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Test Setup and Procedure
4
Test Setup and Procedure
4.1
Test Setup
Figure 3
shows the correct jumper positions to configure the evaluation module for the typical application,
as shown in
Figure
Jumper
J6
4.2
Test Equipment
Power Supply: The input voltage source (VIN) should be a variable supply capable of 0V to 20V and
source at least 15A.
Multi-meters:
•
Voltmeter 1: Input voltage, connect from VIN to VIN-
•
Voltmeter 2: Output voltage, connect from VOUT to GND
•
Ammeter 1: Input current, must be able to handle 15A. Shunt resistor can be used as needed.
•
Ammeter 2: Output current, must be able to handle 3A. Shunt resistor can be used as needed.
Electronic Load: The load should be constant resistance (CR) or constant current (CC) capable. It should
safely handle 3A at 12V.
Oscilloscope: 20-MHz bandwidth and AC coupling. Measure the output voltage ripple directly across an
output capacitor with a short ground lead. It is not recommended to use a long-leaded ground connection
due to the possibility of noise being coupled into the signal. To measure other waveforms, adjust the
oscilloscope as needed.
5
Test Results
Figure 4
through
Figure 19
BOM and the configuration described in
variables measurements might differ slightly than the data presented.
6
LM5156EVM-BST User's Guide
1. The correct equipment connections and measurement points are shown in
Table 3. Standard Configuration Jumper Connections
Figure 3. Test Setup
present the typical performance of the LM5156EVM-BST according to the
Section
Copyright © 2020, Texas Instruments Incorporated
Position
Jumper from pin 2 to pin 3
4. Based on measurement techniques and environmental
SNVU696A – February 2020 – Revised June 2020
www.ti.com
Table 3
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