SLUU285D
July 2007 – October 2021
TPS54283
,
TPS54286
,
TPS54383
,
TPS54386
Trademarks
1
Introduction
1.1
Description
1.2
Applications
1.3
Features
2
TPS54383EVM Electrical Performance Specifications
3
Schematic
3.1
Sequencing Jump (JP3)
3.2
Enable Jumpers (JP1 and JP2)
3.3
Test Point Descriptions
3.3.1
Input Voltage Monitoring (TP1 and TP2)
3.3.2
Channel 1 Output Voltage Monitoring (TP3 and TP4)
3.3.3
Channel 1 Loop Analysis (TP5, TP6, TP7 and TP8)
3.3.4
Channel 1 Switching Waveforms (TP9 and TP10)
3.3.5
TPS54383 Device Ground (TP11)
3.3.6
Channel 2 Switching Waveforms (TP12 and TP13)
3.3.7
Channel 2 Loop Analysis (TP14, TP15, TP16 and TP17)
3.3.8
Output Voltage Monitoring (TP18 and TP19)
4
Test Set Up
4.1
Equipment
4.1.1
Voltage Source
4.1.2
Meters
4.1.3
Loads
4.1.4
Oscilloscope
4.1.5
Recommended Wire Gauge
4.1.6
Other
4.2
Equipment Setup
4.2.1
Procedure
4.2.2
Diagram
4.3
Start Up / Shut Down Procedure
4.4
Output Ripple Voltage Measurement Procedure
4.5
Control Loop Gain and Phase Measurement Procedure
4.6
Equipment Shutdown
5
TPS54383EVM Typical Performance Data and Characteristic Curves
5.1
Efficiency
5.2
Line and Load Regulation
5.3
Output Voltage Ripple
5.4
Switch Node
5.5
Control Loop Bode Plot (low line, VIN = 8 V)
5.6
Light Load Operation (revision A PCB only)
6
EVM Assembly Drawings and Layout
7
List of Materials
8
Revision History
4.4
Output Ripple Voltage Measurement Procedure
Increase VIN from 0 V to 12 V
DC
.
Adjust LOAD1 to desired load between 0 A
DC
and 2 A
DC
.
Adjust VIN to desired load between 9.6 V
DC
and 13.2 V
DC
.
Connect oscilloscope probe to TP3 and TP4 or TP18 and TP19 as shown in
Figure 4-2
.
Measure output ripple.
Decrease VIN to 0 V
DC
.
Decrease LOAD1 to 0 A.