Texas Instruments TPSM8S6C24 User Manual

Power module evaluation module

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EVM User's Guide: TPSM8S6C24SEVM-1PH

TPSM8S6C24 Power Module Evaluation Module

Description

The TPSM8S6C24SEVM-1PH is designed to provide

a quick setup to evaluate TPSM8S6C24 device

and gain familiarity with device down to PMBus

command and extended write protection.

The TPSM8S6C24 is a configurable

single-output buck converter module. The

TPSM8S6C24SEVM-1PH uses a nominal 12-V bus to

produce a regulated 1.2-V output at up to 35 A of load

current. The TPSM8S6C24SEVM-1PH demonstrates

the single output capability.

Get Started

1. Order the TPSM8S6C24SEVM-1PH on

2. Visit

TPSM8S6C24SEVM-1PH

load Fusion GUI software.

SLUUCU3 – NOVEMBER 2023

Submit Document Feedback

Features

•

Applications

•

ti.com

to launch or down

TPSM8S6C24SEVM-1PH

Evaluate TPSM8S6C24 device using the provided

test points on the EVM

Evaluate TPSM8S6C24 device configuration and

monitoring using Fusion GUI

Data center

switches,

rack servers

Active antenna

system,

remote radio

baseband unit

Automated test

equipment, CT,

ASIC, SoC, FPGA, DSP core and I/O voltage

TPSM8S6C24 Power Module Evaluation Module

Description

and

PET

and

MRI

Table of Contents

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Summary of Contents for Texas Instruments TPSM8S6C24

Page 1 Description Features The TPSM8S6C24SEVM-1PH is designed to provide • Evaluate TPSM8S6C24 device using the provided a quick setup to evaluate TPSM8S6C24 device test points on the EVM and gain familiarity with device down to PMBus ® • Evaluate TPSM8S6C24 device configuration and command and extended write protection.
Page 2: Kit Contents
EVM. 1.2 Kit Contents Table 1-1 lists the contains of the EVM kit. Contact the Texas Instruments Product Information Center nearest you if any components are missing. TI highly recommends that users check the TI website at https://www.ti.com to verify that the latest versions of the Fusion GUI software is being used Table 1-1.
Page 3: Specifications
1.4 Device Information TPSM8S6C24 is 2.95-V to 16-V, single 35 A synchronous buck power module, up to 4x stackable, with PMBus and extended write protection. The TPSM8S6C24SEVM-1PH uses the TPSM8S6C24 device in a buck design. The device is designed from a nominal 12-V bus to produce a regulated 1.2-V output at up to 35-A of load current.
Page 4 AWG #10 with the total length of wire less than two feet (1-foot output, 1-foot return). A thicker wire gauge can be required to minimize the voltage drop in the wires. TPSM8S6C24 Power Module Evaluation Module SLUUCU3 – NOVEMBER 2023 Submit Document Feedback Copyright ©...
Page 5 EN pin selections on JP4. Table 2-3. JP4 Selections Shunt Position Selection CNTL_INPUT PMBus adapter control signal UVLO Resistor divider to PVIN EN short to ground SLUUCU3 – NOVEMBER 2023 TPSM8S6C24 Power Module Evaluation Module Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 6 PMBus socket for TI FUSION adapter PVIN VIN+ connector PGND VIN– connector AVIN External AVIN connector VOUT VOUT+ connector PGND VOUT– connector TPSM8S6C24 Power Module Evaluation Module SLUUCU3 – NOVEMBER 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 7: Test Setup
The TI Fusion Digital Power Designer is the graphical user interface (GUI) used to configure and monitor the Texas Instruments TPSM8S6C24 power converter installed on this evaluation module. The application uses the PMBus protocol to communicate with the controller over serial bus by way of a TI USB adapter described in Section 2.1.6.
Page 8 3 Software 3.1 Using the Fusion GUI 3.1.1 Opening the Fusion GUI The Fusion GUI includes IC_DEVICE_ID in scanning mode to find TPSM8S6C24. The EVM needs power to be recognized by the Fusion GUI. See Section 3.2 for the recommended procedure.
Page 9 PMBus registers of the follower, the controller relays these commands to the followers. All commands on this tab are for PHASE = 0xFF. Figure 3-2. General Settings SLUUCU3 – NOVEMBER 2023 TPSM8S6C24 Power Module Evaluation Module Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 10 Changing the On/Off Config prompts a pop-up window with details of the options shown in Figure 3-3. This pop-up provides multiple options on what turns on and off power conversion. By default, the TPSM8S6C24 is configured to CONTROL Pin Only, which is the EN/UVLO pin. Figure 3-3. Configure – ON_OFF_CONFIG TPSM8S6C24 Power Module Evaluation Module SLUUCU3 –...
Page 11 Power Conversion, then Close and continue. The GUI automatically disables conversion, writes the new value, and enables conversion again. Figure 3-4. Pop-Up When Trying to Change FREQUENCY_SWITCH With Conversion Enabled SLUUCU3 – NOVEMBER 2023 TPSM8S6C24 Power Module Evaluation Module Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 12 The sources of SMBALERT that can be masked are found and configured on the SMBALERT# Mask tab (see Figure 3-5). Figure 3-5. Configure – SMBALERT# Mask TPSM8S6C24 Power Module Evaluation Module SLUUCU3 – NOVEMBER 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 13 Write protection options • Configuration of Vout Scale Loop, Vout Transition Rate, and Iout Cal Offset Figure 3-6. Configure – Device Info SLUUCU3 – NOVEMBER 2023 TPSM8S6C24 Power Module Evaluation Module Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 14 3.1.7 Phase Commands Use the Phase Command tab (Figure 3-7) to calibrate the IOUT and temperature of each phase. Figure 3-7. Phase Commands TPSM8S6C24 Power Module Evaluation Module SLUUCU3 – NOVEMBER 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 15 3-8) to configure all of the configurable parameters, which also shows other details like Hex encoding. Figure 3-8. Configure – All Config SLUUCU3 – NOVEMBER 2023 TPSM8S6C24 Power Module Evaluation Module Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 16 With two devices stacked together, the Iout reading is the total load supported by both devices. Iout also shows the current in each phase. Figure 3-9. Monitor Screen TPSM8S6C24 Power Module Evaluation Module SLUUCU3 – NOVEMBER 2023 Submit Document Feedback...
Page 17 Software 3.1.10 Status Selecting Status screen from lower left corner (Figure 3-10) shows the status of the device. Figure 3-10. Status Screen SLUUCU3 – NOVEMBER 2023 TPSM8S6C24 Power Module Evaluation Module Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 18: Evm Configuration Using The Fusion Gui
2.2.1. Make sure the input voltage is applied to the EVM prior to launching the software so that the TPSM8S6C24 can respond to the GUI and the GUI can recognize the device. The default configuration for the EVM to stop converting is set by the EN resistor divider to a nominal input voltage of 4.22 V.
Page 19 TPSM8S6C24SEVM-1PH. The input voltage is 12 V and the oscilloscope measurements use 20-MHz bandwidth limiting, unless otherwise noted. 4.1.1 Efficiency Figure 4-1. VOUT Efficiency SLUUCU3 – NOVEMBER 2023 TPSM8S6C24 Power Module Evaluation Module Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 20: Load Regulation
Implementation Results www.ti.com 4.1.2 Load Regulation Figure 4-2. VOUT Load Regulation 4.1.3 Line Regulation Figure 4-3. VOUT Line Regulation TPSM8S6C24 Power Module Evaluation Module SLUUCU3 – NOVEMBER 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 21: Transient Response
Figure 4-4 and show the transient response waveform with a 17.5-A to 35-A transient at 1 A/µs. Figure 4-4. VOUT Transient Response SLUUCU3 – NOVEMBER 2023 TPSM8S6C24 Power Module Evaluation Module Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 22 Implementation Results www.ti.com 4.1.5 Control Loop Bode Plot Figure 4-5. VOUT Bode Plot, 12Vin, 1.2-V, 35-A Load TPSM8S6C24 Power Module Evaluation Module SLUUCU3 – NOVEMBER 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 23 4.1.7 Control On Figure 4-8 and illustrate the start-up from control on waveforms at 35-A outputs. Figure 4-8. VOUT Start-Up From Enable, 35-A Load SLUUCU3 – NOVEMBER 2023 TPSM8S6C24 Power Module Evaluation Module Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 24: Control Off
TPSM8S6C24SEVM-1PH thermal image. = 12 V, V =1.2 V, I = 35 A, Airflow = 200 LFM, 10-min soak Figure 4-10. Thermal Image TPSM8S6C24 Power Module Evaluation Module SLUUCU3 – NOVEMBER 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 25 Output voltage measurement TP21 PGND_EFF point for VOUT– (GND) SLUUCU3 – NOVEMBER 2023 TPSM8S6C24 Power Module Evaluation Module Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 26 TP17. 4. Connect the ground leads of both probe channels to TP8. 5. On the network analyzer, measure the Bode as TP17/TP16 (Out/In). TPSM8S6C24 Power Module Evaluation Module SLUUCU3 – NOVEMBER 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 27 S YNC S YNC SYNC TP14 P GND P GND MSEL1 BCX_CLK Ne t-Tie MSEL1 BCX_CLK MSEL2 Output: TPSM8S6C24: 1.2V at 35A MSEL2 BCX_DAT TP15 P GND ADRSEL BCX_DAT Output: TPSM8S6B24: 3.3V at 25A ADRSEL PMB_CLK TP21 VS EL DATA...
Page 28: Evm Assembly Drawing And Pcb Layout
Figure 5-5. TPSM8S6C24SEVM-1PH Internal Layer (Top View) 1 (Top View) Figure 5-6. TPSM8S6C24SEVM-1PH Internal Layer Figure 5-7. TPSM8S6C24SEVM-1PH Internal Layer 2 (Top View) 3 (Top View) TPSM8S6C24 Power Module Evaluation Module SLUUCU3 – NOVEMBER 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 29 4 (Top View) 5 (Top View) Figure 5-10. TPSM8S6C24SEVM-1PH Internal Layer Figure 5-11. TPSM8S6C24SEVM-1PH Internal 6 (Top View) Bottom Layer (Top View) SLUUCU3 – NOVEMBER 2023 TPSM8S6C24 Power Module Evaluation Module Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 30 RES, 10, 5%, 0.1 W, AEC-Q200 Grade 0, CRCW060310R0JNEA Vishay-Dale 0603 0603 30.1 k RES, 30.1 k, 1%, 0.063 W, AEC-Q200 CRCW040230K1FKED Vishay-Dale 0402 Grade 0, 0402 TPSM8S6C24 Power Module Evaluation Module SLUUCU3 – NOVEMBER 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 31 CAP, AL, 100 μF, 35 V, ±20%, 0.15 Ω, EEE-FC1V101P Panasonic SMT Radial G C13, C15 0.022 μF CAP, CERM, 0.022 μF, 50 V, ±10%, X7R, GRM155R71H223KA12D Murata 0402 0402 SLUUCU3 – NOVEMBER 2023 TPSM8S6C24 Power Module Evaluation Module Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 32 RES, 10.0 k, 1%, 0.063 W, AEC-Q200 CRCW040210K0FKED Vishay-Dale 0402 Grade 0, 0402 SH-JP1, SH-JP2 Shunt, 100mil, Gold plated, Black SNT-100-BK-G Samtec Shunt TPSM8S6C24 Power Module Evaluation Module SLUUCU3 – NOVEMBER 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 33 Trademarks PMBus ® is a registered trademark of System Management Interface Forum Inc. All trademarks are the property of their respective owners. SLUUCU3 – NOVEMBER 2023 TPSM8S6C24 Power Module Evaluation Module Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 34 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 35 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 36 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 37 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 38 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 © 2023, Texas Instruments Incorporated...
Page 39 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 © 2023, Texas Instruments Incorporated...

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