Texas Instruments TLVM13620, Руководство пользователя

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4 Test Setup and Procedure
4.1 EVM Connections
Referencing the EVM connections described in Table 4-1 , use the recommended test setup in Figure 4-1
to evaluate the TLVM13660. Working at an ESD-protected workstation, make sure that any wrist straps,
bootstraps, or mats are connected and referencing the user to earth ground before power is applied to the
EVM.
A
COM
Ammeter 1
Electronic Load
+ -
V
Voltmeter 1
COM
V
Voltmeter 2
COM
Oscilloscope
+
Power Supply
A
COM
Ammeter 2
-
Figure 4-1. EVM Test Setup
SPACER
Table 4-1. EVM Power Connections
Label Description
VIN+ Positive input power connection
VIN– Negative input power connection
VOUT+ Positive output power connection
VOUT– Negative output power connection
Table 4-2. EVM Signal Connections
Label
(1)
Description
VIN S+ Positive input sense terminal. Connect the multimeter positive lead for measuring efficiency.
VIN S– Negative input sense terminal. Connect a multimeter negative lead for measuring efficiency.
VOUT S+ Positive output sense terminal. Connect a multimeter positive lead for measuring efficiency and line and load regulation.
VOUT S–
Negative output sense terminal. Connect the multimeter negative lead for measuring efficiency and line and load
regulation.
PGND Ground reference point
EN
Precision enable input and input voltage UVLO protection. Tie EN to GND to disable the regulator. Use a logic signal to
control EN for remote ON/OFF functionality. Leave EN open for UVLO turn-on thresholds set at 5.1 V.
PGOOD Power-good monitor output. This is an open-drain flag with a 100-kΩ pullup resistor to VOUT.
BODE, VOUT
Bode plot measurement and signal injection. A 10-Ω resistor from BODE to VOUT facilitates oscillator signal injection
for bode plot measurement. Remove the jumper and apply a swept-frequency signal bettwen BODE and VOUT while
measuring the respective response at each terminal for loop gain measurement.
(1) Refer to the TLVM13660 data sheet for absolute maximum ratings associated with the features in this table.
www.ti.com Test Setup and Procedure
SLVUCF7 – MARCH 2022
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