Tip And Barrel Measurement; List Of Test Points, Jumpers, And Connectors; Figure 4-1. Tip And Barrel Measurement; Output - Texas Instruments TPS546D24SEVM-2PH User Manual

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4.3 Tip and Barrel Measurement

Figure 4-1 illustrates the tip and barrel measurement for switching node waveform on TP2_P1 with TP4_P1 or
TP2_P2 with TP4_P2.

4.4 List of Test Points, Jumpers, and Connectors

Table 4-1 lists the test point functions.
Test
Type
Point
TP1_P1 T-H Loop
TP1_P2 T-H Loop
TP2_P1 T-H Loop
TP2_P2 T-H Loop
TP3_P1 T-H Loop
TP3_P2 T-H Loop
TP4_P1 T-H Loop
TP4_P2 T-H Loop
TP5_P1 T-H Loop
TP5_P2 T-H Loop
TP6 T-H Loop
TP7 T-H Loop
TP8 T-H Loop
TP9 T-H Loop
TP10 T-H Loop
TP11 T-H Loop
TP12 T-H Loop
TP13 T-H Loop
TP14 T-H Loop Remote SNS+ OUTPUT remote sense + voltage point
TP15 T-H Loop
TP16 T-H Loop
TP17 T-H Loop
TP18 T-H Loop
TP19 T-H Loop
TP20 T-H Loop
TP21 T-H Loop
TP22 T-H Loop
TP23 T-H Loop
TP24 T-H Loop
TP25 T-H Loop
TP26 T-H Loop
TP27 T-H Loop
SLUUCQ1 – MARCH 2023
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Metal Ground
Barrel
Probe
Tip

Figure 4-1. Tip and Barrel Measurement

Table 4-1. Test Point Functions

Name
PVIN_P1 PVIN pin voltage of U1_P1 device measurement point
PVIN_P2 PVIN pin voltage of U1_P2 device measurement point
SW_P1 Switching node of output rail phase 1 measurement point, reference to TP4_P1
SW_P2 Switching node of output rail phase 2 measurement point, reference to TP4_P2
GND_P1 GND pin voltage of U1_P1 device measurement point
GND_P2 GND pin voltage of U1_P2 device measurement point
GND_P1 GND reference for switch node measurement of U1_P1
GND_P2 GND reference for switch node measurement of U1_P2
PG_S_P1 PGOOD signal of phase 1
PG_S_P2 PGOOD signal of phase 2
AUX_5V External 5-V measurement point for VDD5
DATA DATA signal on J2 header
SMBALRT SMBALERT signal on J2 header
CNTL CNTL signal on J2 header
CLK CLK signal on J2 header
GND GND reference
PVIN VIN+ measurement point
VOUT_P1 U1_P1 output voltage measurement point for efficiency, reference to TP16
GND VIN- measurement point
GND_P1 U1_P1 output voltage referencing GND for efficiency measurement
CH_A OUTPUT for small signal loop gain measurements (B/A setup)
CH_B INPUT for small signal loop gain measurements (B/A setup)
Ext_AVIN AVIN measurement point
GND GND reference
VSHARE VSHARE measurement point. Sensitive signal.
VOUT VOUT + measurement point
GND GND reference
GND GND reference
GND VOUT - measurement point
VOUT_P2 U1_P2 output voltage measurement point for efficiency, reference to TP30
SYNC Synchronization connection between U1_P1 and U1_P2. External SYNC input.
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Description
™
TPS546D24S 2-Phase SWIFT Step-Down Converter Evaluation Module
Test Setup
11
User's Guide