3.3 Test Point Descriptions
Numerous test points are provided to access voltages and signals. All test points are designed for sensing
voltages only and are not designed to carry large DC currents.
Table 3-3. Test Point Descriptions
Test Point
Device Pin
Description
TP1
VCCA
This point can be used to measure IDDQ, when resistor R58 is removed.
TP2
VIO_IN
This point can be used to measure IDDQ when resistor R65 is removed.
TP3, TP4, TP5
GND
NA
TP6
FB_B3
External voltage monitor connection.
TP7
FB_B4
TP8
GPIO10 (SYNCCLKIN)
Sync Clock input, up to 4.4 Mhz
TP9
SW_B1
Test Point for the switch node. Not populated to reduce EMI.
TP10
SW_B2
TP11
SW_B3
TP12
SW_B4
TP13
SW_B5
TP14
GND
NA
3.4 Configuration Headers
There are six headers available to configure the EVM function. Headers J26 and J37 configure the backup
power supply and master and slave mode of operation respectively. J45 is connected to J37, which can pull the
nPWRON/ENABLE pin of the PMIC to a logic high or low. Header J7, as shown in the silk screen picture in
and
, is used to configure the EVM to match the feature setting written to the device
configuration registers. J30 is used to select the PMIC IO voltage, either 1.8 V or 3.3 V. The sixth header is a
portion of J15, which allows VSYS to be powered from the USB connection and the configuration of GPIO1.
Figure 3-1. TPS6594EVM Header J7
EVM Details
SLVUBT0A – JUNE 2020 – REVISED JANUARY 2021
TPS6594x-Q1 Evaluation Module
7
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