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Test Results

8

SNVU696A – February 2020 – Revised June 2020

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Copyright © 2020, Texas Instruments Incorporated

LM5156EVM-BST User's Guide

5.3

Thermal Performance

Figure 6. Thermal Image V

IN

= 4 V I

OUT

= 3 A, No forced air cooling

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Содержание LM5156EVM-BST

Страница 1: ...cle by cycle current limit and output over voltage protection Contents 1 Features and Electrical Performance 3 2 Application Schematic 5 3 EVM Photo 5 4 Test Setup and Procedure 6 5 Test Results 6 6 Design Files 12 List of Figures 1 Application Circuit 5 2 EVM Photo 5 3 Test Setup 6 4 Efficiency vs Load 7 5 Load Regulation 7 6 Thermal Image VIN 4 V IOUT 3 A No forced air cooling 8 7 Steady State V...

Страница 2: ...T User s Guide 27 LM5156EVM BST Schematic 13 List of Tables 1 Electrical Performance Standard Configuration 3 2 Jumper Description 4 3 Standard Configuration Jumper Connections 6 4 LM5156EVM BST Bill of Materials 14 5 LM5156EVM BST Alternate Bill of Materials fSW 2 2 MHz 15 Trademarks All trademarks are the property of their respective owners ...

Страница 3: ...pplied with external power supply VCC supplied by external power supply BIAS supplied by output voltage Power good PGOOD indicator with selectable pull up source 440kHz Switching frequency External clock synchronization Programable slope compensation 1 1 Electrical Parameters Table 1 Electrical Performance Standard Configuration Parameter Test Conditions MIN TYP MAX UNIT INPUT CHARACTERISTICS Inpu...

Страница 4: ...ge sense connection TP6 VCCext Supply VCC from and external supply Note VCCext must be less than the voltage on the BIAS pin TP7 VAUX Supply the BIAS pin from and external supply R12 also connect to this rail TP8 VOUT Loop response positive injection point TP9 VOUT Loop response negative injection point TP10 SYNC Input for external clock synchronization TP11 SD High signal pulls UVLO pin to ground...

Страница 5: ...s Incorporated LM5156EVM BST User s Guide 2 Application Schematic The LM5156EVM BST is capable of multiple configurations Figure 1 shows the standard configuration of the LM5156EVM BST for which the parameters in Table 1 are valid Section 4 2 describes the correct jumper settings and measurement locations recreate the data presented in Section 5 Figure 1 Application Circuit 3 EVM Photo Figure 2 EV...

Страница 6: ...eter 2 Output voltage connect from VOUT to GND Ammeter 1 Input current must be able to handle 15A Shunt resistor can be used as needed Ammeter 2 Output current must be able to handle 3A Shunt resistor can be used as needed Electronic Load The load should be constant resistance CR or constant current CC capable It should safely handle 3A at 12V Oscilloscope 20 MHz bandwidth and AC coupling Measure ...

Страница 7: ...0 55 60 65 70 75 80 85 90 95 100 LM51 VIN 10V VIN 9V VIN 6V VIN 4V www ti com Test Results 7 SNVU696A February 2020 Revised June 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated LM5156EVM BST User s Guide 5 1 Efficiency Curves Figure 4 Efficiency vs Load 5 2 Load Regulation Curves Figure 5 Load Regulation ...

Страница 8: ...NVU696A February 2020 Revised June 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated LM5156EVM BST User s Guide 5 3 Thermal Performance Figure 6 Thermal Image VIN 4 V IOUT 3 A No forced air cooling ...

Страница 9: ...cumentation Feedback Copyright 2020 Texas Instruments Incorporated LM5156EVM BST User s Guide 5 4 Steady State Waveforms Figure 7 Steady State VIN 4 V IOUT 3 A Figure 8 Steady State VIN 6 V IOUT 3 A Figure 9 Steady State VIN 9 V IOUT 3 A Figure 10 Steady State VIN 10 V IOUT 3 A ...

Страница 10: ... Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated LM5156EVM BST User s Guide 5 5 Start Up Waveforms Figure 11 Start Up VIN 4V IOUT 3 A Figure 12 Start Up VIN 6V IOUT 3 A Figure 13 Start Up VIN 9 V IOUT 3 A Figure 14 Start Up VIN 10 V IOUT 3 A ...

Страница 11: ...20 50 40 100 LM51 Gain Phase www ti com Test Results 11 SNVU696A February 2020 Revised June 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated LM5156EVM BST User s Guide 5 6 Load Transient Waveforms Figure 15 Load Transient VIN 4 V IOUT 1 5 A to 3 A Figure 16 Load Transient VIN 6 V IOUT 1 5 A to 3 A Figure 17 Load Transient VIN 9 V IOUT 1 5 A to 3 A Figure 18 Load Tra...

Страница 12: ...20 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated LM5156EVM BST User s Guide 6 Design Files Figure 21 Top Silkscreen Figure 22 Top Layer Figure 23 Signal Layer 1 Figure 24 Signal Layer 2 Figure 25 Bottom Layer Figure 26 Bottom Silkscreen ...

Страница 13: ...ww ti com Design Files 13 SNVU696A February 2020 Revised June 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated LM5156EVM BST User s Guide Figure 27 LM5156EVM BST Schematic ...

Страница 14: ... CERM 0 22 uF 50 V 10 X7R AEC Q200 Grade 1 0603 0603 CGA3E3X7R1H22 4K080AB TDK C25 1 0 068uF CAP CERM 0 068 uF 50 V 10 X7R AEC Q200 Grade 1 0603 0603 CGA3E2X7R1H68 3K080AA TDK C26 1 1000pF CAP CERM 1000 pF 50 V 5 X7R AEC Q200 Grade 1 0603 0603 C0603C102J5RAC AUTO Kemet D1 1 60V Diode Schottky 60 V 10 A AEC Q101 CFP15 CFP15 PMEG060V100EP DZ Nexperia D2 D3 D4 3 60V Diode Schottky 60 V 1 A SOD 123F S...

Страница 15: ...ture Black TH Black Miniature Testpoint 5001 Keystone TP10 TP11 2 Test Point Miniature White TH White Miniature Testpoint 5002 Keystone U1 1 2 2 MHz Wide VIN 65 V Non synchronous Boost SEPIC Flyback Controller with Dual Random Spread Spectrum DSS0012B WSON 12 DSS0012B LM5156DSSR Texas Instruments Table 5 LM5156EVM BST Alternate Bill of Materials fSW 2 2 MHz Designator Qty Value Description Package...

Страница 16: ...H Test point TH Slot Test point 1040 Keystone J6 J7 J10 3 Header 100mil 3x1 Gold TH 3x1 Header TSW 103 07 G S Samtec J8 J9 2 Header 100mil 2x1 Gold TH 2x1 Header TSW 102 07 G S Samtec J11 1 Header 100mil 7x1 Gold TH 7x1 Header TSW 107 07 G S Samtec L2 1 680nH Inductor Shielded 680 nH 8 2A 0 009 Ohm AEC Q200 Grade 1 SMD Inductor 4 1x41 1x2 1m m 744383560068 Wurth Q1 1 60V MOSFET N CH 60 V 17 A AEC ...

Страница 17: ...Top Jumper Socket Single Operation 2 54mm Pitch Open Top Jumper Socket M7582 05 Harwin TP1 TP3 TP6 TP7 4 Test Point Miniature Red TH Red Miniature Testpoint 5000 Keystone TP4 TP5 2 Test Point Miniature Black TH Black Miniature Testpoint 5001 Keystone TP10 TP11 2 Test Point Miniature White TH White Miniature Testpoint 5002 Keystone U1 1 2 2 MHz Wide VIN 65 V Non synchronous Boost SEPIC Flyback Cont...

Страница 18: ...ack Copyright 2020 Texas Instruments Incorporated Revision History Revision History NOTE Page numbers for previous revisions may differ from page numbers in the current version Changes from Original February 2020 to A Revision Page Added LM5156EVM BST Alternate Bill of Materials fSW 2 2 MHz table 15 ...

Страница 19: ...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 20: ... 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 21: ...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 22: ... 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 23: ...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 24: ...se resources are subject to 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...

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