SNVU883 December 2023
Table 3-1 lists the EVM test points as well as their functional descriptions. All TPS389C03-Q1 pins have a corresponding test point on the EVM, these test points are located close to the pins for more accurate measurements. Additionally, multiple test-points offer dual functionality allowing for every possible variant of the TPS389C0X-Q1 device to be evaluated. In addition to the test points listed below, the EVM also has four additional GND test points.
TEST POINT SILKSCREEN LABEL | FUNCTION | DESCRIPTION (1) |
---|---|---|
MON1/WDE | Connection to MON1 pin or Watchdog Enable pin | Allows the user to monitor voltage rail #1 or control state of the watchdog enable pin. |
MON2 | Connection to MON2 pin | Allows the user to monitor voltage rail #2. |
MON3 | Connection to MON3 pin | Allows the user to monitor voltage rail #3. |
MON4 | Connection to MON4 pin | Allows the user to monitor voltage rail #4. |
MON5/RS_4 | Connection to MON5 pin or to RS_4 pin | Allows the user to monitor voltage rail #5 or allows the user to remote sense MON4. |
MON6/RS_3 | Connection to MON6 pin or to RS_3 pin | Allows the user to monitor voltage rail #6 or allows the user to remote sense MON3. |
RS_1/2 | Connection to RS_1/2 pin | Allows the user to remote sense MON1 or MON2. |
NRST | Connection to NRST pin | Allows the user to monitor the reset (NRST) output. |
ADDR | Connection to ADDR pin | Allows the user to measure the I2C address voltage. |
NIRQ | Connection to NIRQ pin | Allows the user to monitor the interrupt (NIRQ) output. |
ACT/WDO | Connection to ACT pin or WDO pin | Allows the user to set the ACT input to VDD or GND. Alternatively allows the user to monitor the watchdog output (WDO) pin. |
ESM/WDI | Connection to ESM or WDI pin | Allows the user to set the error signal monitor input or interact with the watchdog input pin. |
SCL | Connection to SCL pin | Allows the user to monitor the clock signal input. |
SDA | Connection to SDA pin | Allows the user to monitor the data signal input. |
PEXT | External power supply | Allows the user to apply a power supply voltage that is not provided from the EVM. |
GND | GND for EVM | GND for EVM. |