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User's Guide
TPS53819A Buck Controller Evaluation Module User's
Guide
The TPS53819AEVM-123 evaluation module (EVM) is designed to evaluate the TPS53819A. The TPS53819A is
a small-size single-buck controller with adaptive on-time D-CAP2 mode control. It provides a fixed 1.2-V output
at up to 25 A from a nominal 12-V input bus. This controller is an analog PWM controller allowing programming
and monitoring via the PMBus interface. The TPS53819AEVM-123 also uses a 5 mm × 6 mm TI power block
MOSFET (CSD87350Q5D) for high power density and superior thermal performance.
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1 Description..............................................................................................................................................................................
Applications............................................................................................................................................................2
1.2 Features.............................................................................................................................................................................
2 Electrical Performance Specifications.................................................................................................................................
3
Schematic................................................................................................................................................................................4
Setup................................................................................................................................................................................5
4.1 Test and Configuration Software........................................................................................................................................
4.2 Test Equipment..................................................................................................................................................................
Setup.................................................................................................................................................6
4.4 List of Test Points...............................................................................................................................................................
5.1 Configuration Procedure....................................................................................................................................................
6 Test Procedure......................................................................................................................................................................
6.1 Line and Load Regulation and Efficiency Measurement Procedure................................................................................
6.2 Control Loop Gain and Phase Measurement Procedure.................................................................................................
6.3 Equipment Shutdown.......................................................................................................................................................
7 Performance Data and Typical Characteristic Curves......................................................................................................
7.1
Efficiency..........................................................................................................................................................................13
7.2 Load Regulation...............................................................................................................................................................
7.3 Line Regulation................................................................................................................................................................
Load...............................................................................................................................................................14
Plot..........................................................................................................................................................................15
7.6 Transient Response.........................................................................................................................................................
7.7 Output Ripple...................................................................................................................................................................
7.8 Switching Node................................................................................................................................................................
Waveform...........................................................................................................................................................18
Waveform.........................................................................................................................................................19
Waveform...........................................................................................................................................20
7.12 Thermal Images.............................................................................................................................................................
8 EVM Assembly Drawing and PCB layout...........................................................................................................................
9 Bill of Materials.....................................................................................................................................................................
10 Revision History.................................................................................................................................................................
SLVU719B - MAY 2012 - REVISED NOVEMBER 2021
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ABSTRACT
Table of Contents
Selection............................................................................................................................8
GUI............................................................................................................................8
Description..............................................................................................................8
Copyright © 2021 Texas Instruments Incorporated
TPS53819A Buck Controller Evaluation Module User's Guide
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Summary of Contents for Texas Instruments TPS53819A
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Page 1: Table Of Contents
Guide ABSTRACT The TPS53819AEVM-123 evaluation module (EVM) is designed to evaluate the TPS53819A. The TPS53819A is a small-size single-buck controller with adaptive on-time D-CAP2 mode control. It provides a fixed 1.2-V output at up to 25 A from a nominal 12-V input bus. This controller is an analog PWM controller allowing programming and monitoring via the PMBus interface. -
Page 2: Description
The TPS53819AEVM-123 is designed to use a regulated 12-V bus to produce a regulated 1.2-V output at up to 25 A of load current. The TPS53819AEVM-123 is designed to demonstrate the TPS53819A in a typical low voltage application while providing a number of test points to evaluate the performance of the TPS53819A. -
Page 3: Electrical Performance Specifications
= 12 V, I = 25 A 91.4 ° Operating temperature °C This design uses TI Default PMBus settings SLVU719B – MAY 2012 – REVISED NOVEMBER 2021 TPS53819A Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 4: Schematic
Not Populated DATA TP11 LOOPB 100k 100k VOUT 10.0k TP13 TP12 LOOPA 10.0k Figure 3-1. TPS53819AEVM-123 Schematic TPS53819A Buck Controller Evaluation Module User's Guide SLVU719B – MAY 2012 – REVISED NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 5: Test Setup
Fusion Digital Power Designer is the Graphical User Interface (GUI) used to configure and monitor Texas Instrument’s (TI) TPS53819A power controller on this evaluation module (EVM). The application uses the PMBus protocol to communicate with the controller over serial bus by way of a TI USB Interface Adapter EVM included. -
Page 6: Recommended Test Setup
EVM. TPS53819A Buck Controller Evaluation Module User's Guide SLVU719B – MAY 2012 – REVISED NOVEMBER 2021 Submit Document Feedback Copyright ©... -
Page 7: List Of Test Points
Controller power-supply input TP11 LOOPB Input B for loop injection TP12 GND for sensitive analog circuitry SLVU719B – MAY 2012 – REVISED NOVEMBER 2021 TPS53819A Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 8: Jumper Configuration: Enable Selection
5 EVM Configuration Using the Fusion GUI In order to configure the TPS53819A controller on the EVM from its default values, it is required to use the TI Fusion Digital Power Designer software. It is necessary to have input voltage applied to the EVM prior to launching the software so the TPS53819A can respond to the GUI and the GUI can recognize the TPS53819A. -
Page 9: Figure 5-2. Tps53819A Gui Configure General Tab
EVM Configuration Using the Fusion GUI Figure 5-2. TPS53819A GUI Configure General Tab SLVU719B – MAY 2012 – REVISED NOVEMBER 2021 TPS53819A Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 10: Figure 5-3. Tps53819A Gui Configure, All Config Tab
EVM Configuration Using the Fusion GUI www.ti.com Figure 5-3. TPS53819A GUI Configure, All Config Tab TPS53819A Buck Controller Evaluation Module User's Guide SLVU719B – MAY 2012 – REVISED NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 11: Figure 5-4. Tps53819A Gui Status
EVM Configuration Using the Fusion GUI Figure 5-4. TPS53819A GUI Status SLVU719B – MAY 2012 – REVISED NOVEMBER 2021 TPS53819A Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 12: Test Procedure
6.3 Equipment Shutdown 1. Shut down the load. 2. Shut down V 3. Shut down fan. TPS53819A Buck Controller Evaluation Module User's Guide SLVU719B – MAY 2012 – REVISED NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 13: Performance Data And Typical Characteristic Curves
VIN = 12V 1.204 1.203 1.202 1.201 FCCM Output Current (A) G000 Figure 7-2. TPS53819AEVM-123 Load Regulation SLVU719B – MAY 2012 – REVISED NOVEMBER 2021 TPS53819A Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 14: Line Regulation
1000 12VIN DCM 12VIN FCCM 0.01 Input Voltage (V) G000 Figure 7-4. TPS53819AEVM-123 f Versus Load TPS53819A Buck Controller Evaluation Module User's Guide SLVU719B – MAY 2012 – REVISED NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 15: Bode Plot
7.6 Transient Response IOUT VOUT AC Figure 7-6. TPS53819AEVM-123 Load Transient, 12 V , 0-A to 15-A Eco-mode SLVU719B – MAY 2012 – REVISED NOVEMBER 2021 TPS53819A Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 16: Output Ripple
7.7 Output Ripple VIN AC VOUT AC Figure 7-8. TPS53819AEVM-123 Output Ripple, 12 V , 25 A TPS53819A Buck Controller Evaluation Module User's Guide SLVU719B – MAY 2012 – REVISED NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 17: Switching Node
, 1-A Load Eco-mode 7.8 Switching Node Figure 7-10. TPS53819AEVM-123 Switching Node, 12-V , 25-A Load Full Bandwidth SLVU719B – MAY 2012 – REVISED NOVEMBER 2021 TPS53819A Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 18: Turn-On Waveform
Figure 7-11. TPS53819AEVM-123 Enable Turn-On Waveform, 12-V , 1-Ω Load VREG VOUT Figure 7-12. TPS53819AEVM-123 V Turn-On Waveform, 12-V , 1-Ω Load TPS53819A Buck Controller Evaluation Module User's Guide SLVU719B – MAY 2012 – REVISED NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 19: Turn-Off Waveform
, 1-Ω Load VREG VOUT Figure 7-14. TPS53819AEVM-123 V Turn off Waveform, 12 V , 1-Ω Load SLVU719B – MAY 2012 – REVISED NOVEMBER 2021 TPS53819A Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 20: Pre-Bias Turn-On Waveform
7.12 Thermal Images Hottest point is the CSD87350Q5D Figure 7-16. TPS53819AEVM-123 Top Board, 12 V , 25-A Fan TPS53819A Buck Controller Evaluation Module User's Guide SLVU719B – MAY 2012 – REVISED NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 21: Figure 7-17. Tps53819Aevm-123 Bottom Board, 12 Vin
Hottest point is below the CSD87350Q5D Figure 7-17. TPS53819AEVM-123 Bottom Board, 12 V , 25-A Fan SLVU719B – MAY 2012 – REVISED NOVEMBER 2021 TPS53819A Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 22: Evm Assembly Drawing And Pcb Layout
EVM has been designed using six layers, 2-oz copper circuit board. Figure 8-1. TPS53819AEVM-123 Top Layer Assembly Drawing (Top View) Figure 8-2. TPS53819AEVM-123 Bottom Layer Assembly Drawing (Bottom View) TPS53819A Buck Controller Evaluation Module User's Guide SLVU719B – MAY 2012 – REVISED NOVEMBER 2021 Submit Document Feedback... -
Page 23: Figure 8-3. Tps53819Aevm-123 Top Copper
EVM Assembly Drawing and PCB layout Figure 8-3. TPS53819AEVM-123 Top Copper (Top View) Figure 8-4. TPS53819AEVM-123 Internal Layer 1 (Top View) SLVU719B – MAY 2012 – REVISED NOVEMBER 2021 TPS53819A Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 24: Figure 8-5. Tps53819Aevm-123 Internal Layer 3 (Top View)
Figure 8-5. TPS53819AEVM-123 Internal Layer 3 (Top View) Figure 8-6. TPS53819AEVM-123 Internal Layer 4 (Top View) TPS53819A Buck Controller Evaluation Module User's Guide SLVU719B – MAY 2012 – REVISED NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 25: Figure 8-7. Tps53819Aevm-123 Internal Layer 5 (Top View)
EVM Assembly Drawing and PCB layout Figure 8-7. TPS53819AEVM-123 Internal Layer 5 (Top View) Figure 8-8. TPS53819AEVM-123 Bottom Copper (Top View) SLVU719B – MAY 2012 – REVISED NOVEMBER 2021 TPS53819A Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 26: Bill Of Materials
Updated the numbering format for tables, figures, and cross-references throughout the document....2 • Updated the user's guide title..........................TPS53819A Buck Controller Evaluation Module User's Guide SLVU719B – MAY 2012 – REVISED NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... - Page 27 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 28 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 29 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 30 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 31 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 32 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...
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