Table of Contents
Advertisement
Quick Links
www.ti.com
User's Guide
TPS54383 Step-Down Converter Evaluation Module User's
Guide
1
Introduction.............................................................................................................................................................................3
1.1 Description.........................................................................................................................................................................
1.2
Applications........................................................................................................................................................................3
1.3 Features.............................................................................................................................................................................
3
Schematic................................................................................................................................................................................5
(JP3).....................................................................................................................................................6
3.2 Enable Jumpers (JP1 and JP2).........................................................................................................................................
Descriptions.......................................................................................................................................................6
4 Test Set Up..............................................................................................................................................................................
4.1 Equipment..........................................................................................................................................................................
Setup................................................................................................................................................................9
4.3 Start Up / Shut Down Procedure......................................................................................................................................
4.4 Output Ripple Voltage Measurement Procedure..............................................................................................................
4.6 Equipment Shutdown.......................................................................................................................................................
5.1
Efficiency..........................................................................................................................................................................12
5.2 Line and Load Regulation................................................................................................................................................
5.3 Output Voltage Ripple......................................................................................................................................................
5.4 Switch Node.....................................................................................................................................................................
5.6 Light Load Operation (revision A PCB only)....................................................................................................................
Materials.....................................................................................................................................................................22
8 Revision History...................................................................................................................................................................
Figure 4-1. TPS54383EVM Recommended Test Set-Up............................................................................................................
Figure 4-3. Control Loop Measurement Setup..........................................................................................................................
I
= 0-2 A..........................................................................................................................................................................
OUT2
3.3 V I
= 0-2 A.................................................................................................................................................................
OUT2
Figure 5-5. TPS54383EVM Gain and Phase vs Frequency......................................................................................................
Figure 6-1. TPS54383EVM Component Placement (viewed from top).....................................................................................
Figure 6-2. TPS54383EVM Silkscreen (viewed from top).........................................................................................................
Figure 6-3. TPS54383EVM Top Copper (viewed from top).......................................................................................................
Table 3-1. Test Point Descriptions...............................................................................................................................................
SLUU285D - JULY 2007 - REVISED OCTOBER 2021
Submit Document Feedback
Table of Contents
Specifications........................................................................................................4
Procedure..................................................................................................11
= 8 V)....................................................................................................................
Layout.................................................................................................................................16
List of Figures
Schematic........................................................................................................................................5
= 12 V, I
IN
top)......................................................................................................20
top)......................................................................................................21
List of Tables
Specifications.........................................................................................................................4
Copyright © 2021 Texas Instruments Incorporated
Curves.............................................................................12
=9.6-13.2 V, V
= 5.0 V I
IN
OUT1
=9.6-13.2 V, V
= 5.0 V I
IN
OUT1
= I
= 2 A).............................................................
OUT1
OUT2
= 2 A Ch1: TP9 (SW1), Ch2: TP12 (SW2).......................
OUT
top).............................................................................................19
TPS54383 Step-Down Converter Evaluation Module User's Guide
Table of Contents
= 0-2 A, V
= 3.3 V
OUT1
OUT2
= 0-2 A, V
=
OUT1
OUT2
3
3
6
8
8
11
11
11
13
13
14
14
15
22
9
10
10
12
13
13
14
14
16
17
18
6
1
Advertisement
Table of Contents
Related Manuals for Texas Instruments TPS54383
Summary of Contents for Texas Instruments TPS54383
-
Page 1: Table Of Contents
Figure 6-6. TPS54383EVM Internal 2 (x-ray view from top)......................21 List of Tables Table 2-1. Electrical Performance Specifications.........................4 Table 3-1. Test Point Descriptions............................... SLUU285D – JULY 2007 – REVISED OCTOBER 2021 TPS54383 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... - Page 2 Table 7-1. TPS54383EVM List of Materials..........................Trademarks All trademarks are the property of their respective owners. TPS54383 Step-Down Converter Evaluation Module User's Guide SLUU285D – JULY 2007 – REVISED OCTOBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
-
Page 3: Introduction
TPS54383EVM is designed to use a regulated 12-V (+10% / -20%) bus to produce two regulated power rails, 5.0 V and 3.3 V at up to 2 A of load current each. TPS54383EVM is designed to demonstrate the TPS54383 in a typical 12-V bus system while providing a number of test points to evaluate the performance of the TPS54383 in a given application. -
Page 4: Tps54383Evm Electrical Performance Specifications
= min to max range Recommended Load Current limited to 2 A to prevent rectifier diodes surface temperature from exceeding 65°C. TPS54383 Step-Down Converter Evaluation Module User's Guide SLUU285D – JULY 2007 – REVISED OCTOBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 5: Schematic
Figure 3-1. TPS54383EVM Schematic Note For reference only, see Table 7-1, List of Materials for specific values. SLUU285D – JULY 2007 – REVISED OCTOBER 2021 TPS54383 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 6: Sequencing Jump (Jp3)
The TPS54383EVM provides a 3-pin, 100-mil header and shunt for programming the TPS54383’s sequencing function. Placing the JP3 shunt in the left position connects the sequence pin to BP and sets the TPS54383 controller to sequence Channel 2 prior to Channel 1 when Enable 2 is activated. Placing the JP3 shunt in the right position connects the sequence pin to GND and sets the TPS54383 converter to sequence Channel 1 prior to Channel 1 when Enable 1 is activated. - Page 7 TP19 allow a user to limit the ground loop area by using the Tip and Barrel measurement technique shown in Figure 4-2. All output ripple measurements should be made using the Tip and Barrel measurement. SLUU285D – JULY 2007 – REVISED OCTOBER 2021 TPS54383 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
-
Page 8: Test Set Up
The EVM should not be left unattended while powered. The EVM should not be probed while the fan is not running. TPS54383 Step-Down Converter Evaluation Module User's Guide SLUU285D – JULY 2007 – REVISED OCTOBER 2021 Submit Document Feedback Copyright ©... -
Page 9: Equipment Setup
Measurement for Vout ripple LOAD2 3.3V @ LOAD1 5.0V @ Figure 4-1. TPS54383EVM Recommended Test Set-Up SLUU285D – JULY 2007 – REVISED OCTOBER 2021 TPS54383 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 10: Figure 4-2. Tip And Barrel Measurement Technique (Output Ripple Measurement Using Tp3 And Tp4 Or Tp18 And Tp19)
TP18 and TP19) LOAD2 3.3V @ LOAD1 5.0V @ Isolation Transformer Figure 4-3. Control Loop Measurement Setup TPS54383 Step-Down Converter Evaluation Module User's Guide SLUU285D – JULY 2007 – REVISED OCTOBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 11: Start Up / Shut Down Procedure
1. Shut down oscilloscope 2. Shut down VIN 3. Shut down LOAD1 4. Shut down fan SLUU285D – JULY 2007 – REVISED OCTOBER 2021 TPS54383 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 12: Tps54383Evm Typical Performance Data And Characteristic Curves
= 5.0 V I = 0-2 A, V OUT1 OUT1 OUT2 = 3.3 V I = 0-2 A OUT2 TPS54383 Step-Down Converter Evaluation Module User's Guide SLUU285D – JULY 2007 – REVISED OCTOBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 13: Line And Load Regulation
Figure 5-3. TPS54383EVM Output Voltage Ripple (V = 13.2 V, I = 2 A) OUT1 OUT2 SLUU285D – JULY 2007 – REVISED OCTOBER 2021 TPS54383 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 14: Switch Node
4.995 4.990 4.990 4.985 4.985 Frequency - Hz Figure 5-5. TPS54383EVM Gain and Phase vs Frequency TPS54383 Step-Down Converter Evaluation Module User's Guide SLUU285D – JULY 2007 – REVISED OCTOBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 15: Light Load Operation (Revision A Pcb Only)
5.6 Light Load Operation (revision A PCB only) Under light load operation the TPS54383 controller can enter a pulse skipping mode when the inductor current falls below 800 mA. Under this mode of operation the output ripple voltage will increase. -
Page 16: Evm Assembly Drawings And Layout
1.15” x 2.15” active area on the top side and all active traces to the top and bottom layers to allow the user to easily view, probe and evaluate the TPS54383 control device in a practical double-sided application. -
Page 17: Figure 6-2. Tps54383Evm Silkscreen (Viewed From Top)
EVM Assembly Drawings and Layout Figure 6-2. TPS54383EVM Silkscreen (viewed from top) SLUU285D – JULY 2007 – REVISED OCTOBER 2021 TPS54383 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 18: Figure 6-3. Tps54383Evm Top Copper (Viewed From Top)
EVM Assembly Drawings and Layout www.ti.com Figure 6-3. TPS54383EVM Top Copper (viewed from top) TPS54383 Step-Down Converter Evaluation Module User's Guide SLUU285D – JULY 2007 – REVISED OCTOBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 19: Figure 6-4. Tps54383Evm Bottom Copper (X-Ray View From Top)
EVM Assembly Drawings and Layout Figure 6-4. TPS54383EVM Bottom Copper (x-ray view from top) SLUU285D – JULY 2007 – REVISED OCTOBER 2021 TPS54383 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 20: Figure 6-5. Tps54383Evm Internal 1 (X-Ray View From Top)
EVM Assembly Drawings and Layout www.ti.com Figure 6-5. TPS54383EVM Internal 1 (x-ray view from top) TPS54383 Step-Down Converter Evaluation Module User's Guide SLUU285D – JULY 2007 – REVISED OCTOBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 21: Figure 6-6. Tps54383Evm Internal 2 (X-Ray View From Top)
EVM Assembly Drawings and Layout Figure 6-6. TPS54383EVM Internal 2 (x-ray view from top) SLUU285D – JULY 2007 – REVISED OCTOBER 2021 TPS54383 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 22: List Of Materials
Updated the numbering format for tables, figures, and cross-references throughout the document....3 • Updated the user's guide title..........................TPS54383 Step-Down Converter Evaluation Module User's Guide SLUU285D – JULY 2007 – REVISED OCTOBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... - Page 23 STANDARD TERMS FOR EVALUATION MODULES Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms set forth herein.
- Page 24 www.ti.com Regulatory Notices: 3.1 United States 3.1.1 Notice applicable to EVMs not FCC-Approved: FCC NOTICE: This kit is designed to allow product developers to evaluate electronic components, circuitry, or software associated with the kit to determine whether to incorporate such items in a finished product and software developers to write software applications for use with the end product.
- Page 25 www.ti.com Concernant les EVMs avec antennes détachables Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à...
- Page 26 www.ti.com EVM Use Restrictions and Warnings: 4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS. 4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling or using the EVM, including without limitation any warning or restriction notices.
- Page 27 Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief in any United States or foreign court. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2019, Texas Instruments Incorporated...
- Page 28 TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2021, Texas Instruments Incorporated...