SLUU274A
May 2007 – January 2022
TPS40193
Trademarks
1
Introduction
1.1
Description
1.2
Applications
1.3
Features
2
TPS40193EVM-001 Electrical Performance Specifications
3
Schematic
4
General Configuration and Description
4.1
Adjusting Output Voltage (R7)
4.2
Adjusting Short-Circuit Protection (R9)
4.3
Disable Jumper (JP1)
4.4
Test Point Descriptions
4.4.1
Input Voltage Monitoring (TP1, TP2)
4.4.2
Power-Good (TP3, TP4, TP5)
4.4.3
Compensation and Initialization (TP6)
4.4.4
Switching Waveforms (TP7, TP8, TP9, TP10)
4.4.5
Loop Analysis (TP11, TP12, TP13, TP14)
4.4.6
Output Voltage and Monitoring (TP15, TP16)
4.4.7
Pre-Bias Input (TP17)
5
Test Setup
5.1
Equipment
5.1.1
Voltage Source
5.1.2
Meters
5.1.3
Loads
5.1.4
Oscilloscope
5.1.5
Recommended Wire Gauge
5.1.6
Other
5.2
Equipment Setup
5.3
Start-Up/Shutdown Procedure
5.4
Output Ripple Voltage Measurement Procedure
5.5
Control Loop Gain and Phase Measurement Procedure
5.6
Equipment Shutdown
6
TPS40193EVM-001 Typical Performance Data and Characteristic Curves
6.1
Efficiency
6.2
Line and Load Regulation
6.3
Output Voltage Ripple
6.4
Switch Node
6.5
Control Loop Bode Plot
6.5.1
Low Line (VIN = 8 V)
6.5.2
High Line (VIN = 14 V)
7
EVM Assembly Drawings and Layout
8
Bill of Materials
9
Revision History
6.5.2
High Line (V
IN
= 14 V)
Figure 6-7
TPS40193EVM-001 Gain and Phase vs Frequency