Texas Instruments TPS546B24AEVM-2PH, User Manual, Page: 11 / 47

Table 4-1. Test Point Functions (continued)
Test
Point
Type Name Description
TP22 T-H Loop VOUT VOUT + measurement point
TP23 T-H Loop GND GND reference
TP24 T-H Loop GND GND reference
TP25 T-H Loop GND VOUT – measurement point
TP26 T-H Loop VOUT_P2 U1_P2 output voltage measurement point for efficiency, reference to TP30
TP27 T-H Loop SYNC Synchronization connection between U1_P1 and U1_P2. External SYNC input
TP28 T-H Loop Remote SNS– OUTPUT remote sense – voltage point
TP29 T-H Loop BC_DAT Data for back-channel communications between stacked devices
TP30 T-H Loop GND_P2 U1_P2 output voltage referencing GND for efficiency measurement
TP31 T-H Loop BC_CLK Clock for back-channel communications between stacked devices
TP32 T-H Loop GND GND reference
TP33 T-H Loop VOSNS_P2 VOSNS measurement point for U1_P2
TP34_P1,
TP34_P2
T-H Loop MSEL2_P1,
MSEL2_P2
MSEL2 measurement point for U1_P1 and U1_P2
TP35_P1,
TP35_P2
T-H Loop VSEL_P1,
VSEL_P2
VSEL measurement point for U1_P1 and U1_P2
Table 4-2 lists the EVM jumpers.
Table 4-2. Jumpers
Jumper Type Name Description
JP1_P1,
JP1_P2
Header, 100 mil, 2 × 1 EXT_5.1V_P1, EXT_5.1V_P2
Short to connect VDD5 of U1_P1 or U1_P2 to the 5.1 V
from U2
JP2_P1,
JP2_P2
Header, 100 mil, 3 × 2 CNTL_SEL1, CNTL_SEL2 U1_P1 and U1_P2 EN/UVLO pin selections
JP3 Header, 100 mil, 2 × 1 EN to GND Short to disable the auxiliary 5 V
JP4 Header, 100 mil, 2 × 1 AVIN-PVIN Short to connect to connect AVIN input to PVIN
JP5 Header, 100 mil, 2 × 1 AVIN-LDO Short to connect to connect AVIN input to U2 input
JP6 Header, 100 mil, 2 × 1 PMBus3.3V-AVIN Short to connect USB-to-GPIO 3.3 V to AVIN
JP7_P1,
JP7_P2
Header, 100 mil, 3 × 1 AVIN-U1_P1, AVIN-U1_P2 U1_P1 and U1_P2 AVIN input source selections
JP8 Header, 100 mil, 2 × 1 Micro_USB-PVIN Short to connect PVIN to Micro USB connector
Table 4-3 lists the options for the EN/UVLO pin selections on JP2_P1 and JP2_P2.
Table 4-3. JP2_P1 and JP2_P2 Selections
Shunt Position Selection
Pin 1 to 2 shorted PMBus adaptor control signal
Pin 3 to 4 shorted Resistor divider to PVIN
Pin 5 to 6 shorted EN/UVLO short to ground
Table 4-4 lists the options for the EN/UVLO pin selections on JP2_P1 and JP2_P2.
Table 4-4. JP7_P1 and JP7_P2 Selections
Shunt Position Selection
Pin 1 to 2 shorted AVIN pin connected to AVIN input through 10-Ω resistor. Use this selection when testing with a split rail input.
Pin 2 to 3 shorted AVIN pin connected to PVIN through 10-Ω resistor
Table 4-5 lists the EVM connector functions.
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SLUUC48A – FEBRUARY 2020 – REVISED FEBRUARY 2022
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TPS546B24A 2-Phase SWIFT™ Step-Down Converter Evaluation Module
User's Guide
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