PC through the USB. In the event that the power is provided by the USB cable,
apply the appropriate jumper connection to connect VBUS and VSYS see
3. Stack Master EVM and one or more Slave EVMs. For convenience it is recommended to place the Master on
the top of the stack.
4. Launch the GUI and evaluate.
The EVM can be powered solely from the 5 V USB connection (either 5V VUSB or 3.3V USB_3V3), provided
that the total load does not exceed the USB. This removes the requirement for a separate supply when
evaluating a number of the digital features of the PMIC with the EVM.
The three distinguishing characteristics of the slave EVM are the PMIC, the backside components described in
, and the jumper position on J37. With the jumper on J37 placed in the slave position, the ENABLE pin
of the slave PMIC is connected to the VOUT_LDOINT output pin of the master PMIC through the J29 Stack-up
header. Once the master and slave devices are stacked, supplying power on J6 is the only requirement for
getting started. VSYS_IN is connected to VCCA and distributed across all stacked boards through J28. The
power supply can be applied to any of the available J6 terminals.
2.3 The GUI Tool
Texas Instruments provides a GUI tool to enable, configure, and evaluate the various features of the TPS6594x-
Q1 with the EVM. Please refer to the GUI User's Guide
for a more detailed description of this tool.
The GUI will run on most PC platforms and requires an available USB port. The EVM USB connector is type-C
and a type-A to type-C cable is provided with the EVM to connect to the host computer. The EVM will enumerate
as two COM ports and one additional port for the devices firmware updates. The port the GUI should use is the
ACCtrl COM port (and not the ACCtrl Console).
3 EVM Details
The following sections describe the various interfaces for measuring and controlling the configuration. Note: the
configurations are in coordination with the settings of the PMIC. It is important to understand that both the EVM
configuration and the settings of the PMIC must match. For example, if the GUI is used to change the PMIC
interface to SPI from I
2
C, then the appropriate SPI related jumpers should be in place on J7 and J15. Refer to
on how to update the PMIC communication protocol.
Getting Started
SLVUBT0A – JUNE 2020 – REVISED JANUARY 2021
TPS6594x-Q1 Evaluation Module
5
Copyright © 2021 Texas Instruments Incorporated
