Texas Instruments TPS546C25EVM-1PH User Manual page 4

Hardware
2.1.3 Tip and Barrel Measurement
Figure 2-1 illustrates the tip and barrel measurement for switching node waveform on the TP8 with TP1.
2.1.4 List of Test Points, Jumpers, and Connectors
Table 2-1 lists the test point functions.
Test
Type
Point
BOOT1 T-H Loop
FB1 T-H Loop
TP1 SMB
TP2 SMB
TP3 T-H Loop
TP4 T-H Loop
TP5 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
TP15 T-H Loop
TP16 T-H Loop
TP17 SMB
TP18 T-H Loop
TP19 T-H Loop
VCC1 T-H Loop
VOSNS1 T-H Loop
4 TPS546C25EVM-1PH 4V to 18V, 35A, Buck Converter with PMBus and
Telemetry Evaluation Module
Metal Ground
Barrel
Probe
Tip
Figure 2-1. Tip and Barrel Measurement
Table 2-1. Test Point Functions
Name
BOOT1 Test point connection to the BOOT pin
FB1 Test point connection to the VSEL/FB pin
SW SMB connection to the SW node
VOUT SMB connection to the V
PVIN_SNS Kelvin sense connection to the PVIN
VO_EFF Connection for measuring efficiency
BODE-CH2 VOUT and BODE-CH2
PGND_SNS Kelvin sense connection to the PGND
VDRV Connection to the VDRV pin
SW Test point connection to the SW pin
VO_REG Connection for measuring regulation
EXTBIAS External Bias measurement point for the VDRV
PG Test point connection to the PGOOD pin
EN Test point connection to the EN pin
BODE-CH1 BODE-CH1
GND_REG Connection for measuring regulation
ALERT Connection to the SMB_ALERT
PGND_EFF Kelvin connection to the GND for efficiency measurement
EN SMB connection for EN signal on J6
AGND Connection to AGND pour and AGND pin
GOSNS Connection to the GOSNS pin
VCC1 Measurement point for the VCC
VOSNS1 Connection to the VOSNS1 pin
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out
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SLUUCZ1 – JULY 2024
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