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TPS51220A EVM-476
Texas Instruments TPS51220A EVM-476 Manuals
Manuals and User Guides for Texas Instruments TPS51220A EVM-476. We have
1
Texas Instruments TPS51220A EVM-476 manual available for free PDF download: User Manual
Texas Instruments TPS51220A EVM-476 User Manual (27 pages)
Buck Controller Evaluation Module
Brand:
Texas Instruments
| Category:
Control Unit
| Size: 1 MB
Table of Contents
Table of Contents
1
TPS51220A Buck Controller Evaluation Module User's Guide
1
Introduction
3
Description
3
Typical Applications
3
Features
3
Electrical Performance Specifications
3
Table 3-1. TPS51220A EVM-476 Electrical Performance Specifications
3
Schematic
5
Figure 4-1. TPS51220A EVM-476 Schematic
5
Test Setup
6
Test Equipment
6
Recommended Test Setup
6
Figure 5-1. TPS51220A EVM-476 Recommended Test
6
Figure 5-2. Recommended Tip and Barrel Technique to Measure Output Ripple Voltage
6
List of Test Points
7
Table 5-1. Test Point Functions Found on the TPS51220A EVM-476
7
Test Procedure
8
Line/Load Regulation and Efficiency Measurement Procedure
8
Output Ripple Test
9
Measuring Improved Light Load Efficiency
9
Table 6-1. SKIPSEL1 or SKIPSEL2 (Jumpers JP1 and JP4)
9
Control Architecture and OVP Select
10
Overcurrent Trip Level and Output Discharge Select
10
Table 6-2. FUNC (Jumper JP2) Selections
10
Table 6-3. TRIP (JP3) Selections
10
Performance Data and Typical Characteristic Curves
11
Efficiency
11
Load Regulation
11
Figure 7-1. Efficiency, 12 VIN , 5.0-V Output
11
Figure 7-2. Efficiency, 12 VIN , 3.3-V Output
11
Figure 7-3. 12 VIN , 5.0-V Load Regulation
11
Figure 7-4. 12 VIN , 3.3-V Load Regulation
11
Bode Plot
12
Transient Response
12
Figure 7-5. CCM Mode 5-V Loop Response Gain and Phase, F
12
Figure 7-6. CCM Mode 3.3-V Loop Response Gain and Phase, F
12
Figure 7-7. 5-V CCM Mode Load Transient
12
Figure 7-8. 5-V D-CAP Mode Load Transient
12
Output Ripple and Switch Node
13
Turn-On Waveform
13
Figure 7-9. 5-V CCM Mode Output Ripple and Switch Node
13
Figure 7-10. 3.3-V CCM Mode Output Ripple
13
Figure 7-11. Enable Turn-On Waveform
13
Turn-Off Waveform
14
Figure 7-12. Enable Turn-Off with Discharge Waveform
14
Figure 7-13. Enable Turn-Off Without Discharge Waveform
14
EVM Assembly Drawing and PCB Layout
15
Figure 8-1. Top Layer Assembly Drawing (Top View)
15
Figure 8-2. Bottom Assembly Drawing (Top View)
16
Figure 8-3. Top Copper (Top View)
17
Figure 8-4. Internal Layer 1 (Top View)
18
Figure 8-5. Internal Layer 2 (Top View)
19
Figure 8-6. Bottom Copper (Top View)
20
List of Materials
21
Revision History
21
Table 9-1. EVM Components List According to Schematic Shown in Figure 4-1
21
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