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5.2 Line and Load Regulation

Figure 5-2. TPS40190EVM-001 Line and Load Regulation

TPS40190EVM Typical Performance Data and Characteristic Curves

SLUU232A – SEPTEMBER 2005 – REVISED JANUARY 2022

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TPS40190 Buck Controller Evaluation Module User's Guide

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Copyright © 2022 Texas Instruments Incorporated

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Содержание TPS40190EVM-001

Страница 1: ... 4 3 Start Up Shutdown Procedure 7 4 4 Control Loop Gain and Phase Measurement Procedure 8 4 5 Equipment Shutdown 8 5 TPS40190EVM Typical Performance Data and Characteristic Curves 8 5 1 Efficiency 8 5 2 Line and Load Regulation 9 6 EVM Assembly Drawings and Layout 10 7 List of Materials 14 8 Revision History 15 Trademarks All trademarks are the property of their respective owners www ti com Table...

Страница 2: ...xed by the TPS40190 Single main switch N channel MOSFET and single synchronous rectifier N channel MOSFET Double sided 3 inch 3 inch PCB with all components on top side Active converter uses less than 1 2 square inches 1 775 0 670 Convenient test points for probing critical waveforms and non invasive loop response testing 2 TPS40190EVM 001 Electrical Performance Specifications Table 2 1 TPS40190EV...

Страница 3: ... Note The schematic is for reference only See Table 3 2 for specific values www ti com Schematic SLUU232A SEPTEMBER 2005 REVISED JANUARY 2022 Submit Document Feedback TPS40190 Buck Controller Evaluation Module User s Guide 3 Copyright 2022 Texas Instruments Incorporated ...

Страница 4: ...le current limit for short circuit protection The current limit is selected from three levels by placing a resistor at R6 The TPS40190 compares the voltage drop across the high side FET VDD to SW to an internal reference voltage selected during start up The voltage levels are shown in Table 3 2 Table 3 2 Adjusting VSCP with R6 VSCP R6 160 mV 3 9 k 320 mV OPEN 420 mV 12 k The current before declari...

Страница 5: ...5 Recommended Wire Gauge V12V_IN to J1 The connection between the source voltage V12V_IN and J1 of the TPS40190EVM 001 can carry as much as 3 ADC The minimum recommended wire size is AWG 16 with the total length of wire less than four feet 2 feet input 2 feet return J2 to LOAD1 Power The power connection between J2 of TPS40190EVM 001 and LOAD1 can carry as much as 15 ADC The minimum recommended wi...

Страница 6: ...and J1 as shown in Figure 4 1 4 Connect voltmeter V1 to TP6 and TP7 as shown in Figure 4 1 5 Connect LOAD1 to J2 as shown in Figure 4 1 Set LOAD1 to constant current mode to sink 0 ADC before V12V_IN is applied 6 Connect voltmeter V2 across TP8 and TP11 as shown in Figure 4 1 7 Connect an oscilloscope probe to TP9 and TP10 as shown in Figure 4 1Figure 3 8 Place a fan as shown in Figure 4 1 and tur...

Страница 7: ...Procedure 1 Increase V12V_IN from 0 V to 10 VDC 2 Vary LOAD1 from 0 ADC to 10 ADC 3 Vary V12V_IN from 1 VDC to 14 VDC 4 Decrease LOAD1 to 0 A www ti com Test Setup SLUU232A SEPTEMBER 2005 REVISED JANUARY 2022 Submit Document Feedback TPS40190 Buck Controller Evaluation Module User s Guide 7 Copyright 2022 Texas Instruments Incorporated ...

Страница 8: ... 9 Disconnect the isolation transformer from TP2 and TP3 before making other measurements signal injection into feedback can interfere with accuracy of other measurements 4 5 Equipment Shutdown 1 Shut down the oscilloscope 2 Shut down LOAD1 3 Shut down V12V_IN 4 Shut down FAN 5 TPS40190EVM Typical Performance Data and Characteristic Curves Figure 5 1 and Figure 5 2 present typical performance curv...

Страница 9: ...d Load Regulation www ti com TPS40190EVM Typical Performance Data and Characteristic Curves SLUU232A SEPTEMBER 2005 REVISED JANUARY 2022 Submit Document Feedback TPS40190 Buck Controller Evaluation Module User s Guide 9 Copyright 2022 Texas Instruments Incorporated ...

Страница 10: ...e and evaluate the TPS40190 control IC in a practical application Moving components to both sides of the PCB or using additional internal layers can offer additional size reduction for space constrained systems Figure 6 1 TPS40190EVM 001 Component Placement Viewed from Top EVM Assembly Drawings and Layout www ti com 10 TPS40190 Buck Controller Evaluation Module User s Guide SLUU232A SEPTEMBER 2005...

Страница 11: ...en Viewed from Top www ti com EVM Assembly Drawings and Layout SLUU232A SEPTEMBER 2005 REVISED JANUARY 2022 Submit Document Feedback TPS40190 Buck Controller Evaluation Module User s Guide 11 Copyright 2022 Texas Instruments Incorporated ...

Страница 12: ...er Viewed from Top EVM Assembly Drawings and Layout www ti com 12 TPS40190 Buck Controller Evaluation Module User s Guide SLUU232A SEPTEMBER 2005 REVISED JANUARY 2022 Submit Document Feedback Copyright 2022 Texas Instruments Incorporated ...

Страница 13: ...r X Ray View from Top www ti com EVM Assembly Drawings and Layout SLUU232A SEPTEMBER 2005 REVISED JANUARY 2022 Submit Document Feedback TPS40190 Buck Controller Evaluation Module User s Guide 13 Copyright 2022 Texas Instruments Incorporated ...

Страница 14: ... A 5 1 mm 0 40x 0 35 OST ED1609 1 L1 Inductor SMT 2 2 μH 12 5 A 4 mΩ 0 492sq inch Coiltronics DR127 2R2 1 Q1 MOSFET N ch 60 V 115 mA 1 2 Ω SOT23 Vishay 2N7002 1 Q2 MOSFET NChannel 20 V 16 A 9 mΩ PWRPAKS0 8 Vishay Si7366DP 1 Q3 MOSFET NChannel 20 V 40 A 3 0 mΩ PWRPAKS0 8 Vishay Si7866ADP 1 R1 Resistor Chip 6 49 kΩ 1 16 W 1 0603 Std Std 0 R2 R6 R9 Resistor Chip Open 1 16 W 1 0603 Std Std 1 R3 Resist...

Страница 15: ...3M SJ5303 8 Revision History NOTE Page numbers for previous revisions may differ from page numbers in the current version Changes from Revision September 2005 to Revision A January 2022 Page Updated the numbering format for tables figures and cross references throughout the document 2 Updated the user s guide title 2 Edited user s guide for clarity 2 www ti com Revision History SLUU232A SEPTEMBER ...

Страница 16: ...other than TI b the nonconformity resulted from User s design specifications or instructions for such EVMs or improper system design or c User has not paid on time Testing and other quality control techniques are used to the extent TI deems necessary TI does not test all parameters of each EVM User s claims against TI under this Section 2 are void if User fails to notify TI of any apparent defects...

Страница 17: ... These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation...

Страница 18: ...y for convenience and should be verified by User 1 Use EVMs in a shielded room or any other test facility as defined in the notification 173 issued by Ministry of Internal Affairs and Communications on March 28 2006 based on Sub section 1 1 of Article 6 of the Ministry s Rule for Enforcement of Radio Law of Japan 2 Use EVMs only after User obtains the license of Test Radio Station as provided in R...

Страница 19: ... any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electrical shock hazard User assumes all responsibility and liability for any improper or unsafe handling or use of the EVM by User or its employees affiliates contractors or designees 4 4 User assumes all...

Страница 20: ...OR DAMAGES ARE CLAIMED THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT 9 Return Policy Except as otherwise provided TI does not offer any refunds returns or exchanges Furthermore no return of EVM s will be accepted if the package has been opened and no return of the EVM s will be accepted if they are damaged or otherwise not in a resalable condition If User feels it has...

Страница 21: ...o change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reproduction and display of these resources is prohibited No license is granted to any other TI intellectual property right or to any third party intellectual property right TI disclaims responsibility for and you will fully indemn...

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